From Armin Richter:
Calculator Pro is a scientific windows calculator that can solve large mathematical terms. Therefore Calculator Pro supports a lot of mathematical calculations i.e. complex numbers, matrices, as well as several unit conversions. Furthermore, Calculator Pro can be used for plotting simple curves, 2-dimensional diagrams, simple animations, etc.. Basically, the Calculator Pro is based on a multi-line text box, which makes the handling very easy and transparent. Also, that text box allows for keeping all carried out calculations present. The Calculator Pro offers a lot of more features, so just test them!
What's new in this version:
Version 2.4.012 features function & data plotting, simple animations, matrix and complex numbers calculations, units conversions, date calculations.