STFMath (ex SunCalculator) is a multipurpose math utility, suitable not only for students, but also for engineers, professors, or anyone interested in math. With STFMath it is possible to:
Graph Mode

•  Draw Cartesian standard or parametric (Y = F1(K), X = F2(K)) and Polar functions.
•  Draw Integral and Average
•  Evaluate function
•  Perform function analyze
•  Calculate intersection of two functions
•  Calculate and preview integral
•  Calculate 1st derivative and average
•  Draw and calculate equation of tangent or normal
•  Save drawn graph as an image (bmp, wmf, jpg), or copy graph to clipboard and paste in external applications
•  Insert textual labels into the graph, print graph or graph history, adjust graph attributes
•  Build a table of values and publish it as HTML
•  Prepare presentation using built-in MathPad, fully functional text editor

Calculators Mode:

•  Perform complex numbers calculations
•  Perform advanced matrix calculations with complex numbers support
•  Perform calculations on geometric figures and objects with Geometry Calculator and Geometry units converter
•  Replace ordinary looking system calculator with Scientific Calculator