Z-Calculate is an innovative calculator for students, scientists etc. It combines mathematical power and cool features with a clear and user-friendly interface. Both real and complex numbers are supported. And, best of all, it is completely free!Some features of Z-Calculate:-Supports the most important functions for scientific calculations.-Use as many variables as you want in your calculations. You can change the variables' values effortlessly at any time. -Z-Calculate makes working with complex numbers really easy: calculate any complex expression using the pre-defined constant i and have the absolute, the argument, the real part and the imaginary part displayed.-Tired of results like 0.235294117647059...? No problem, Z-Calculate knows the truth and will display 4/17 instead, if you want. Of course, this also works with Pi/4, Sqrt(3), 17^(5/3)... -Do you need a set of certain values again and again (eg. physical constants)? Then save the values in a variable table and use them again, whenever needed. -Choose between either radian (rad) mode or degree (deg) mode for trigonometrical calculations.