Solving the sparse system is returning a Matrix while converting to dense and then solving returns a Vector as expected. Is this the expected behavior? Or am I doing something incorrectly? using SparseArrays # Constructing sparse array function hess_sparse(x) return [-sin(x[1] + x[2]) + 1, -s…

You are artificially sparsifying the rhs. Your function grad_sparse already returns the rhs as is. You could then even save the additional memory allocation due to gradinds, if you left the rhs dense. Also, you would save the allocation of the index vector for the result, and, if you don’t need grad…

Solving sparse linear system returns a Matrix

Specific Domains Numerics

stevengj January 5, 2023, 2:05pm 11

See also Sparse solve with sparse rhs

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Solving sparse linear system returns a Matrix

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