lapy3(3)

lapy33

Lapy3: robust sqrt( x^2 + y^2 + z^2 )

Usage

Functions

double precision function dlapy3 (x, y, z)
DLAPY3 returns sqrt(x2+y2+z2). real function slapy3 (x, y, z)
SLAPY3 returns sqrt(x2+y2+z2).

Detailed Description

Function Documentation

double precision function dlapy3 (double precision x, double precision y, double precision z)

DLAPY3 returns sqrt(x2+y2+z2).

Purpose:

!>
!> DLAPY3 returns sqrt(x**2+y**2+z**2), taking care not to cause
!> unnecessary overflow and unnecessary underflow.
!> 

Parameters

X

!>          X is DOUBLE PRECISION
!> 

Y

!>          Y is DOUBLE PRECISION
!> 

Z

!>          Z is DOUBLE PRECISION
!>          X, Y and Z specify the values x, y and z.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 67 of file dlapy3.f.

real function slapy3 (real x, real y, real z)

SLAPY3 returns sqrt(x2+y2+z2).

Purpose:

!>
!> SLAPY3 returns sqrt(x**2+y**2+z**2), taking care not to cause
!> unnecessary overflow and unnecessary underflow.
!> 

Parameters

X

!>          X is REAL
!> 

Y

!>          Y is REAL
!> 

Z

!>          Z is REAL
!>          X, Y and Z specify the values x, y and z.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 67 of file slapy3.f.

Releases

2 releases since Debian 13 (Trixie); the text changed 1 time.

  1. 13
  2. Arch

Author

Generated automatically by Doxygen for LAPACK from the source code.

From lapack-doc 3.12.1-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.