NAME

DLAPY2 - return sqrt(x∗∗2+y∗∗2), taking care not to cause unnecessary overflow

SYNOPSIS

DOUBLE PRECISION
FUNCTION DLAPY2( X, Y )

DOUBLE PRECISION X, Y

PURPOSE

DLAPY2 returns sqrt(x∗∗2+y∗∗2), taking care not to cause unnecessary overflow. 
 

ARGUMENTS

X       (input) DOUBLE PRECISION
Y       (input) DOUBLE PRECISION X and Y specify the values x and y.

  —  LAPACK version 2.0  —  08 October 1994