SymDiff is program that computes the first derivative of a given function and tries to find simpler form. The output function is then displayed in a pretty, easily readable form. Simplification means that SymDiff tries various procedures to find the most common and the shortest form of expression. Supported operators and functions: +, -, *, /, ^ (power), square root (sqrt), cube root (curt) Absolute value (abs), signum (sign) Natural logarithm (ln), exponential (exp) Goniometric (sin, cos, tan, cot), inverse goniometric (asin, acos, atan, acot) Hyperbolic (sinh, cosh, tanh, coth), inverse hyperbolic (asinh, acosh, atanh, acoth)