crotg (3p)

Name

crotg - Construct a Given's plane rotation

Synopsis

SUBROUTINE CROTG(A, B, C, S)

COMPLEX A, B, S
REAL C

SUBROUTINE CROTG_64(A, B, C, S)

COMPLEX A, B, S
REAL C




F95 INTERFACE
SUBROUTINE ROTG(A, B, C, S)

COMPLEX :: A, B, S
REAL :: C

SUBROUTINE ROTG_64(A, B, C, S)

COMPLEX :: A, B, S
REAL :: C




C INTERFACE
#include <sunperf.h>

void crotg(complex *a, complex *b, float *c, complex *s);

void crotg_64(complex *a, complex *b, float *c, complex *s);

Description

Oracle Solaris Studio Performance Library                            crotg(3P)



NAME
       crotg - Construct a Given's plane rotation


SYNOPSIS
       SUBROUTINE CROTG(A, B, C, S)

       COMPLEX A, B, S
       REAL C

       SUBROUTINE CROTG_64(A, B, C, S)

       COMPLEX A, B, S
       REAL C




   F95 INTERFACE
       SUBROUTINE ROTG(A, B, C, S)

       COMPLEX :: A, B, S
       REAL :: C

       SUBROUTINE ROTG_64(A, B, C, S)

       COMPLEX :: A, B, S
       REAL :: C




   C INTERFACE
       #include <sunperf.h>

       void crotg(complex *a, complex *b, float *c, complex *s);

       void crotg_64(complex *a, complex *b, float *c, complex *s);



PURPOSE
       crotg  Construct  a Given's plane rotation that will annihilate an ele-
       ment of a vector.


ARGUMENTS
       A (input/output)
                 On entry, A contains the entry in the first vector that  cor-
                 responds  to the element to be annihilated in the second vec-
                 tor.  On exit, contains the nonzero element  of  the  rotated
                 vector.


       B (input)
                 On  entry, B contains the entry to be annihilated in the sec-
                 ond vector.  Unchanged on exit.


       C (output)
                 On exit, C and S are the elements of the rotation matrix that
                 will be applied to annihilate B.


       S (output)
                 On exit, C and S are the elements of the rotation matrix that
                 will be applied to annihilate B.




                                  7 Nov 2015                         crotg(3P)