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2025-03-04 12:22:24 +0100 commented answer Test if a graph has a claw-decomposition

Interesting! Thanks for the remark!

2025-03-04 12:20:30 +0100 answered a question plotting graphs, vertices on some graphs are very small

Alternatively, in the Jupyter notebook, if graphviz + dot2tex are installed, here is what you can obtain: It is a fea

2025-02-27 13:07:11 +0100 commented answer Test if a graph has a claw-decomposition

See https://github.com/sagemath/sage/pull/39598 for adding in SageMath the decomposition into any subgraphs.

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2025-02-24 16:47:15 +0100 edited answer Test if a graph has a claw-decomposition

This is a typical universal cover problem which can be solved using Knuth dancing links' algorithm: def has_claw_decomp

2025-02-24 16:28:32 +0100 edited answer Test if a graph has a claw-decomposition

This is a typical universal cover problem which can be solved using Knuth dancing links' algorithm: def has_claw_decomp

2025-02-24 16:25:43 +0100 answered a question Test if a graph has a claw-decomposition

This is a typical universal cover problem which can be solved using Knuth dancing links' algorithm: def has_claw_decomp

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2024-11-29 21:26:15 +0100 edited answer Use of Tiling solver for the Soma cube ?

The seven pieces are said to be different on the Cube Soma Wikipedia page, but you have defined P5 and P6 to be the same

2024-11-29 21:13:59 +0100 edited answer Use of Tiling solver for the Soma cube ?

The seven pieces are said to be different on the Cube Soma Wikipedia page, but you have defined P5 and P6 to be the same

2024-11-29 21:06:30 +0100 edited answer Use of Tiling solver for the Soma cube ?

The seven pieces are said to be different on the Cube Soma Wikipedia page, but you have defined P5 and P6 to be the same

2024-11-29 21:05:48 +0100 answered a question Use of Tiling solver for the Soma cube ?

The seven pieces are said to be different on the Wikipedia page, but you have defined P5 and P6 to be the same: P5 = Po

2024-10-15 12:24:40 +0100 commented question How to specify dashed edges in SageMath?

As shown in the documentation of g.plot, you may use edge_style='dashed'. But unfortunately, it plots every edge to be d

2024-10-15 12:23:24 +0100 commented question How to specify dashed edges in SageMath?

As shown in the documentation of g.plot, you may use edge_style='dashed'. But unfortunately, it plots every edge to be d

2024-10-15 12:22:34 +0100 commented question How to specify dashed edges in SageMath?

As shown in the documentation of g.plot, you may use edge_style='dashed'. But unfortunately, it plots every edge to be d

2024-10-15 12:21:47 +0100 commented question How to specify dashed edges in SageMath?

As shown in the documentation of G.plot, you may use edge_style='dashed'. But unfortunately, it plots every edge to be d

2024-10-15 12:13:22 +0100 edited answer Cannot transpose the matrix with x.transpose()

I don't understand the error either, but this is what one may do: sage: A = matrix(2,3,[8,-2,3,5,1,-4]) sage: A [ 8 -2

2024-10-15 12:13:04 +0100 answered a question Cannot transpose the matrix with x.transpose()

I don't understand the error either, but this is what one should do: sage: A = matrix(2,3,[8,-2,3,5,1,-4]) sage: A [ 8

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2024-06-14 09:26:52 +0100 commented question Building documentation raises error 'no module named sage_autodoc'

You may need to adapt the autogenerated conf.py file. For instance, here is what I wrote in lines 25-28: sys.path.appen

2024-06-12 22:21:48 +0100 commented question Building documentation raises error 'no module named sage_autodoc'

Or maybe the Sphinx installed within SageMath 9.5 is not built with optional extensions like sage_autodoc? Is this the s

2024-06-12 19:13:41 +0100 commented answer Stanley-Reisner ideal from polytope

There is a normal_fan method for polytopes. Also, you may read this quick tutorial or this longer introduction on polyto

2024-06-12 15:32:34 +0100 edited answer Stanley-Reisner ideal from polytope

The Stanley_Reisner_ideal function exists in SageMath for a rational polyhedral fan : sage: fan = Fan([[0,1,3], [3,4],

2024-06-12 15:32:24 +0100 edited answer Stanley-Reisner ideal from polytope

The Stanley_Reisner_ideal function exists in SageMath for a rational polyhedral fan : sage: fan = Fan([[0,1,3], [3,4],

2024-06-12 15:31:36 +0100 edited answer Stanley-Reisner ideal from polytope

The Stanley_Reisner_ideal function exists in SageMath for a rational polyhedral fan : sage: fan = Fan([[0,1,3], [3,4],

2024-06-12 15:26:06 +0100 edited answer Stanley-Reisner ideal from polytope

The Stanley_Reisner_ideal function exists in SageMath for a rational polyhedral fan : sage: fan = Fan([[0,1,3], [3,4],

2024-06-12 15:24:22 +0100 edited answer Stanley-Reisner ideal from polytope

The Stanley_Reisner_ideal function exists in SageMath for a rational polyhedral fan or for the toric variety associated

2024-06-12 15:23:51 +0100 answered a question Stanley-Reisner ideal from polytope

The Stanley_reisner_ideal function exists in SageMath for a rational polyhedral fan or for the toric variety associated

2024-06-11 12:47:00 +0100 edited answer How to compute the different ideal of a number field extension in Sage?

For the easier example, you may do: sage: x=polygen(ZZ, 'x') sage: K.<a>=NumberField(x^2+5) sage: K.different() F

2024-06-11 12:15:20 +0100 answered a question How to compute the different ideal of a number field extension in Sage?

For the easier example, you may do: sage: x=polygen(ZZ, 'x') sage: K.<a>=NumberField(x^2+5) sage: K.different() F

2024-06-11 12:10:48 +0100 commented question How to compute the different ideal of a number field extension in Sage?

If you want to list methods of K containing the word "ideal", you may do: sage: K.*ideal*? K.fractional_ideal K.ideal K

2024-06-10 16:00:50 +0100 commented question Building documentation raises error 'no module named sage_autodoc'

I do run make doc within sage -sh for building the documentation of my package

2024-06-10 16:00:04 +0100 commented question Building documentation raises error 'no module named sage_autodoc'

I do run make doc within sage -sh for building the documentation of my package: https://gitlab.com/seblabbe/slabbe/-/blo

2024-06-10 15:54:39 +0100 commented question How to compute the different ideal of a number field extension in Sage?

In Sage/Python, you need to add the parenthesis to "call" the function. Without the parenthesis, it returns the function

2024-06-10 14:34:53 +0100 commented question Computing triangulations fails

I created issue #38187 on github

2024-06-10 14:33:57 +0100 commented question Computing triangulations fails

I created a issue on github here : https://github.com/sagemath/sage/issues/38187

2024-06-10 14:00:29 +0100 commented question Computing triangulations fails

In my case, on my recent laptop, it's not me that kills it. The operation kills itself after less than 1 second. On my

2024-06-10 13:57:47 +0100 commented question Computing triangulations fails

In my case, it's not me that kills it. The operation kills itself after less than 1 second.

2024-06-06 22:31:28 +0100 commented question Computing triangulations fails

I can confirm I have the same issue on SageMath version 10.2: sage: # define p_fine as above sage: it = p_fine.triangul

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2024-05-27 14:40:21 +0100 edited answer It's really hard to build sage... why???

First, we need to thank you for taking the time to share this experience and asking this question. I think we need more

2024-05-27 14:33:08 +0100 answered a question It's really hard to build sage... why???

First, we need to thank you for taking the time to share this experience and asking this question. I think we need more