Math expressions calculator :
This node handles most mathematical operators and functions.
Operators:
+, -, *, /, ^, %
Functions:
sqrt, sin, cos, tan, atan, acos, asin,
acotan, exp, ln, 10log, fac, sinh, cosh,
tanh, abs, ceil, floor, sfac, round, fpart
Logical:
!, ==, !=, ||, &&, >, < , >=, <=,
Return Value for boolean operations :
0 - FALSE
1 - TRUE