Macaulay2 / Macaulay2/M2

direct sum operation ignores degrees

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#1,060 1 comment 0 reactions 1 assignee View on GitHub

@mikestillman is already working on this.

Since Dec 8, 2019.

Core
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Macaulay2
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Description

```
Macaulay2, version 1.15
--loading configuration for package "FourTiTwo" from file /Users/dan/Library/Application Support/Macaulay2/init-FourTiTwo.m2
--loading configuration for package "Topcom" from file /Users/dan/Library/Application Support/Macaulay2/init-Topcom.m2
with packages: ConwayPolynomials, Elimination, IntegralClosure, InverseSystems, LLLBases, PrimaryDecomposition, ReesAlgebra, TangentCone, Truncations

i1 : R = QQ[x]

o1 = R

o1 : PolynomialRing

i2 : B = map(R^1, R^1,x, Degree =>{1})

o2 = | x |

1 1
o2 : Matrix R <--- R

i3 : isHomogeneous B

o3 = true

i4 : isHomogeneous (B++B)

o4 = false
```

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