JuliaArrays / JuliaArrays/StaticArrays.jl
Are special matrix types supported?
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- Julia
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Description
Like Static Tridiagonal matrix? I tried to convert a Tridiagonal matrix to a Static Array but that makes it into a dense matrix.
A=Tridiagonal(ones(10),ones(11),ones(10))
SMatrix{11,11}(A)
11×11 SMatrix{11, 11, Float64, 121} with indices SOneTo(11)×SOneTo(11):
1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 0.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 1.0 1.0 1.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 1.0 1.0 1.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.0 1.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.0 1.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.0 1.0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 1.0
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
No repository file or test is identified in the issue. Start by reproducing the Julia example with Tridiagonal and SMatrix{11,11}, then inspect the existing StaticArrays conversion entry points and tests. Done should be a documented, tested answer or implementation for whether special matrix types such as Tridiagonal can be represented without becoming dense.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- performance
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100