NAME

crotg - Construct a Given’s plane rotation

SYNOPSIS

SUBROUTINE CROTG (A, B, C, S)

COMPLEX    A, B, S REAL       C

#include <sunperf.h>

void crotg(complex ∗ca, complex ∗cb, float ∗sc, complex ∗s) ;

PURPOSE

CROTG - Construct a Given’s plane rotation that will annihilate an element of a vector. 
 

PARAMETERS

A - COMPLEX. 
On entry, A contains the entry in the first vector that corresponds to the element to be annihilated in the second vector. Unchanged on exit.

B - COMPLEX. 
On entry, B contains the entry to be annihilated in the second vector.

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

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

SunOS 5.0  —  Last change: 10 Dec 1998