Try:
Derivative
Working
Graph of f and its derivative
f(x)
derivative
Syntax: use
^ for powers, * for multiply (2x and 3(x+1) also work).
Functions: sin, cos, tan, sec, csc, cot, asin, acos, atan, sinh, cosh, tanh, ln, log, log2, sqrt, cbrt, exp, abs. Constants: pi, e.