"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "src/functions/linear_algebra/matintersect" between
pari-2.13.0.tar.gz and pari-2.13.1.tar.gz

About: PARI/GP is a computer algebra system designed for fast computations in number theory (factorizations, algebraic number theory, elliptic curves...), but also contains a large number of other mathematical functions.

matintersect  (pari-2.13.0):matintersect  (pari-2.13.1)
Function: matintersect Function: matintersect
Section: linear_algebra Section: linear_algebra
C-Name: intersect C-Name: intersect
Prototype: GG Prototype: GG
Help: matintersect(x,y): intersection of the vector spaces whose bases are Help: matintersect(x,y): intersection of the vector spaces whose bases are
the columns of x and y. the columns of x and y.
Doc: $x$ and $y$ being two matrices with the same Doc: $x$ and $y$ being two matrices with the same
number of rows each of whose columns are independent, finds a basis of the number of rows each of whose columns are independent, finds a basis of the
$\Q$-vector space equal to the intersection of the spaces spanned by the vector space equal to the intersection of the spaces spanned by the
columns of $x$ and $y$ respectively. The faster function columns of $x$ and $y$ respectively. The faster function
\tet{idealintersect} can be used to intersect fractional ideals (projective \tet{idealintersect} can be used to intersect fractional ideals (projective
$\Z_K$ modules of rank $1$); the slower but much more general function $\Z_K$ modules of rank $1$); the slower but more general function
\tet{nfhnf} can be used to intersect general $\Z_K$-modules. \tet{nfhnf} can be used to intersect general $\Z_K$-modules.
 End of changes. 2 change blocks. 
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