Mathematical functions

Hello Rooters:
I have one simple question. How do you write the absolute value of an expression. Recalling that in Fortran, the symbol is something like Abs. Where can one find a description of most frequently used mathematical functions.
Thank you,


Hi karla,
check also
all (most of them) these functions are available from interpreter.

Regards. Valeriy

For a description of the ROOT math functions, see