Lift and promote with MutableMatrix not completely implemented
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@mikestillman is already working on this.
Since Jan 10, 2017.
Core
Linear Algebra
- Dominant language
- Macaulay2
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- 435
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- 297
- Avg merge
- 4d 20h
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- 11
Description
```
R = QQ[x,y]
K = frac R
m = matrix {{x}}
n = mutableMatrix m
--This works on matrices as usual
lift(m, R)
R_0 * m
--But fails for mutable matrices
lift(n, R)
R_0 * n
--Workaround
mutableMatrix lift(matrix n, R)
promote(R_0, K) * n
```
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