Here are some tools you can use to help you out!
Patterns in Pascals Triangle (Just run program)
Numerical Integrator (LHR, RHR, etc.)
Numerical Integrator (LHR, RHR, Simpson's, Trapezoidal)
xFunctions (Plots a variety of functions such as parametric, polar, and 3-D)
Polar Coordinates and Graphs 1
Polar Coordinates and Graphs 2