--- rpl/lapack/lapack/dpttrf.f	2010/12/21 13:53:37	1.7
+++ rpl/lapack/lapack/dpttrf.f	2011/07/22 07:38:10	1.8
@@ -1,9 +1,9 @@
       SUBROUTINE DPTTRF( N, D, E, INFO )
 *
-*  -- LAPACK routine (version 3.2) --
+*  -- LAPACK routine (version 3.3.1) --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2006
+*  -- April 2011                                                      --
 *
 *     .. Scalar Arguments ..
       INTEGER            INFO, N
@@ -15,9 +15,9 @@
 *  Purpose
 *  =======
 *
-*  DPTTRF computes the L*D*L' factorization of a real symmetric
+*  DPTTRF computes the L*D*L**T factorization of a real symmetric
 *  positive definite tridiagonal matrix A.  The factorization may also
-*  be regarded as having the form A = U'*D*U.
+*  be regarded as having the form A = U**T*D*U.
 *
 *  Arguments
 *  =========
@@ -28,14 +28,14 @@
 *  D       (input/output) DOUBLE PRECISION array, dimension (N)
 *          On entry, the n diagonal elements of the tridiagonal matrix
 *          A.  On exit, the n diagonal elements of the diagonal matrix
-*          D from the L*D*L' factorization of A.
+*          D from the L*D*L**T factorization of A.
 *
 *  E       (input/output) DOUBLE PRECISION array, dimension (N-1)
 *          On entry, the (n-1) subdiagonal elements of the tridiagonal
 *          matrix A.  On exit, the (n-1) subdiagonal elements of the
-*          unit bidiagonal factor L from the L*D*L' factorization of A.
+*          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 U'*D*U factorization of A.
+*          bidiagonal factor U from the U**T*D*U factorization of A.
 *
 *  INFO    (output) INTEGER
 *          = 0: successful exit
@@ -77,7 +77,7 @@
       IF( N.EQ.0 )
      $   RETURN
 *
-*     Compute the L*D*L' (or U'*D*U) factorization of A.
+*     Compute the L*D*L**T (or U**T*D*U) factorization of A.
 *
       I4 = MOD( N-1, 4 )
       DO 10 I = 1, I4