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authorigor175 <igor175@8a072113-8704-0410-8d35-dd094bca7971>2011-12-07 12:38:53 +0000
committerigor175 <igor175@8a072113-8704-0410-8d35-dd094bca7971>2011-12-07 12:38:53 +0000
commit23dffa46c3e3f80dd8495e7ba66a0bc85ea1dbc7 (patch)
tree2fbf447c2bffbad810d1d5ca5b77b2ce1a8dd683 /SRC
parentb7342951d708da1aef2650930c86a32af27587b8 (diff)
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updated comments in dsysv_rook.f and ssysv_rook.f
Diffstat (limited to 'SRC')
-rw-r--r--SRC/dsysv_rook.f13
-rw-r--r--SRC/ssysv_rook.f13
2 files changed, 20 insertions, 6 deletions
diff --git a/SRC/dsysv_rook.f b/SRC/dsysv_rook.f
index 4325cc8e..8dfbb6c0 100644
--- a/SRC/dsysv_rook.f
+++ b/SRC/dsysv_rook.f
@@ -36,7 +36,8 @@
*>
*> \verbatim
*>
-*> DSYSV_ROOK computes the solution to a real system of linear equations
+*> DSYSV_ROOK computes the solution to a real system of linear
+*> equations
*> A * X = B,
*> where A is an N-by-N symmetric matrix and X and B are N-by-NRHS
*> matrices.
@@ -46,8 +47,14 @@
*> A = L * D * L**T, if UPLO = 'L',
*> where U (or L) is a product of permutation and unit upper (lower)
*> triangular matrices, and D is symmetric and block diagonal with
-*> 1-by-1 and 2-by-2 diagonal blocks. The factored form of A is then
-*> used to solve the system of equations A * X = B.
+*> 1-by-1 and 2-by-2 diagonal blocks.
+*>
+*> DSYTRF_ROOK is called to compute the factorization of a real
+*> symmetric matrix A using the bounded Bunch-Kaufman ("rook") diagonal
+*> pivoting method.
+*>
+*> The factored form of A is then used to solve the system
+*> of equations A * X = B by calling DSYTRS_ROOK.
*> \endverbatim
*
* Arguments:
diff --git a/SRC/ssysv_rook.f b/SRC/ssysv_rook.f
index bc19f817..fd0d9432 100644
--- a/SRC/ssysv_rook.f
+++ b/SRC/ssysv_rook.f
@@ -36,7 +36,8 @@
*>
*> \verbatim
*>
-*> SSYSV_ROOK computes the solution to a real system of linear equations
+*> SSYSV_ROOK computes the solution to a real system of linear
+*> equations
*> A * X = B,
*> where A is an N-by-N symmetric matrix and X and B are N-by-NRHS
*> matrices.
@@ -46,8 +47,14 @@
*> A = L * D * L**T, if UPLO = 'L',
*> where U (or L) is a product of permutation and unit upper (lower)
*> triangular matrices, and D is symmetric and block diagonal with
-*> 1-by-1 and 2-by-2 diagonal blocks. The factored form of A is then
-*> used to solve the system of equations A * X = B.
+*> 1-by-1 and 2-by-2 diagonal blocks.
+*>
+*> SSYTRF_ROOK is called to compute the factorization of a real
+*> symmetric matrix A using the bounded Bunch-Kaufman ("rook") diagonal
+*> pivoting method.
+*>
+*> The factored form of A is then used to solve the system
+*> of equations A * X = B by calling SSYTRS_ROOK.
*> \endverbatim
*
* Arguments: