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Re^2: Surface fitting with PDL

by etj (Deacon)
on Apr 21, 2022 at 07:23 UTC ( [id://11143153]=note: print w/replies, xml ) Need Help??


in reply to Re: Surface fitting with PDL
in thread Surface fitting with PDL

Note for posterity: the go-to module for this stuff is PDL::LinearAlgebra. The obvious solver for Ax=B would be "msolve", and the notes for that give which LAPACK function is used "under the hood". For solving many times, you'd want to do a decomposition (quite possibly an LU) first, then reuse it. Take a look!

LAPACK is a huge and powerful library for linear-algebra stuff, and getting to know it will be useful, regardless of which language environment you use - I don't think there is a single language environment that doesn't have a binding for it.

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