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LAPACK

NAME¶

lapy2 - lapy2: robust sqrt( x^2 + y^2 )

SYNOPSIS¶

Functions¶

double precision function dlapy2 (x, y)
DLAPY2 returns sqrt(x2+y2). real function slapy2 (x, y)
SLAPY2 returns sqrt(x2+y2).

Detailed Description¶

Function Documentation¶

double precision function dlapy2 (double precision x, double precision y)¶

DLAPY2 returns sqrt(x2+y2).

Purpose:



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


 overflow and unnecessary underflow.

Parameters

X



          X is DOUBLE PRECISION

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.

real function slapy2 (real x, real y)¶

SLAPY2 returns sqrt(x2+y2).

Purpose:



 SLAPY2 returns sqrt(x**2+y**2), taking care not to cause unnecessary


 overflow and unnecessary underflow.

Parameters

X



          X is REAL

Y



          Y is REAL


          X and Y specify the values x and y.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Author¶

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Tue Jan 28 2025 00:54:31

Version 3.12.0