Computing: Free Pascal Programming

Simple complex numbers calculator.


Download SimpleCplxCalculator desktop application (Windows 64bit) Download SimpleCplxCalculator source code (Lazarus/Free Pascal)

Description: Very simple calculator application, that may be used to perform basic arithmetic operations (add, subtract, multiply, divide) with complex numbers.
To enter a complex number a = x+yi, proceed as follows:

  1. Enter its real part x, just as you would enter any real number.
  2. Start entering the imaginary part by pushing the "+i" or "-i" button (depending on the imaginary part's sign).
  3. Enter the imaginary part y (as you would do for a positive real number).
The sign of the complexes real part may be changed, using the "+/-" button. To change the sign of the imaginary part, you may use the conjugate function ("ā" button).
Memory and Clear buttons work exactly the same way as they do on a standard calculator.

Possible extensions: Make the application a "real" calculator by adding functions, complex format conversion...

Note: The application uses the "UComplex" unit, downloaded from GitHub.

Free Pascal features: Basic controls: Menus, push buttons, edit fields. Using the UComplex unit to work with complex numbers.

Screenshot:

Simple complex numbers calculator PC application

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