## Introduction

With the calculator you can:

- Calculate expressions of an infinite length and complexity.
- Store an infinite number of lines containing expressions for reference or later use.
- Create an infinite number of user variables.
- Create an infinite number of user functions with up to three parameters.
- Save all the preceding possibilities for later use.
- Draw two-dimensional graphics.

Infinite means as long as your memory can support it.

## Examples

1 + 1

3 * sqr( 12001 + 12 / 5 )

23x² + 15x

sin( 2 pi / 15 )

7 + | -45 * 2.3 |

7 + abs( -45 * 2.3 )

12°3' + 15'34"

rad_deg( x ) = x * 180 / pi

rad_deg( 52.17 )

f( x, y ) = x * 3 + y

f( 15.23, rad_deg( 52.17 ))

## Screenshots

- f(x) = tan x
- g(x) = sin x * exp(-.25x)

- f(x) = (x²+1)/(2x³-4x-1)

## Functions

Here you can find function definitions for the calculator.

## Goniometry

rad_deg(x) = x*180/pi ; Convert radians to degrees

deg_rad(x) = x*pi/180 ; Convert degrees to radians

## Other functions

tax(x) = x+x*taxRate/100 ; Add taxRate to x

crc(x)=(x/97-(int(x/97)))*97 ; cyclic redundancy checking

## Download

Download only the Readme.txt file

Donwnload the manual Expression-Calculator-ExpCalc.pdf

Download the InstallShield setup program that will automatically install ExpCalc. (An uninstall entry will be added).

Because this server doesn't allow saving executable files, I made a .zip compressed file. To use, first unzip, then start the file ExpCalc_1_3Install.exe

ExpCalc_1_3Install.exe (1.2 MB)

Download the non-InstallShield version of the ExpCalc program. For this option you should unzip the file to the desired directory and then run the application from there.

Extract this file into the folder "c:\Program Files\" or another folder.

ExpCalc_1_3.zip (1.2 MB)

## Portable Expression Calculator

This version is compatible with the PortableApps environment. Everything is stored on a USB flash drive under the \PortableApps\ExpCalc folder. No changes are made to the host computer's file system or registry. All settings and data are stored in \PortableApps\ExpCalc\data

Download Portable Expression Calculator installer : PortableExpCalc.paf.exe

## Copyright

This program is Freeware.

IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, DO NOT USE THIS SOFTWARE.

«Expression Calculator» is owned by WILLEMS Gunther. The software and documentation may be re-distributed in its entirety and unmodified. «Expression Calculator» is freeware software. It may not be distributed (with or without other products) for profit without the author's expressed written permission.

NO WARRANTY: Any use of the Software is at your own risk.