There used to be a rref
function to put a matrix in reduced row echelon form, but it is not available anymore.
Is it in some package, or has it been renamed?
https://github.com/blegat/RowEchelon.jl seems to be what you need
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Thanks, that works. Also thanks to B. Legat from Belgium who saved rref
from the ongoing slimming of Base.
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