an unmatched equation solver:

features stand-alone quadratic, cubic, and quartic equation solvers,
solves up to 100th order real-coefficient polynomial equations,
solves up to 50th order complex-coefficient polynomial equations,
creates equations from roots given by the user,
plots customized graphs of functions which display tangent lines,
assembles tables of values and evaluates polynomials,
calculates arclengths of functions between two given points,
differentiates and integrates functions,
allows the user to enter input data from the program or from files,
allows the user to copy and save all output,
has a clean and elegant interface.