Kalkulator is an effective yet easy to use scientific calculator and numerical Swiss Army knife for Windows (in 95 to Windows 8) with many features making it particularly suitable for scientists and engineers, featuring an intuitive interface that makes it easy to manipulate and experiment with its many modules. The Kalkulator Calculator can be integrated into the Windows desktop and accessed through the Start Menu. The calculator runs in a virtual environment created by the administrator. This means that, as long as there is Internet access, any computer with an internet browser can access the Kalkulator Calculator. It can also be used as a Web browser on Windows machines.
The main module of Kalkulator is the polynomial equations editor, a very powerful graphical user interface (GUI) which allows users to enter and edit mathematical expressions in several ways: as text, by using the keyboard shortcut keys, or by pressing the windows button. Furthermore, Kalkulator has also an integrated library of graphing formulas, covering all branches of mathematics and engineering as well as some physics. It also features graphing calculators, support for scientific computation, and function recognition that help in the integration of scientific calculations with programming code. To help users to enter simple mathematical expressions, the Kalkulator Calculator includes a built-in function editor. In addition, the calculator also comes with an extensive library of formulas for trigonometric, binomial, exponential, log, ciprianic, etc.
In order to edit or store complex expressions, a drag and drop feature allows the user defined function to be edited in three dimensions. This feature enables the user defined function to be stored in any shape such as a grid, orthogonal to each other, or any other arbitrary shape. In addition to the edit feature, a click and drag feature allows the user defined function to be dragged and dropped anywhere on the screen. The program can be used as a spreadsheet application as well as a computer calculator.