1-Calc 3.0
Copyright 2003-2006 Omega One Software LLC

Using 1-Calc
Main Buttons
Currency Converter
Unit Converter
Tip Calculator
Default Button Groups
Custom Button Groups
Graphing Worksheets
Financial Worksheets
Statistics Worksheet
Graph Screen

General Options
Calculator Options
Advanced Options
Groups Options
Customize Options
Currency Options
Skin Selections

Purchasing
Installing / Uninstalling
Credits

Using 1-Calc

1-Calc, the only calculator you'll ever need: it works like your favorite calculator, only better.  It supports 4 different calculator "modes", meaning it can behave like 4 different calculator types depending on the settings: R.P.N. (HP, Texas Instruments Etc), Algebraic (most scientific), D.A.L. (advanced scientific); Chain (simple)).  You may either use your fingers or the stylus to press the onscreen buttons and start calculating right away. Use the green menu button in the upper left corner of the screen to gain access to the menu, from here you can change button groups, enter the options screen or exit 1-Calc. You may also use the directional pad on your Pocket PC to scroll through button groups by pressing up or down. Only button groups currently selected in the "Groups" tab of the Options screen will be accessible from the menu or via the up down buttons.

This document is written assuming you are using the default skin that came with 1-Calc. If you are using a different skin and are unfamiliar with the operation of 1-Calc, it is recommended that you first select the default skin before reading further. To do so, press the menu button, located in the upper left of 1-Calc and press "Options". From the options screen, press the arrow facing right in the upper right corner of the skin until the tab labeled "Skins" appears, press on that Tab. From this screen you should see one or more skin names displayed, select "Default" and then press the "ok" button in the upper right corner of the screen.

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Main Buttons

1-Calc has 20 main buttons that are placed on the lower half of the screen. These buttons are always present regardless of the mode 1-Calc is currently set to use and allow for basic number entry and basic math operations. You can select between four (4) button layouts for the main buttons from the the Skins Tab Page in the Options screen.
Only 18 buttons are present when using the "Square Screen" button layout. This layout is specifically designed for Pocket PC devices with square screens but may be used on any PC or Pocket PC.

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Currency Converter

The Currency Converter can be displayed by selecting "Currency Converter" from the 1-Calc menu. If you cannot see the currency converter, you'll need to select it from the Groups Tab Page under "Options".

If you have Internet access or have your Pocket PC synchronized with a PC you can get the latest currency conversion rates by pressing the update button. The update button is to the right of the menu button and is labeled with two arrows.

When viewing the Currency Converter, you will see 2 display areas and 2 additional blue buttons below the menu button. The top display will show the amount entered using the numerical buttons on the calculator. The lower display will automatically convert this value to the other currency amount. To change the conversion currency, press the upper blue button, this will display a list of currencies with their three letter abbreviations shown in brackets to the left of the name.

To switch which currency to convert from, tap the "screen" area for the relevant currency. Values will be entered on the display area that is lighter in color. When changing to other calculator screens, the value in the lighter area will be used for subsequent calculations.

The currency converter will save the last four (4) used currencies at the top of the currency list.

The 1-Calc Currency Converter will always show the three (3) letter abbreviation for the currently selected currencies on each display.

You may do basic calculations while using the Currency Converter by using the +, -, x, ÷, +/- and = buttons.

For more information on the Currency Converter, please see the Currency Options section.

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Unit Converter

The Unit Converter can be displayed by selecting "Unit Converter" from the 1-Calc menu. If you cannot see the unit converter, you'll need to select it from the Groups Tab Page under "Options".

When viewing the Unit Converter, you will see three (3) display areas and three additional buttons. The top display will show the type of conversions being done. The middle display will show the values entered using the numerical buttons on the calculator. The bottom display will converter the amount you've entered in the middle display.

To change the type of conversions, press the blue button to the right of the menu button and to the left of the top display area. This will display a list of conversion types. Tap on a conversion type to choose a new one. To switch which display area to enter values into, tap on the screen in the relevant display area. Values will be entered on the display area that is lighter in color. When changing to other calculator screens, the value in the lighter area will be used for subsequent calculations.

To change the units to convert from / to, press the blue button to the left of the conversion value and select a new type of units. The abbreviation for the currently selected measurement will show at the top of the middle display.

When choosing Clothing Conversions, a new page will display allowing easy conversions between US, UK, European and Japanese clothing sizes for many common clothing articles. To change the clothing conversion type or to change the sizes, press the down arrows. Press the OK button when finished.

You may do basic calculations while using the Unit Converter by using the +, -, x, ÷, +/- and = buttons.

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Tip Calculator

The bill amount should be entered using the number buttons at the bottom of 1-Calc.  By pressing on the two down arrow buttons, the percentage of the tip and the number of people to split the bill can be changed.  The Tip Calculator will display the Total Tip and the total amount per person.

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Button Groups

Default
Algebra
Base Conversions
Constants
Conversions
Currency Converter
Custom 1,2,3
Financial
Memory
Statistics
Tip Calculator
Trigonometry
Unit Converter

Default

The default button group can be displayed by selecting "Default" from the 1-Calc menu. If you cannot see Default, you'll need to select it from the Groups Tab Page under "Options".

The default button group will show 10 commonly use calculator buttons above the main buttons. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(MC) Memory Clear - This button will clear the main calculator memory used for storing temporary numbers.

(x²) X Squared - This will square the current value onscreen. For example, if the number "3" was displayed, pushing x² would give "9".

(xy) X to the Y - This button will raise a number to the power of another number. To find 2 to the power of 3, you would press "2" "xy" "3" "="

(Exp) Exponent - This will raise a number to a power of 10. For example, the following key strokes will give the answer "300". "3" "Exp" "2" "="

(<-) Backspace - This button will delete the last single number entered in the display area. Functions in a similar manner to the backspace key on a computer keyboard.

(MS) Memory Store - This will store the currently displayed number into the main memory storage, this can be recalled at any time using the Memory Recall button (MR). When a number is stored in the main memory, an indicator "M1" will show at the top of the main display area.

(√) Square Root - This button will find the square root of the currently displayed number.

(%) Percentage - Allows calculations using percentages. To add 25% of 5 to itself, you would press "5" "+" "2" "5" "%" "=". Which would give 6.25

(1/x) 1 Over X - This will give the inverse of the onscreen number. For example, "2" "1/x" will give 0.5

(CE) Clear Equation - This will clear the last number entered without restarting the current calculation

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Algebra

The algebra button group can be displayed by selecting "Algebra" from the 1-Calc menu. If you cannot see Algebra, you'll need to select it from the Groups Tab Page under "Options".

The algebra button group will show 10 commonly use functions for algebra calculations as well as a Graphing Button and Quadratic Equation Button. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(Grph) Graphing - This button will open the Graphing Worksheet.

(x²) X Squared - This will square the current value onscreen. For example, if the number "3" was displayed, pushing x² would give "9"

(xy) X to the Y - This button will raise a number to the power of another number. To find 2 to the power of 3, you would press "2" "xy" "3" "="

(!) Factorial - The factorial button will give the factorial of the onscreen number. If the onscreen number is not an integer, any decimal values will be ignored.

(Exp) Exponent - This will raise a number to a power of 10. For example, the following key strokes will give the answer "300". "3" "Exp" "2" "="

(Ans) Last Answer - - this will put the last calculated answer (after pressing equals "=") on screen

(Quad) Quad -This button will open the Quadratic Equation Worksheet.

(√) Square Root -This button will find the square root of the currently displayed number

(1/x) 1 Over X - This will give the inverse of the onscreen number. For example, "2" "1/x" will give 0.5

Cube Root -This button will find the cube root of the currently displayed number. For example, if 8 is onscreen, pressing the cube root button will give 2

( ) Open Bracket and Close Bracket - The open and close brackets can be used in more complex equations. Values and expressions within brackets will be evaluated before other operations.

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Base Conversions

The base conversion button group can be displayed by selecting "Base Conversions" from the 1-Calc menu. If you cannot see base conversions, you'll need to select it from the Groups Tab Page under "Options".

The base conversions button group will show 15 commonly use functions for base conversions and calculations. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

1-Calc will display the current base it is operating with an onscreen indicator to the left of the DEG/RAD/GRAD indicator. It will show DEC for Decimal, which is normal, BIN for binary, Oct for Octal, and HEX for hexadecimal. The A, B, C, D, E and F buttons will only work in HEX mode. If you are using OCT, you will not be able to use the 8 and 9 buttons, if you are using BIN, you will only be able to use the 0 and 1 numerical buttons.

(AND) AND Operator -Applies the AND logical operation on two values.

(OR) OR Operator -Applies the inclusive or logical operation on two values.

(XOR) XOR Operator -Applies the exclusive or logical operation on two values.

(MOD) MOD Operator -Returns the remainder of two numbers.

(|x|) Absolute Value -Returns the absolute value of whatever is onscreen. Can be used with brackets in D.A.L. mode.

(A) -Will add the Hex value A to the screen when in HEX mode

(B) -Will add the Hex value B to the screen when in HEX mode

(C) -Will add the Hex value C to the screen when in HEX mode

(Bin) Binary - Will change 1-Calc to binary mode. The base indicator will change to BIN

(Oct) Octal - Will change 1-Calc to Octal mode. The base indicator will change to OCT

(D) - Will add the Hex value D to the screen when in HEX mode

(E) - Will add the Hex value E to the screen when in HEX mode

(F) - Will add the Hex value F to the screen when in HEX mode

(Dec) Decimal - Will change 1-Calc to decimal mode. This the normal number base (base 10). The base indicator will change to DEC

(HEX) Hexadecimal - Will change 1-Calc to Hexadecimal mode. The base indicator will change to HEX

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Constants

The constants conversion button group can be displayed by selecting "Constants" from the 1-Calc menu. If you cannot see constants, you'll need to select it from the Groups Tab Page under "Options".

The constants button group will show 15 commonly constants for scientific calculations. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(c) Speed of Light in meters/second

(eV) Electron Volt. in Joules

(Me) Mass of an Electron in Kilograms

{Mp) Mass of a Proton in Kilograms

(Mn) Mass of a Neutron in Kilograms

(Na) Avogadro's Number - Mole (dimensionless)

(G) Newtonian Constant of Gravitation in Newtons x Meters˛ / Kilograms˛

(g) Acceleration due to Gravity on Earth in Meters / Second˛

(u) Magnetic Constant in Newtons x Area -2

(pi) π (dimensionless)

(h) Planck's Constant in Joules x Seconds

(R) Molar Gas Constant in Joules / (mol x Degrees Kelvin)

(k) Boltzmann's Constant in Joules / Degree Kelvin

(F) Faraday's Constant in C / mol

(amu) Atomic Mass Unit (amu) (AMU) (u) or dalton (Da) in Kilograms

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Conversions

The Conversions button group can be displayed by selecting "Conversions" from the 1-Calc menu. If you cannot see Conversions, you'll need to select it from the Groups Tab Page under "Options".

This button group will show four conversion buttons to convert between polar and rectangular co-ordinates and two buttons to convert between decimal and degrees. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(DEG>) Convert from Decimal to Degrees - This button will convert the onscreen number from a decimal number to degrees

(X, Y>R) This button works like an operator (+, -, *, /) and will give an R value from an x,y pair

(R, Θ>X) This button works like an operator (+, -, *, /) and will give an X value from an R, Θ pair

(DEC>) This will convert the onscreen number from Degrees to Decimal

(X,Y>Θ) This button works like an operator (+, -, *, /) and will give a Θ (angle) value from an x,y pair

(R, Θ>Y) This button works like an operator (+, -, *, /) and will give a Y value from an R, Θ pair

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Financial

The Financial button group can be displayed by selecting "Financial" from the 1-Calc menu. If you cannot see Financial, you'll need to select it from the Groups Tab Page under "Options".

The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(TVM) Time Value Money - This button will open the Time Value Money Worksheet.

(%Δ) Percentage Change - This button will open the Percentage Change Worksheet.

(ICon) Interest Rate Conversion - This button will open the Interest Rate Conversion Worksheet.

(Date) Date Calculations - This button will open the Difference Between Days Worksheet.

(MS) Memory Store - This will store the currently displayed number into the main memory storage, this can be recalled at any time using the Memory Recall button (MR). When a number is stored in the main memory, an indicator "M1" will show at the top of the main display area.

(Dep) Depreciation - This button will open the Depreciation Worksheet.

(Prft) Profit Margin - This button will open the Profit Margin Worksheet.

(BrkE) Break Even - This button will open the Time Value Money Worksheet.

(%) Percentage - Allows calculations using percentages. To add 25% of 5 to itself, you would press "5" "+" "2" "5" "%" "=". Which would give 6.25

(<-) Backspace - This button will delete the last single number entered in the display area. Functions in a similar manner to the backspace key on a computer keyboard.

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Memory

The memory button group can be displayed by selecting "Memory" from the 1-Calc menu. If you cannot see memory, you'll need to select it from the Groups Tab Page under "Options".

The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(CPY) Copy - This button will copy the value of the onscreen number into the clipboard to be pasted into other Pocket PC applications

(MS2) Memory Store 2 - This will store the onscreen number into the 2nd memory storage location. An "M2" indicator will appear. To clear, press MS2 when nothing is displayed onscreen.

(MS3) Memory Store 3 - As MS2, but for the 3rd memory location.

(MS4) Memory Store 4 - As MS2, but for the 4th memory location.

(MS5) Memory Store 5 - As MS2, but for the 5th memory location.

(PST) Paste - This will paste the current text in the clipboard from 1-Calc. For example, you may want to use a number saved in a Pocket Excel spreadsheet in a calculation in 1-Calc. Only ever try to paste numbers into 1-Calc.

(MR2) Memory Recall 2 - This will recall the number stored in memory location 2. An "M2" indicator will show onscreen if there is a value stored in M2 which you can recall. You can also view the memory contents from the "Options" screen.

(MR3) Memory Recall 3 - As MR2, but for the 3rd memory location.

(MR4) Memory Recall 4 - As MR2, but for the 4th memory location.

(MR5) Memory Recall 5 - As MR2, but for the 5th memory location.

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Statistics

The Statistics button group can be displayed by selecting "Statistics" from the 1-Calc menu. If you cannot see Statistics, you'll need to select it from the Groups Tab Page under "Options".

The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

(MC) Memory Clear - This button will clear the main calculator memory used for storing temporary numbers.

(Stat) Statistics - This button will open the Statistics Worksheet.

(xy) X to the Y - This button will raise a number to the power of another number. To find 2 to the power of 3, you would press "2" "xy" "3" "=".

(rand) Random - Returns a random decimal number between 0 and 1.

(<-) Backspace - This button will delete the last single number entered in the display area. Functions in a similar manner to the backspace key on a computer keyboard.

(MS) Memory Store - This will store the currently displayed number into the main memory storage, this can be recalled at any time using the Memory Recall button (MR). When a number is stored in the main memory, an indicator "M1" will show at the top of the main display area.

(nPr) Permutations Returns the number of permutations given two numbers. Example: 8 nPr 3 = 336.

(nCr) Combinations Returns the number of possible combinations given two numbers. Example: 52 nCr 5 = 2,598,960.

(ANS) Last Answer - this will put the last calculated answer (after pressing equals "=") on screen.

(CE) Clear Equation - This will clear the last number entered without restarting the current calculation.

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Trigonometry

The Trigonometry button group can be displayed by selecting "Trigonometry" from the 1-Calc menu. If you cannot see Trig 1, you'll need to select it from the Groups Tab Page under "Options".

The Trigonometry button group will show 24 commonly use functions for trigonometry calculations. The button names and functionality will be described in the order they appear on 1-Calc starting from the top left corner.

Sin / Cos / Tan buttons will operate in Degrees, Radians, or Gradians depending on what mode 1-Calc is set. The mode can be changed with DRG, and DRG> buttons in Trig1 and can be seen by the indicator and the top of the display area. It will either show "DEG", "RAD", or "GRAD" depending on the current mode.

(Sin) Sine - Will find the sine of the onscreen number.

(Cos) Cosine - Will fine the cosine of the onscreen number.

(Tan) Tangent - Will find the tangent of the onscreen number.

(DRG>) - Will change the calculator to work in Degrees, Radians, or Gradians. An indicator displaying the current mode is shown at the top of the display. If a number is currently displayed, its value will be converted as the calculator changes modes.

(<-) Backspace - This button will delete the last single number entered in the display area. Functions in a similar manner to the backspace key on a computer keyboard.

(CE) Clear Equation - This will clear the last number entered without restarting the current calculation.

(Sin-1) Inverse Sine - Will find the inverse sine of the onscreen number.

(Cos-1) Inverse Cosine - Will find the inverse cosine of the onscreen number.

(Tan-1) Inverse Tangent - Will find in the inverse tangent of the onscreen number.

(DRG) - Will change the calculator to work in Degrees, Radians, or Gradians. An indicator displaying the current mode is shown at the top of the display.

( ) Open Bracket and Close Bracket - The open and close brackets can be used in more complex equations. Values and expressions within brackets will be evaluated before other operations.

(Sinh) Hyperbolic Sine - Will find the hyperbolic sine of the onscreen number.

(Cosh) Hyperbolic Cosine - Will fine the hyperbolic cosine of the onscreen number.

(Tanh) Hyperbolic Tangent - Will find the hyperbolic tangent of the onscreen number.

(Log) Log to Base 10 - Will find the Log Base 10 of the onscreen number.

(Ln) Natural Log - Will find the Log Base e of the onscreen number.

(xy) X to the Y - This button will raise a number to the power of another number. To find 2 to the power of 3, you would press "2" "xy" "3" "=".

(aSnh) Inverse Hyperbolic Sine - Will find the inverse hyperbolic sine of the onscreen number.

(aCsh) Inverse Hyperbolic Cosine - Will fine the inverse hyperbolic cosine of the onscreen number.

(aTnh) Inverse Hyperbolic Tangent - Will find the inverse hyperbolic tangent of the onscreen number.

(10x) 10 to the X - Will give 10 raised to the power of the onscreen number.

(ex) e to the X - Will give 2 (2.71...) raised to the power of the onscreen number.

(pi) π - This button will enter the value of Pi to 10 digits to the screen.

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Custom Button Groups

Custom button groups can be seen by selecting either Custom 1, Custom 2, or Custom 3 from the menu button. If you cannot see any of the custom groups on the menu button, you will need to select them from the groups tab under "Options". Note: Only Custom 1 appears on the Menu list by default.

The custom button groups can display either 10, 12, 15, 20, 24, 32 or 40 buttons and can be customized from the custom tab in the options menu.

For 1-Calc version 3.0 and greater, the Custom Button Groups settings are stored on the device. You can now change skins or reinstall and your settings will be saved. To keep your Custom Button Groups settings you must choose to save user settings when uninstalling. If you would like to back-up your custom settings when changing devices or performing a hard reset, please go to www.omegaone.com/support and download the Registry Backup tool.

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Graphing Worksheets

Graphing
Quadractic Equation

1-Calc has two graphing worksheets, Graphing, and Quadratic. The Graphing worksheet allows users to graph up to four functions in rectangular coordinates. The Quadratic Equation worksheet allows users to graph and solve real or imaginary quadratic equations. Clink the links above for more information.

The graphing worksheets have several additional buttons.

Up and Down Arrows - Press to move to the previous / next entry on the worksheet. Users may also tap the onscreen arrows or use Up / Down on the D-Pad.

Quit - Close the worksheet.

Graph - Show the graphing screen.

Opt.. - Show the Options.

Graphing

The graphing worksheet allows up to four equations to be entered. Press the Back and Next buttons to access additional buttons to enter equations. The functions are of the form f(x), use the X button to enter the x variable.

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Quadratic Equation

The Quadratic Equation Worksheet allows users to enter quadratic equations in the form:

(- B +/- (B˛ - 4AC)˛ ) / 2A

Users can press the Calc button to view the solutions to the equation or press the Graph button to see it represented in rectangular coordinates.

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Financial Worksheets

(TVM) Time Value Money
(%Δ) Percentage Change
(ICon) Interest Rate Conversions
(Date) Difference between Dates
(Dep) Depreciation
(Prft) Profit Margin
(BrkE) Break Even

In the above pages "ENTER" next to the amount means this value can be entered by the user. "CALC" next to the amount means the value can be left blank and it will output the result of the calculation.

There are several financial worksheets available in 1-Calc covering most common financial problems. The worksheets show the following additional buttons:

Up and Down Arrows - Press to move to the previous / next entry on the worksheet. Users may also tap the onscreen arrows or use Up / Down on the D-Pad.

Quit - Close the worksheet

Graph - Show the graphing screen

Opt.. - Show the Options

Calc - Calculate. On most worksheets it will calculate the value of the selected entry (if available).


(TVM) Time Value Money

Use this worksheet to solve Time, Value, Money problems. By entering three or four of the TVM values, you may solve for any of the following by selecting the field on the worksheet and pressing "Calc": Number of Terms, Interest Rate per Year, Present Value, Future Value or Payment.

NTerm - Number of Terms - ENTER / CALC

I/Yr - Interest Rate Per Year - ENTER / CALC

PVal - Present Value - ENTER / CALC

PMT - Payment - ENTER / CALC

FVal - Future Value - ENTER / CALC

P/Y - Payments per Year, defaults to 12 - ENTER

C/Y - Compounding Terms per Year - defaults to 12 - ENTER

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(%Δ) Percentage Change

Use this worksheet to solve Percentage Change problems. By entering two or three of the %Δ values, you may solve for any of the following by selecting the field on the worksheet and pressing "Calc": Number of Periods, Percentage Change, Present Value, or Future Value.

#PD - Number of Periods - ENTER / CALC

%CH - Percentage Change - ENTER / CALC

PVal - Present Value - ENTER / CALC

FVal - Future Value - ENTER / CALC

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(ICon) Interest Rate Conversions

Use this worksheet to convert to and from an effective annual interest rate to a nominal (period) interest rates. By entering two of the values, you may solve for any of the following by selecting the field on the worksheet and pressing "Calc": Number of Periods, Percentage Change, Present Value, or Future Value.

C/Y - Compounding Periods per Year - ENTER / CALC

NOM - Nominal Interest Rate - ENTER / CALC

EFF - Annual Effective Interest Rate - ENTER / CALC

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(Date) Difference between Dates

Use this worksheet to find the number of days between Dates. The worksheet will provide two (2) answers, the true number of days between dates, and the 30/360 day count method difference in days. Enter the Start date and the End date and press Calc to get the results.

SYear - Start Year - ENTER

SMnth - Start Month - ENTER

SDay - Start Day - ENTER

EYear - End Year - ENTER

EMnth - End Month - ENTER

EDay - End Day - ENTER

Dif - Number of Days between Dates - CALC

C/Y - Number of Days between Dates using the 30/360 method - CALC

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(Dep) Depreciation

Use this worksheet to solve Depreciation problem using the Straight Line Method. Enter the Life of the Asset, the Start Year, Start Month, Cost of the Asset and the Salvage Value. Once all values have been entered, press the Calc button to calculate the Depreciation, Remaining Book Value, and the Remaining Depreciable Value.

Life - Life of the Asset in Years - ENTER

SMnth - Start Month - ENTER

SYear - Start Year - ENTER

Cost - Cost of the Asset - ENTER

Sal - Salvage Value of the Asset - ENTER

Year - Year to Compute - ENTER

Dep - Depreciation for the Year - CALC

RBVal - Remaining Book Value at the End of the Year - CALC

RDVal - Remaining Depreciable Value - CALC

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(Prft) Profit Margin

Use this worksheet to solve profit margin problems. By entering two of the values, you may solve for any of the following by selecting the field on the worksheet and pressing "Calc":

Cost - Cost - ENTER / CALC

Price - Selling Price - ENTER / CALC

Profit - Profit Margin - ENTER / CALC

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(BrkE) Break Even

Use this worksheet to solve Break Even Problems. By entering four of the values, you may solve for the remaining unknowns by selecting the field on the worksheet and pressing "Calc":

PFT - Profit - ENTER / CALC

Price - Unit Price - ENTER / CALC

FCost - Fixed Cost - i.e. overhead costs - ENTER / CALC

VCost - Variable Cost per Unit - ENTER / CALC

Qnty - Number of Units (quantity) - ENTER / CALC

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Statistics Worksheet

1-Calc will solve statistical regression problems. You may solve for the following regression types: Linear, Natural Log, Base 10 Log, Exponential, Power and Single Variable. Change the regression type from the Advanced Tab on the Options screen.

Enter data by entering Values in the onscreen fields, x0, y0, x1, y1, etc.

The statistics worksheet also has the following buttons:

Up and Down Arrows - Press to move to the previous / next entry on the worksheet. Users may also tap the onscreen arrows or use Up / Down on the D-Pad.

Quit - Close the worksheet.

Graph - Show the graphing screen.

Opt.. - Show the Options.

Calc - Calculate. This will show the a variety of statistical data depending on the regression type. It will also show the Y intercept, the Slope, and the Regression.

Graph - See a graphical representation of the data including both the data points and the best fit line.

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Graph Screen

The Graph Screen can be accessed from theGraphing Worksheet, the Quadractic Equation Worksheet, or the Statistics Worksheet.

The Graph screen will show upto four (4) graphs displayed in different colors. You can zoom in and out of the graph by using the zoom buttons on the menu or press the reset button to restore the graph to its default view. The default view is centered at the origin and shows 10 units of Width and 10 units of Height.

You can change the graph mode by selecting Mode on the Menu.

Translate allows you to tap and drag the graph to move the viewing position on the graph.

Zoom allows you to "drag" a box onscreen and the graph will zoom to the selected area.

Point on Graph allows you to find the co-ordinates of a specfic location on the graph. Tap on screen and the co-ordinates will be shown based on the X-position of the mouse or stylus. Only locations currently visable onscreen will be shown. You can choose which graph to track by clicking Graph on the menu.


If you would like to improve the perfomance of the Graph screen you may wish to change the options on the Adanced Tab.

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General Options

To access the Options screen, press the green menu button in the upper left corner of 1-Calc and select Options. To access the General tab, press on the tab labeled General. This page is displayed by default when entering the options screen.

Language
Select the language to be shown for 1-Calc menus and options.

Currency Download
You may select here if 1-Calc should use a proxy server when trying to download currency updates (PC version only).

Scrolling
Scrolling refers to the transition between button groups on 1-Calc. You may set it to Normal, which is the default speed, Slow: which will reduce the scrolling speed, or fast: which will double the normal scrolling speed. Off will disable the scrolling transitions and button groups will change instantly.

Use Regional Settings (Currency)
This will make 1-Calc format the currency converter displays according to the Regional Settings of your Pocket PC (recommended on).

Enable ClearType
This will enable ClearType for the 1-Calc displays and menu.

Play Sounds
This will play a "click" sound when buttons are pressed. Note, sounds must be enabled for programs in your settings and the volume must not be set to zero.

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Calculator (Options)

Notation
This controls the way 1-Calc handles large and small values displayed onscreen. Change the notation style by selecting a different option in the notation section.

Standard - is the default, this will use exponents if the calculated answer is smaller that 0.0001 or 1e-4. It will also use exponents if the calculated answer is 1000000000 ( 1.0e10) or larger.

Scientific - will select Scientific notation. Exponents will always be used for numbers less than 1 or equal to 10 or greater. Numbers between 1 and 10 will not display the exponent portion as the exponent will be equal to zero.

Fixed - will select fixed notation. Fixed notation will not display answers using exponents until the answer exceeds the calculators display accuracy of 12 significant figures. It will use exponents for numbers less than 0.000000001 (1.0e-9). Like Standard , it will use exponents for numbers equal to and greater than 1000000000 ( 1.0e10).

Engineering - will select Engineering notation. It operates much like Scientific notation except that exponents will always be represented in powers of 3. For example. Scientific Notation will represent 10000 as 1e4, Engineering Notation will represent it as 10e3. For numbers greater than 1 and less than 1000, no exponent will be shown as the exponent value will be zero.

*Please note, the above mentioned tolerances refer to the absolute value of an answer and not just the positive representation. For example, Standard and Fixed will use exponents for numbers larger than 1.0e10 or less than -1.0e10.

Calculator Mode
1-Calc can operate in four (4) different calculator modes:

Algebraic - behaves like a basic scientific calculator.

D.A.L. - Direct Algebraic Entry, behaves like an advanced direct input scientific calculator.  Some functions can be entered before entering the values.

R.P.N - Reverse Polish Notation.

Chain (Simple) - Works like a simple handheld calculator.

R.P.N. Stack Size
The stack size can for R.P.N. mode can be adjusted between a 3, 4, and 12 layer stack.  This only affects 1-Calc in R.P.N. Calculator mode.

Repeated Equals
When 1-Calc is in Chain (simple) mode, the equals key can be pressed repeatedly after a calculation to repeat the previous calculation.

Use Regional Setting (Calculator)
This will make 1-Calc format the calculator display according to the Regional Settings of your Pocket PC

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Advanced Tab (Options)

End of Period Payments
Select to use End of Period Payment calculations for the (TVM) Time Value Money Worksheet.

Regression Type
Change the regression type for the Statistics Worksheet.

Show Points Only
Only show points approximating the function when graphing (can be used to improve performance).

Accuracy
Adjust the accuracy when graphing. Med and Low will improve performance but lower accuracy.

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Groups Tab (Options)

You can use this screen to select which groups will appear in the menu and be accessible from the up and down buttons on your Pocket PC. If you select more than nine groups 1-Calc will warn you and only use the first nine groups. If you select zero groups, 1-Calc will warn you and it won't save your changes.

You can use the four buttons on the right side of the screen to organize the groups. The order they appear in the Groups Tab page is the order they will appear on the menu, and the order they will change when using the up and down buttons.

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Customize Tab (Options)

This screen allows you to customize the button layouts on the 3 custom button groups for 1-Calc.

To start, select either Custom 1, 2, or 3 from the drop down list under "Select Group to Modify". You can then decide how many buttons you wish to display on your custom group. The more buttons selected the smaller they will appear. 10 or 12 are easily pressed with your finger, more buttons will likely require the stylus. Choose between 10, 12, 15, 18, 24, 32 or 40 buttons.

To change a button:

To switch a button:

Changes are automatically saved when you exit this screen.

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Currency Tab (Options)

The currency tab will allow you to update the currency values to the latest values. To update the currency, the Pocket PC must have an active Internet connection. This can be achieved by attaching the Pocket PC to a PC with an Internet connection, using Wi-Fi or a cell phone data connection.

Auto Update
If Auto update is selected, 1-Calc will attempt to update the currency values from the Internet every time your Pocket PC is synchronized with the PC.

Update Now Button
If you have Internet access or have your Pocket PC synchronized with a PC you can get the latest currency conversion rates by pressing this button.

You can view the current currency values in the bottom half of the Currency Tab screen. The vales represent the US value of 1 unit of currency. For example, at the time this document was written, the Australian Dollar exchange rate was 0.986. This means, 1 Australian dollar is worth $0.97 US.

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Skins Tab (Options)

From this screen, you may select any installed Skins. By default, 1-Calc only comes with one installed skin called "Default". Other skins are available - see www.1calc.com for more information.

You may also choose to use the colors of the current skin on the graphing screen, by checking "Use Skin Colors on Graph".

You may also choose different button layouts for the main buttons of 1-Calc by changing the "Button Layout" option.

Since the act of creating a new skin for 1-Calc are complex and will most likely require a desktop PC, help for skinning is not provided in this document. For more information on skinning 1-Calc, please visit www.1calc.com

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Purchasing

If you enjoyed using the this version of 1-Calc and would like to purchase it, please go to http://www.1calc.com

The full version of 1-Calc 3.0 requires a Registration Code, this code will be provided at the time or purchase or will be emailed to you promptly.

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Installing / Uninstalling

When installing a new version of 1-Calc it is recommended that you uninstall the previous version first. When updating from v2 to v3 it is also recommended that you choose to delete your user settings when uninstalling version v2.

To uninstall 1-Calc:

1-Calc should now have been uninstalled.

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Credits

Translation
Catalan Localization - David Trias i Borràs
Catalan Help Document - David Trias i Borràs
German Localization - Stefan Busemann
German Help Document - Wolfgang Niederführ, Simone Ueberwasser
Italian Localization - Nicola Fabiano
Italian Help Document - Enrico Nistri

Development
Co-Designed by Implicit Software Solutions Inc
Developed by Implicit Software Solutions Inc

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