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NAME
     srotg - Construct a Given's plane rotation

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

     REAL    A, B, C, S



     #include <sunperf.h>

     void srotg(float *sa, float *sb, float *sc, float *s) ;

PURPOSE
     SROTG - Construct a Given's plane rotation that will annihi-
     late 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.

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