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64 Commits

Author SHA1 Message Date
Gael Guennebaud
8ce4503494 add support for read/write sub sets of inner vectors (sparse module) 2009-01-27 22:48:17 +00:00
Gael Guennebaud
e7c48fac9b sparse module: makes -= and += operator working 
Question 1: why are *=scalar and /=scalar working right away ?
Same weirdness in DynamicSparseMatrix where operators += and -= work wihout
  having to redefine them ???
 2009-01-23 13:59:32 +00:00
Gael Guennebaud
6a722602e6 fix a few remaining warnings 
and fix commainitializer unit test with MSVC
 2009-01-23 12:26:32 +00:00
Gael Guennebaud
d3dcb04f2d * fix compilation with gcc 3.4 
* add an option to disable Qt testing
 2009-01-23 09:50:16 +00:00
Gael Guennebaud
52cf07d266 sparse module: 
* add row(i), col(i) functions
* add prune() function to remove small coefficients
 2009-01-21 18:46:04 +00:00
Gael Guennebaud
178858f1bd add a flexible sparse matrix class designed for fast matrix assembly 2009-01-19 15:20:45 +00:00
Gael Guennebaud
ccdcebcf03 Sparse module: add support for sparse selfadjoint * dense 2009-01-15 18:52:14 +00:00
Gael Guennebaud
9a4b7998cf Sparse module: add row/col methods to the iterators 2009-01-15 14:16:41 +00:00
Gael Guennebaud
87241089e1 Sparse module: bugfix in SparseMatrix::resize(), now the indices are 
correctly initialized to 0.
 2009-01-15 13:30:50 +00:00
Gael Guennebaud
2d53466fa9 Sparse module: 
* improved performance of mat*=scalar
* bug fix in cwise*
 2009-01-14 21:27:54 +00:00
Gael Guennebaud
0b606dcccd Add support for sparse * dense and dense * sparse matrix/vector products 2009-01-14 17:41:55 +00:00
Gael Guennebaud
c4c70669d1 Big rewrite in the Sparse module: SparseMatrixBase no longer inherits MatrixBase. 
That means a lot of features which were available for sparse matrices
via the dense (and super slow) implemention are no longer available.
All features which make sense for sparse matrices (aka can be implemented efficiently) will be
implemented soon, but don't expect to see an API as rich as for the dense path.
Other changes:
* no block(), row(), col() anymore.
* instead use .innerVector() to get a col or row vector of a matrix.
* .segment(), start(), end() will be back soon, not sure for block()
* faster cwise product
 2009-01-14 14:24:10 +00:00
Gael Guennebaud
5015e48361 Sparse module: add a more flexible SparseMatrix::fillrand() function 
which allows to fill a matrix with random inner coordinates (makes sense
only when a very few coeffs are inserted per col/row)
 2008-12-11 18:26:24 +00:00
Gael Guennebaud
86ccd99d8d Several improvements in sparse module: 
* add a LDL^T factorization with solver using code from T. Davis's LDL
  library (LPGL2.1+)
* various bug fixes in trianfular solver, matrix product, etc.
* improve cmake files for the supported libraries
* split the sparse unit test
* etc.
 2008-11-05 13:47:55 +00:00