Pyth

Advanced Commands: angle dist ceil floor sqr pow pyth The following commands are not supported in versions earlier 2.46: anglecmp root logx sin cos

Operators:

Pythagorous Sum Operator BINARY

Returns the hypotenuse formed by the legs of a triangle with lengths the two top values of the stack.

Example:

3 4 pyth

would place 5 on the stack as per $a^2+b^2=c^2$. It basically does

3 3 mult 4 4 mult add sqr

$c = \sqrt{ a^2 + b^2 }$