LinearAlgebraX Result Output Format

General Usage
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1

Hi all,

I am trying LinearALgebraX package,

the result is quite funny, why there are //1 in all entries?
Capture d’écran_2022-07-23_15-02-57

How to discard all the //1? most people will be confused, unless you are already experienced with Julia and Linear Algebra.

2

That’s how Rational values are printed and that seems to be the main point of LinearAlgebraX:

This module implements basic linear algebra methods for matrices with exact entries (e.g., Rational{Int} values). The function names typically match the standard ones in Julia but with an x (for “exact”) appended.

I guess most people who don’t want those //1 will just use LinearAlgebra without the X :wink:

Anyways, you can always convert to Float with convert(Matrix{Float64}, rrefx(A)) or Float64.(rrefx(A)) - but that will lose the x factor :wink:

3

thanks a lot, I need LinearAlgebraX for its exact entries, just need to get rid of the //1

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4

If you need to just get rid of the //1, it is more appropriate to write your own Base.show method, instead of changing the output type.

5

See JuliaLang/julia#45396.

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