Regular Functions

abs -absolute value

exp -exponential

int,frac -integer and fractional part of argument

re,im -real and imaginery part of complex num

sqrt,sqr -square root and square

log,ln -logarithms of base 10 and e

H -unit step (1 if x>0 and 0 otherwise)

sgn -sign (-1 if x<0, 0 if x=0, 1 if x>0)

rand -random number from 0 to 1

trigonometric and hyperbolic functions:

sin, cos, tan, csc, sec, cot

sinh, cosh, tanh, csch, sech, coth, ';

arcsin, arccos, arctan, arcsinh, arccosh, arctanh';

constants : pi=3.14159, e=2.71828, i=sqrt(-1) ';

operations : +, -, *, /, ^, ! ';

shortcuts : r=sqrt(x^2+y^2) and c=x+i*y ';

parenthesis: [,{,(,),},]