graphDS is a graphing calculator application designed for the Nintendo DS.
-Evaluates mathematical expressions... including those with exponents, trig, and logarithmic functions
-Includes a CAS to simplify algebraic expressions, including foiling
-Graphs regular, inverse, parametric, and polar equations, as well as slope fields and Euler's method
-Catalog with many different functions
-Evaluates numerical derivatives and integrals, as well as Riemann sums