Is there a way to pre-allocate an array to hold the returned eigenvalues and vectors from eigen or eigen! ? Currently both functions return a factorization which does not seem to allow a pre-allocation. The following code shows what I would like to do but does not work: julia> A=rand(100,100); jul…

[image] jinml: Is there a way to pre-allocate an array to hold the returned eigenvalues and vectors from eigen or eigen! You might have to call the lower-level LAPACK routines directly. (Preallocation shouldn’t make much difference unless your matrices are fairly small.)

Pre-allocated eigen value decomposition

Specific Domains Numerics

stevengj April 11, 2022, 10:07pm 3

You might have to call the lower-level LAPACK routines directly. (Preallocation shouldn’t make much difference unless your matrices are fairly small.)

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Pre-allocated eigen value decomposition

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