(S|D)LAPY2

Single and double LAPY2.

Description

While avoiding overflow, computes:

\result = \sqrt{X^2 + Y^2}

LAPACK Interface

float slapy2(const float *X, const float *Y);

double dlapy2(const double *X, const double *Y);

Arguments

X X component of vector
Y Y component of vector
Result Magnitude of vector