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Algorithms for the $k$-admissible matching number of trees [closed] - ASKSAGE: Sage Q&A Forum

Background and motivation. Let $G$ be a tree, let $M$ be a matching of $G$, and let $k = 1,\dots,\nu(G)$, where $\nu(G)$ denotes the matching number of $G$, i.e. the maximum cardinality of a set of pa...
Questions - ASKSAGE: Sage Q&A Forum

Q&A Forum for Sage
Performance Issues [slow/commands not working] - ASKSAGE: Sage Q&A Forum

I love sage and I think it's the best but I'm having some serious performance issues. Sometimes it takes like up to 15 seconds to compute trivial expressions. Most of the time, after some period of us...

Ask.sagemath.org news digest

5 days

How do I take a Grand sum of a nth dimensional matrix

I'm new to sage so cut me some slack if what I ask sounds uneducated. currently what I'm trying to do is take the tensor product of [z^2+c] over and over than take the grand sum. so like the sum of all elements in the nth dimensional matrix [z^2+c]⊗...
17 days

Polyhedron does not like too much accuracy for vertices

Hijust to point out an oddity.I have to reduce the precision of the vertex location in order to print the tetrahedron. if I comment the line in the code below : tetrahedronLoc=roundMap(tetrahedronLoc,precis=5) I got an error.https://sagecell.sagemath...
20 days

to_poly_solve causes TypeError on certain equations

sage: x, theta = var('x, theta') sage: assume(x > 0, theta >= 0, theta 1 solve(x/cos(theta) == sqrt(sin(theta)), theta, to_poly_solve=true) File /usr/lib/python3.14/site-packages/sage/symbolic/relation.py:1202, in solve(f, explicit_solutions...
21 days

how to restore latex_name

I wonder how to restore the latex_name attribute of a function or variable after saving to a file my code is: fx = function('fxf', latex_name=r'f_x')(y); eq = fx.diff(y)then I save the equation with save(eq,'eq') In a new session I do fx = function(...

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