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| cones in finite dimensional space https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2120 |
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| Author: | Ussein [ Mon Aug 06, 2012 6:45 pm ] |
| Post subject: | cones in finite dimensional space |
Hello, In principle we can define cones in Singular. But I am not being able to do this. Singular is showing me the following : intmat HL[5][3]= . 1,0, 0, . -1,0, 0, . 0,1, 1, . 0,1,-1, . 0,0, 1; > cone c=coneViaRays(HL); ? `cone` is undefined ? error occurred in or before STDIN line 26: `cone c=coneViaRays(HL);` > cone c=coneViaRays(HL); Do I have to upgrade my version for example and how to do it ? do I need to to use a special library for this ? What I need, is to define a cone and find its dual. Thanks for any help |
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| Author: | hannes [ Mon Aug 06, 2012 7:20 pm ] |
| Post subject: | Re: cones in finite dimensional space |
You need Singular in version 3-1-5. Singular -v shoukd display Code: Singular for ix86-Linux version 3-1-5 (3150) Aug 6 2012 18:03:48 with factory(@(#) factoryVersion = 3.1.5),libfac(3.1.3,March 2011), GMP(5.0),NTL(5.5.2),MP(1.1.2.1),32bit,static readline,Plural,fan/cone,DBM, the cone functionality by including " fan/cone" like above. |
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