.TH "BLAS/SRC/srotm.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
BLAS/SRC/srotm.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBsrotm\fP (n, sx, incx, sy, incy, sparam)"
.br
.RI "\fBSROTM\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine srotm (integer n, real, dimension(*) sx, integer incx, real, dimension(*) sy, integer incy, real, dimension(5) sparam)"

.PP
\fBSROTM\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
    APPLY THE MODIFIED GIVENS TRANSFORMATION, H, TO THE 2 BY N MATRIX

    (SX**T) , WHERE **T INDICATES TRANSPOSE\&. THE ELEMENTS OF SX ARE IN
    (SX**T)

    SX(LX+I*INCX), I = 0 TO N-1, WHERE LX = 1 IF INCX \&.GE\&. 0, ELSE
    LX = (-INCX)*N, AND SIMILARLY FOR SY USING USING LY AND INCY\&.
    WITH SPARAM(1)=SFLAG, H HAS ONE OF THE FOLLOWING FORMS\&.\&.

    SFLAG=-1\&.E0     SFLAG=0\&.E0        SFLAG=1\&.E0     SFLAG=-2\&.E0

      (SH11  SH12)    (1\&.E0  SH12)    (SH11  1\&.E0)    (1\&.E0  0\&.E0)
    H=(          )    (          )    (          )    (          )
      (SH21  SH22),   (SH21  1\&.E0),   (-1\&.E0 SH22),   (0\&.E0  1\&.E0)\&.
    SEE  SROTMG FOR A DESCRIPTION OF DATA STORAGE IN SPARAM\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIN\fP 
.PP
.nf
          N is INTEGER
         number of elements in input vector(s)
.fi
.PP
.br
\fISX\fP 
.PP
.nf
          SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
.fi
.PP
.br
\fIINCX\fP 
.PP
.nf
          INCX is INTEGER
         storage spacing between elements of SX
.fi
.PP
.br
\fISY\fP 
.PP
.nf
          SY is REAL array, dimension ( 1 + ( N - 1 )*abs( INCY ) )
.fi
.PP
.br
\fIINCY\fP 
.PP
.nf
          INCY is INTEGER
         storage spacing between elements of SY
.fi
.PP
.br
\fISPARAM\fP 
.PP
.nf
          SPARAM is REAL array, dimension (5)
     SPARAM(1)=SFLAG
     SPARAM(2)=SH11
     SPARAM(3)=SH21
     SPARAM(4)=SH12
     SPARAM(5)=SH22
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB96\fP of file \fBsrotm\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.