Feature packed math package. Symbolic algebra; integrate and see explanation, differentiate, factorise polynomials. Solve linear and non-linear equations. Optimise an expression. Five kinds of regression / least squares fit. Plot functions.
Resize photos and rotate pictures with this image manipulation software. Perform image manipulation by opening an image of any format and by choosing the attributes. The user can specify the width, height, overall size, and can also set the DPI.