the mathematical functions ACOS, ASIN, ATAN, COS, COSH, EXP, LN, LOG (identical to LN, natural logarithm), LOG10, MAX, MIN, POW, SIN, SINH, SQRT, TAN, TANH; if two operators are required (MAX, MIN, POW), a semicolon is used for separation, e.g., POW(3;2) which corresponds to 3^2