Changeset 27840 for branches/simtest_nebulous_branches/psLib/src/math/psMatrix.h

Timestamp:

May 3, 2010, 8:50:52 AM (16 years ago)

Author:

eugene

Message:

updates from trunk

Location:

branches/simtest_nebulous_branches

Files:

• . (modified) (1 prop)
• psLib/src/math/psMatrix.h (modified) (2 diffs)

branches/simtest_nebulous_branches/psLib/src/math/psMatrix.h

@@ -66 +66 @@
  */
 psImage *psMatrixLUInvert(
-    psImage *out,                  ///< place result here if not NULL
-    const psImage* LU,             ///< LU-decomposed matrix.
-    const psVector* perm           ///< Permutation vector resulting from psMatrixLUD function.
+    psImage *out,                  ///< place result here if not NULL
+    const psImage* LU,             ///< LU-decomposed matrix.
+    const psVector* perm           ///< Permutation vector resulting from psMatrixLUD function.
 );
 
@@ -186 +186 @@
 );
 
-/// Single value decomposition, provided by Andy Becker
-psImage *psMatrixSVD(psImage* evec, psVector* eval, const psImage* in);
+/// Solve a matrix equation using Singular Value Decomposition
+///
+/// Solves Ax = b for x
+psVector *psMatrixSolveSVD(
+    psVector *solution,                 ///< Solution to output, or NULL
+    const psImage *matrix,              ///< Matrix to be solved
+    const psVector *vector,             ///< Vector of values
+    float thresh                        ///< Threshold relative to maximum for trimming singular values
+    );
+
+/// Single value decomposition (original by Andy Becker, updated by EAM)
+bool psMatrixSVD(psImage **U, psVector **w, psImage **V, const psImage *A);
 
 /// @}