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SpeedCrunch Calculator

SpeedCrunch Calculator.

SpeedCrunch calculator is a fast, high precision and powerful open source desktop calculator, written in C++.

SpeedCrunch is easy to use, just type the expression that you want to calculate and press Enter. The result is shown in the scrollable display. You can quickly copy the last calculation result to the clipboard using Ctrl+R.

Extcalc, Scientific Graphic Calculator

Extcalc, Scientific Graphic Calculator.

Extcalc is a scientific graphic calculator released under an open source license.

Extcalc is able to process difficult mathematical functions, to draw graph and to work with them. All standard mathematical operations can be calculated using its attractive graphical frontend, together with more advanced mathematics including calculus.