Packages for rational interpolation?

New to Julia
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1

Given the numerous packages and other developments about polynomials and interpolations in the Julia ecosystem (e.g. Polynomials.jl, SpecialPolynomials.jl and Interpolations.jl) , I was wondering if there are some packages that deal with rational interpolation.

By now I only found BaryRational.jl, but as often that may be just because of a lack of proper keywords in my search.

Side-note, a multi-variate capable package would be a plus.

2

There is a note here https://github.com/JuliaMath/Polynomials.jl/blob/master/src/rational-functions/fit.jl#L14 with a bit of a summary. It also includes reference to a RationalApproximations package.