The best scientific graphing calculator. You can draw multiple functions, calculate derivatives, intersections, maxima / minima, inflection points, tables of values, specific values, definite integrals, functions and intersections can convert degrees to radians and vice versa.Il supports sinus , cosine, tangent, sine / cosine, tanh, asin, acos, atan, coth, cot, acot, roots, e, pi and x. Compatible with S^3 / Anna / Belle Smart Phones.