Skip to content

Add example for is_strongly_unimodular #5

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mkoeppe merged 8 commits into from
Jul 21, 2023
Merged

Add example for is_strongly_unimodular #5

Changes from 1 commit
Commits
Show all changes
8 commits
Select commit Hold shift + click to select a range
5e295b6
test
xuluze Jul 19, 2023
008e05c
remove_trailing_blank
xuluze Jul 19, 2023
6e605bc
pycodestyle
xuluze Jul 19, 2023
0d96f69
Merge branch 'cmr' into cmr_add_examples
xuluze Jul 19, 2023
28bd7be
wip
xuluze Jul 20, 2023
c2a8763
updated_from_pr
xuluze Jul 20, 2023
b78b773
Merge branch 'cmr' into cmr_add_examples
xuluze Jul 21, 2023
8c7c553
add_examples_is_strongly_unimodular
xuluze Jul 21, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 19 additions & 0 deletions src/sage/matrix/matrix_cmr_sparse.pyx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,25 @@ cdef class Matrix_cmr_chr_sparse(Matrix_cmr_sparse):
return result

def is_strongly_unimodular(self):
r"""
Not checked

EXAMPLES::

sage: from sage.matrix.matrix_cmr_sparse import Matrix_cmr_chr_sparse
sage: M = Matrix_cmr_chr_sparse(MatrixSpace(ZZ, 2, 3, sparse=True),
....: [[1, 0, 0], [0, 1, 0]]); M
[1 0 0]
[0 1 0]
sage: M.is_strongly_unimodular()
True
sage: M = Matrix_cmr_chr_sparse(MatrixSpace(ZZ, 2, 3, sparse=True),
....: [[1, 1, 0], [-1, 1, 1]]); M
[ 1 1 0]
[-1 1 1]
sage: M.is_strongly_unimodular()
False
"""
cdef bint result

sig_on()
Expand Down