FastChebInterp.jl

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basis function matrix and coefficient vector

4

If I want to extract the basis function matrix and coefficient vector after completing interpolation, what steps should I take?

121180875

chainrules for chebpoly constructors

2

It would be nice, in principle, to define chainrules for the chebpoly constructors, so that we support computation of sensitivities of e.g. polynomial evaluations to the *data* used to construct...

stevengj

Save & Load ChebPoly

2

I'm creating a set of `ChebPoly` objects as a surrogate for an expensive function in a package and I need a way to save and reload these functions. Does this...

weymouth

Support for custom types?

1

Can this package handle custom types in a Hilbert space? ```julia import Base: +, * struct Foo x::Float64 y::Float64 end +(f1::Foo, f2::Foo) = Foo(f1.x + f2.x, f1.y + f2.y) *(a::Real,...

juliohm

This function might be useful, e.g. for fitting in different norms. e.g. [see this discourse discussion](https://discourse.julialang.org/t/multivariate-polynomial-regression-of-discrete-data-in-l-infinity-norm/125369/7?u=stevengj)

stevengj

Pre-computing design matrix given repeated approximation in loop

1

Hi @stevengj, in first place, thanks for the nice package. I am exploring it for my application where I need to fit an array of data points on a pre-specified...

miguelborrero5