Compare

Given two real numbers $x$ and $y$, compare function is defined as

$\text{compare}(x,y)=\left\{\begin{array}{l}1,\text{ if }x>y\\ -1,\text{ if }x<y\\ 0,\text{ if }x=y\end{array}\right.$

compare(Real, Real)

Description

Given two reals $x$ and $y$, returns its comparison as defined above.