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Product of sparse matrix with transpose #1276

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blegat opened this issue May 7, 2018 · 2 comments · Fixed by #2063
Closed

Product of sparse matrix with transpose #1276

blegat opened this issue May 7, 2018 · 2 comments · Fixed by #2063
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blegat commented May 7, 2018

If A and X are sparse matrices, one of them of numbers, the other one of VariableRef or AffExpr then the product A * X' should have eltype AffExpr but currently Base.A_mul_Bc converts both matrices to the AffExpr eltype and allocates a matrix of AffExpr eltype which doesn't work as the product of AffExpr is QuadExpr.
blegat added a commit that referenced this issue May 7, 2018
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Reference #1276
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@blegat blegat mentioned this issue May 7, 2018
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mlubin commented Feb 24, 2019

Base.A_mul_Bc doesn't exist anymore. Is this still an issue?

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blegat commented Feb 27, 2019

There is a broken test:
https://github.com/JuliaOpt/JuMP.jl/blob/c01802926c34aa30e5d272ac1063f1595084aa4a/test/operator.jl#L498

@odow odow mentioned this issue Apr 18, 2019
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@blegat blegat mentioned this issue Jun 20, 2019
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@blegat blegat self-assigned this Sep 17, 2019
@blegat blegat mentioned this issue Sep 17, 2019
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Fix product of sparse matrices for Julia v1.3 jump-dev/JuMP.jl
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