Add optional matrix::rank() algorighm selection.

[ginac.git] / doc / tutorial / ginac.texi

diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi
index 3ec34c35032d25a78942fa615849b37e1808c353..3742567eca0ba3d331409d7060ea6caafeb0f6d9 100644 (file)
--- a/doc/tutorial/ginac.texi
+++ b/doc/tutorial/ginac.texi
@@ -2172,15 +2172,15 @@ computing determinants, traces, characteristic polynomials and ranks:
 ex matrix::determinant(unsigned algo=determinant_algo::automatic) const;
 ex matrix::trace() const;
 ex matrix::charpoly(const ex & lambda) const;
-unsigned matrix::rank() const;
+unsigned matrix::rank(unsigned algo=solve_algo::automatic) const;
 @end example
 
-The optional @samp{algo} argument of @code{determinant()} allows to
-select between different algorithms for calculating the determinant.
-The asymptotic speed (as parametrized by the matrix size) can greatly
-differ between those algorithms, depending on the nature of the
-matrix' entries.  The possible values are defined in the
-@file{flags.h} header file.  By default, GiNaC uses a heuristic to
+The optional @samp{algo} argument of @code{determinant()} and @code{rank()}
+functions allows to select between different algorithms for calculating the
+determinant and rank respectively. The asymptotic speed (as parametrized
+by the matrix size) can greatly differ between those algorithms, depending
+on the nature of the matrix' entries. The possible values are defined in
+the @file{flags.h} header file. By default, GiNaC uses a heuristic to
 automatically select an algorithm that is likely (but not guaranteed)
 to give the result most quickly.