NAME

srotg - Construct a Given’s plane rotation

SYNOPSIS

SUBROUTINE SROTG (A, B, C, S)

void srotg(float ∗sa, float ∗sb, float ∗sc, float ∗s)

REAL    A, B, C, S

PURPOSE

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

PARAMETERS

A      - REAL. 
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      - REAL. 
On entry, B contains the entry to be annihilated in the second vector. Unchanged on exit.

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

Sun, Inc.  —  Last change: 20 Sep 1996