Macaulay2

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anoot yadav, Lira Silva3

1:46 PM

Regarding calculation on Hilbert series.

Can you explain with some examples? I am unable to understand why the Hilbert series computed by

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Regarding calculation on Hilbert series.

Can you explain with some examples? I am unable to understand why the Hilbert series computed by

1:46 PM

Michael Perlman

Mar 15

Workshop Announcement: Macaulay2 at Minnesota

Dear Colleagues, On behalf of the organizers, I am happy to announce the upcoming Macaulay2 Workshop

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Workshop Announcement: Macaulay2 at Minnesota

Dear Colleagues, On behalf of the organizers, I am happy to announce the upcoming Macaulay2 Workshop

Mar 15

Olga Kuznetsova, Doug Torrance2

Mar 13

Topcom is down

The URL for TOPCOM changed a few months ago. You can find it now at: https://www.wm.uni-bayreuth.de/

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Topcom is down

The URL for TOPCOM changed a few months ago. You can find it now at: https://www.wm.uni-bayreuth.de/

Mar 13

Michelle, jche...@gmail.com5

Mar 11

find eigenvectors symbolically

Hi Justin, Thank you! Nice to see you, too! On Saturday, March 11, 2023 at 5:35:36 PM UTC-5 jche...@

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find eigenvectors symbolically

Hi Justin, Thank you! Nice to see you, too! On Saturday, March 11, 2023 at 5:35:36 PM UTC-5 jche...@

Mar 11

Jonas Ehrhard, … Torrance, Douglas4

Mar 2

Evaluate a polynomial at an element

Thank you two, that is helpful! Doug Torrance schrieb am Donnerstag, 2. März 2023 um 16:54:26 UTC+1:

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Evaluate a polynomial at an element

Thank you two, that is helpful! Doug Torrance schrieb am Donnerstag, 2. März 2023 um 16:54:26 UTC+1:

Mar 2

Mughees Ghayas, … Rizwan Jahangir3

Feb 28

Depth of a module

Dear Mughees, Depth itself is a package. Load it with loadPackage "Depth" before using

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Depth of a module

Dear Mughees, Depth itself is a package. Load it with loadPackage "Depth" before using

Feb 28

Michelle, Tim Duff3

Feb 19

ring extension then elimination

Thank you! On Sunday, February 19, 2023 at 6:17:35 PM UTC-5 Tim Duff wrote: Hi Michelle, I think you

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ring extension then elimination

Thank you! On Sunday, February 19, 2023 at 6:17:35 PM UTC-5 Tim Duff wrote: Hi Michelle, I think you

Feb 19

Luke Oeding, ztei...@boisestate.edu2

Feb 15

differentiating Products

Will this work? diff(RingElement,Product) := (d,p) -> sum(toList(apply(#p, k -> Product insert(

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differentiating Products

Will this work? diff(RingElement,Product) := (d,p) -> sum(toList(apply(#p, k -> Product insert(

Feb 15

Anton

Feb 10

REU at Georgia Tech

To those who know (or are) talented undergraduate students, Please advertise (or consider) an REU

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REU at Georgia Tech

To those who know (or are) talented undergraduate students, Please advertise (or consider) an REU

Feb 10

Diane Maclagan

Feb 8

Warwick Computational Algebraic Geometry Workshop

Dear all, We are organizing a small workshop on Computational Algebraic Geometry, 27-31 March 2023,

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Warwick Computational Algebraic Geometry Workshop

Dear all, We are organizing a small workshop on Computational Algebraic Geometry, 27-31 March 2023,

Feb 8

David Eisenbud, Mahrud Sayrafi2

Feb 5

bug taking rows of matrices

I've also noticed a possibly related bug in the target, which is always forced to be free: S = ZZ

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bug taking rows of matrices

I've also noticed a possibly related bug in the target, which is always forced to be free: S = ZZ

Feb 5

Anton

Jan 22

MAAG 2023 and Macaulay2 Day

Dear applied and computational algebraists and geometers, We are happy to announce the return of MAAG

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MAAG 2023 and Macaulay2 Day

Dear applied and computational algebraists and geometers, We are happy to announce the return of MAAG

Jan 22

Chris Dare, Greg2

Jan 12

Convert CoherentSheaf to Complex concentrated in deg 0

Dear Chris, Currently, the Complexes package only supports chain complexes formed by modules over a

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Convert CoherentSheaf to Complex concentrated in deg 0

Dear Chris, Currently, the Complexes package only supports chain complexes formed by modules over a

Jan 12

iqra khan, Tim Duff2

Jan 10

Extract rows from the relation matrix of Distributive Lattice

Looks like the following would work: needsPackage "Posets" P = poset{{1,2},{3}} D =

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Extract rows from the relation matrix of Distributive Lattice

Looks like the following would work: needsPackage "Posets" P = poset{{1,2},{3}} D =

Jan 10

Eamon Quinlan-Gallego, … Mahrud Sayrafi4

Jan 4

Dmodules - values of the b-function

Shouldn't calling "use ring b" or "use S" define s globally? i7 : use S o7 =

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Dmodules - values of the b-function

Shouldn't calling "use ring b" or "use S" define s globally? i7 : use S o7 =

Jan 4

David Eisenbud, Frank Moore3

Jan 3

Bug in DGAlgebras ?

Thanks! -- David-- David Eisenbud Professor of Mathematics University of California Berkeley www.msri

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Bug in DGAlgebras ?

Thanks! -- David-- David Eisenbud Professor of Mathematics University of California Berkeley www.msri

Jan 3

Chris Dare, Devlin Mallory2

12/26/22

efficient way to compute anti-canonical bundle

Hello Chris, The “Divisor” package does a great job of this: loadPackage(“Divisor”) KX=

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efficient way to compute anti-canonical bundle

Hello Chris, The “Divisor” package does a great job of this: loadPackage(“Divisor”) KX=

12/26/22

Chris Dare, H XW2

12/22/22

Check smoothness of GM threefold

Chris, If singularLocus uses the Jacobian criterion, it is rather time consuming in computing the

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Check smoothness of GM threefold

Chris, If singularLocus uses the Jacobian criterion, it is rather time consuming in computing the

12/22/22

Daniel R. Grayson

12/21/22

Macaulay2 1.21 released

Dear Macaulay2 user, We are happy to announce the release of Macaulay2, version 1.21. For the list of

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Macaulay2 1.21 released

Dear Macaulay2 user, We are happy to announce the release of Macaulay2, version 1.21. For the list of

12/21/22

Madalina Erascu, Federico Galetto6

12/18/22

From permutations to ring of invariants

I don't think so Cheers On Saturday, December 17, 2022 at 2:01:40 AM UTC-5 madalin...@e-uvt.ro

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From permutations to ring of invariants

I don't think so Cheers On Saturday, December 17, 2022 at 2:01:40 AM UTC-5 madalin...@e-uvt.ro

12/18/22

Wen-Ding Li, … Daniel R. Grayson8

12/12/22

Support for Large Prime Field

Maybe we should verify that p is actually prime before applying toField to ZZ[ ]/p. We could also do

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Support for Large Prime Field

Maybe we should verify that p is actually prime before applying toField to ZZ[ ]/p. We could also do

12/12/22

Xiaowen Hu, … Mike Cummings4

11/23/22

How to write to a file without deleting the previous content?

openOutAppend works. Thank you very much, Doug and Mike. Best, Xiaowen Mike Cummings <mgacummings@

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How to write to a file without deleting the previous content?

openOutAppend works. Thank you very much, Doug and Mike. Best, Xiaowen Mike Cummings <mgacummings@

11/23/22

Roser Homs Pons, Tim Duff3

11/22/22

Substituting numerical solutions to equations doesn't give 0

Hi Roser, I think the solution that's computed internally by EigenSolver (and for that matter,

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Substituting numerical solutions to equations doesn't give 0

Hi Roser, I think the solution that's computed internally by EigenSolver (and for that matter,

11/22/22

Sara Muli

11/11/22

Macaulay2 vs Singular

Dear all, I will make a presentation at a Computer Algebra System Seminar. I have to present

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Macaulay2 vs Singular

Dear all, I will make a presentation at a Computer Algebra System Seminar. I have to present

11/11/22

Candid Pleasure, … Paul Zinn-Justin8

11/10/22

Copying Macaulay2 input and output to latex

I wrote a package for that: MergeTeX see eg https://www.unimelb-macaulay2.cloud.edu.au/usr/share/doc/

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Copying Macaulay2 input and output to latex

I wrote a package for that: MergeTeX see eg https://www.unimelb-macaulay2.cloud.edu.au/usr/share/doc/

11/10/22

Sara Muli, Daniel R. Grayson5

11/10/22

basic information

I've never been a Singular user, so it would be better to ask one. Maybe start a new topic here

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basic information

I've never been a Singular user, so it would be better to ask one. Maybe start a new topic here

11/10/22

Moty Katzman, Michael Burr2

11/10/22

A REALLY weird bug in a recursive function

I think that you might want a lot of your "{" and "}" to be "(" and

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A REALLY weird bug in a recursive function

I think that you might want a lot of your "{" and "}" to be "(" and

11/10/22

Samir Canning

11/1/22

memory issue when forming projective bundle with Schubert2

I need to compute a codimension 16 Chow class that I obtain from pushing forward a class on a

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memory issue when forming projective bundle with Schubert2

I need to compute a codimension 16 Chow class that I obtain from pushing forward a class on a

11/1/22

Daniel R. Grayson

10/31/22

forthcoming release 1.21

Dear Macaulay2 authors and workshop participants, Thank you all for your work for the mathematical

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forthcoming release 1.21

Dear Macaulay2 authors and workshop participants, Thank you all for your work for the mathematical

10/31/22

naddi...@gmail.com, Mahrud Sayrafi2

10/12/22

random element of an ideal

Hi Nick, I actually like your way a lot! I had a snippet that frontloads the work of finding a basis

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random element of an ideal

Hi Nick, I actually like your way a lot! I had a snippet that frontloads the work of finding a basis

10/12/22