No. We are only exposing `cond` but as you can see in https://github.com/JuliaLang/julia/blob/master/base/linalg/lu.jl#L235 we are actually getting `rcond` from LAPACK and then calling `inv`. I can see the usefulness of working with a number in [0,1] instead of [1,inf) but it seems superfluous to have both `cond` and `rcond` when the `inv` computation is so cheap. Matlab has taken that path though.
On Sunday, August 28, 2016 at 2:18:55 PM UTC-4, Douglas Bates wrote: > > I am accustomed to evaluating the reciprocal condition number instead of > the condition number of a matrix because rcond is what LAPACK provides and > because the values of rcond are in [0, 1]. I notice that there is a cond > function in Base but not an rcond. Did I miss something? It happens that > I want the rcond of a triangular matrix so it is easy to call the LAPACK > function directly. >
