NiCalc

NiCalc is a simple calculator written in Nim using NiGui.

Supported elements

The input term may consist of:

• Rational numbers

  • Decimal point: .
  • Digit grouping: ,, _

• Arithmetic operators: +, -, *, /, ^ (power)

• Brackets: (, )

• Functions:

  • abs()
  • ceil()
  • cos()
  • floor()
  • ln()
  • log2()
  • round()
  • sin()
  • sqrt()
  • tan()

• Constants:

  • pi
  • e

Example:

Input: ($2^{16}$+2*3-sin(pi))/2
Result: 32,771

Keyboard commands

• Return - Add calculation to history
• Escape - Quit

Screenshots

Compile

cd src
nimble install nigui
nim c NiCalc.nim
./NiCalc

Download

• Binary downloads for Windows and Linux
• macOS users can try the Gtk version or wait for native macOS support

History

• Version 1.0 (2017-07-02) - First release
• Version 1.1 (2017-08-09) - Fixed handling of brackets, added "abs()" function
• Version 1.2 (2018-01-02) - Fixed handling of brackets

License

NiCalc is FLOSS (free/libre and open-source software).
All files in this repository are licensed under the GNU General Public License version 3 (GPLv3).
Copyright 2017-2020 Simon Krauter