regularSubdivision?

[Friedemann Groh]

Hello

I'm using version 1.19.1 in WSL and have a problem with regularSubdivion. Even the example in the documentation does not work:

M = matrix {{1,0,1,0},{1,1,0,0}}; 
w = matrix {{1,0,0,1}}; 1 4 o6 : Matrix ZZ <-- ZZ
S = regularSubdivision (M,w)

{{0, 1, 2}, {1, 2, 3}}   (documentation)

{{0, 1, 2}, {0, 1, 3}}   (my version)

Does anybody have an idea what is going wrong here?

Friedemann

[Mahrud Sayrafi]

I'm not sure which package this function belongs to, but your version of M2 is about 2.5 years older than the current 1.24.05, during which time it's entirely possible that something about the function may have changed (either a bug fixed or introduced). Can you try your example on a recent M2 or the web interface? 

Mahrud

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[Friedemann Groh]

Hi Mahrud,

thanks for your reply. It works with the web interface. 

In my Linux subsystem (WSL) for Windows 11, 1.19.1. is the latest M2 version. Do you think that an update is possible here without migrating completely to Linux?

best

Friedemann

[Friedemann Groh]

Hi Mahrud,

This page "https://macaulay2.com/Downloads/GNU-Linux/Ubuntu/index.html" helped me, now I have version 1.24.05 and regualSubdivision works.

Thanks a lot,

Friedemann