.TH "sptts2.f" 3 "Wed Oct 15 2014" "Version 3.4.2" "LAPACK" \" -*- nroff -*-
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.SH NAME
sptts2.f \- 
.SH SYNOPSIS
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.SS "Functions/Subroutines"

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.ti -1c
.RI "subroutine \fBsptts2\fP (N, NRHS, D, E, B, LDB)"
.br
.RI "\fI\fBSPTTS2\fP solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf\&. \fP"
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.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine sptts2 (integerN, integerNRHS, real, dimension( * )D, real, dimension( * )E, real, dimension( ldb, * )B, integerLDB)"

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\fBSPTTS2\fP solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf\&.  
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\fBPurpose: \fP
.RS 4

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.nf
 SPTTS2 solves a tridiagonal system of the form
    A * X = B
 using the L*D*L**T factorization of A computed by SPTTRF.  D is a
 diagonal matrix specified in the vector D, L is a unit bidiagonal
 matrix whose subdiagonal is specified in the vector E, and X and B
 are N by NRHS matrices.
.fi
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.RE
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\fBParameters:\fP
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\fIN\fP 
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          N is INTEGER
          The order of the tridiagonal matrix A.  N >= 0.
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\fINRHS\fP 
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          NRHS is INTEGER
          The number of right hand sides, i.e., the number of columns
          of the matrix B.  NRHS >= 0.
.fi
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\fID\fP 
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          D is REAL array, dimension (N)
          The n diagonal elements of the diagonal matrix D from the
          L*D*L**T factorization of A.
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\fIE\fP 
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.nf
          E is REAL array, dimension (N-1)
          The (n-1) subdiagonal elements of the unit bidiagonal factor
          L from the L*D*L**T factorization of A.  E can also be regarded
          as the superdiagonal of the unit bidiagonal factor U from the
          factorization A = U**T*D*U.
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\fIB\fP 
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          B is REAL array, dimension (LDB,NRHS)
          On entry, the right hand side vectors B for the system of
          linear equations.
          On exit, the solution vectors, X.
.fi
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\fILDB\fP 
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          LDB is INTEGER
          The leading dimension of the array B.  LDB >= max(1,N).
.fi
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.RE
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\fBAuthor:\fP
.RS 4
Univ\&. of Tennessee 
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Univ\&. of California Berkeley 
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Univ\&. of Colorado Denver 
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NAG Ltd\&. 
.RE
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\fBDate:\fP
.RS 4
September 2012 
.RE
.PP

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Definition at line 103 of file sptts2\&.f\&.
.SH "Author"
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Generated automatically by Doxygen for LAPACK from the source code\&.