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Kalkules v1.10.0.26

billon on 18 Jul 2018
  • 7MB (uncompressed)
  • Released on 11 Jul 2018
  • Suggested by Wolfghost

Kalkules is an universal scientific calculator that comes with many nontraditional functions and built-in tools designed to make your calculations easier and faster.

System Requirements: WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
License: Freeware
How to extract: Download the ZIP package and extract to a folder of your choice. Launch Kalkules.exe.

  • To disable update check at startup, edit settings.ini and change the CheckUpdatesAtStart=1 to CheckUpdatesAtStart=0 or launch Kalkules.exe and open the Preferences tab. Uncheck 'Check for updates at start"
  • To save additional space, delete unnecessary language files and manuals
What's new? See:

X-Maxima v5.31.2

webfork on 22 Oct 2016
  • 130MB (uncompressed)
  • Released on 18 Jan 2014
  • Suggested by Taf

Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high precision numeric results by using exact fractions, arbitrary precision integers, and variable precision floating point numbers. Maxima can plot functions and data in two and three dimensions.

Cross platform with clients available for Linux, OS X, and Android (thanks Midas).

X-Maxima is a portablized version of the program. Alternatively, an unstable Maxima portable package is available from

System Requirements: Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
Stealth: ? Yes
License: GPL
How to extract: Download the ZIP package and extract to a folder of your choice. Launch X-Maxima.exe.
Latest comments
Midas on 2014-04-26 20:42

Available on most comptuing platforms (Linux & MacOS, e.g.), a (well regarded) version of Maxima exists also for Android, see:

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Free Numerology Calculator v3.41

webfork on 25 Apr 2017

Free Numerology Calculator application is a math calculator with numerology functions:

  • Calculate Pythagorean and Chaldean
  • Consonant Total and Result
  • Vowel Total and Result
  • Sum of Numeric Distribution of Vowels and Consonants
  • Quick Report
  • Date Calculator with Calendar
  • Math Calculator with Numerology Functions

Output reports can be exported to RTF format.

System Requirements: Win98 / WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: None
License: Freeware
How to extract:
  1. Download the installer and extract to a temporary folder
  2. Move the contents of {app} to a folder of your choice
  3. Launch jnumb.exe

Euler Math Toolbox v2014-12-03

SYSTEM on 12 Feb 2015

Euler Math Toolbox is a numerical and symbolic math toolbox. Symbolic computation are done by working with Euler's native capabilities and also in conjunction with a seamlessly integrated version of Maxima computer algebra system. Euler Math Toolbox can also be used with LaTeX and Python (integration instructions). Euler Math Toolbox also supports the capabilities of using the built in C compiler (Tiny C) to run C code for important mathematical routines where high performances are required.

The program is developed by a math professor (R. Grothmann) at the University of Eichstätt in Germany. Examples of problems solved with this program.

System Requirements: WinNT / Win2K / WinXP / Vista / Win7 / Win8 / Wine
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
Path portability: Automatic relative path (eg. ..\..\personal\work.doc)
License: GPL
How to extract:
  1. Download the installer and extract to a temporary folder
  2. Move the contents of {app} to a folder of your choice
  3. In this folder, create a new folder named Euler Files
  4. 32-bit: launch euler.exe; or 64-bit: launch euler64.exe
What's new? Full changelog at

SpeQ Mathematics v3.4

webfork on 22 Oct 2016

SpeQ is a lightweight, extensive mathematics program with a simple interface. All calculations are entered in a sheet, where you can add, edit and execute all calculations. You can define variables and functions, as well as plot graphs of your functions.

Calculations can be saved for later use.

System Requirements: Win95 / Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
License: Freeware
How to extract:
  1. Download the ZIP package and extract to a folder of your choice
  2. Launch SpeQ Mathematics.exe
Optionally, delete unneeded language files.
What's new? SpeQ Mathematics 3.4 (Released 2010-04-07)

(new) Function Run(filename) added, which evaluates the contents of a speq file. This way you can easily include a file with your own commonly used variables, functions, and units into all of your worksheets.

(new) Function AddUnit(name {, relation}{,prefixtype}). You can now add your own custom units too.

(new) Operator In for units, "x In unit". This operator is the same as function Convert(x, unit). The operator In supports lists, and the function Convert not. Example usage: "5.1 Inch In Meter", "10 °C In °F", etc.

(new) Function fnSolve(f(x) {, x} {, xstart}), to find zero points of a function.

(new) Binary SI units for calculations with bits and bytes.

(new) Units fully support exponent suffixes now, fore example "mm2" is interpreted as square millimeter, and "m3" as cubic meter.

(new) Added units: Angstrom, mil, sqmil.

(changed) Implicit multiplications with units now have lower precedence than explicit multiplication and division. So for example "12V/6A" is now calculated as "(12*V)/(6*A) = 2 Ohm" instead of "((12*V)/6)*A = 2 W".

(changed) Function factorial (x!) is now much faster for decimal values.

(changed) Some changes in the arrangement of functions and units in the Functions window.

(changed) The accuracy optimizer is improved. For example Cos(90 deg) now gives 0 instead of 7.273641325e-16.

(changed) Adding and subtracting temperatures is now only allowed with the same temperature scale (for example 20 Celsius + 5 Celsius) or in Kelvin (for example 20 Celsius + 5 Kelvin), to prevent conversion issues.

(changed) SpeQ uses a different degree (°) character now, which is supported by more different fonts and by the web. This character is not backwards compatible.

(fixed) Bug with calculating Atan2 and Arg when Angles was set to Degrees or Gradians.

(fixed) SpeQ crashed when you opened more than 9 functions in one graph.

(fixed) Some problems with non-Western fonts.

(fixed) Units: small rounding error in the unit foot and mile.

(fixed) Units Litre and L now support prefixes.

(fixed) Problem loading files with a dot in the name.

(fixed) SpeQ checks now at startup whether the stored window position fits in the current screen dimensions. If not, the position is adjusted.

(fixed) Various stability issues, and other small improvements.
Latest comments
Jarred on 2008-11-20 06:25

This is a true gem in my collection. I don't quite like recent versions (feature creep), but I still use it for 95% of my day to day calculations/graphing.
For everything else there is Python + matplotlib.

Lyx on 2010-04-08 08:52

wanted to give it a try, but removed it 20secs after installation: makes the usual mistakes in setting colors and thus is unreadable on dark desktop colorschemes, and there is no way to manually set the colors.

avi-aryan on 2013-11-10 06:04

simply Great . I like the code-like interface in which it works.

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