LAPACK  3.7.0
LAPACK: Linear Algebra PACKage

§ dlapy2()

double precision function dlapy2 ( double precision  X,
double precision  Y 
)

DLAPY2 returns sqrt(x2+y2).

Download DLAPY2 + dependencies [TGZ] [ZIP] [TXT]

Purpose:
 DLAPY2 returns sqrt(x**2+y**2), taking care not to cause unnecessary
 overflow.
Parameters
[in]X
          X is DOUBLE PRECISION
[in]Y
          Y is DOUBLE PRECISION
          X and Y specify the values x and y.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
December 2016