Dear Marc, I agree with you that inverse functions are important and that we don’t want to loose any information, but I also agree (with others) that mathematical correctness should be preserved, and that at the moment we are not being fully consecuent. I’ll keep in mind your post, and before merging TaylorSeries.jl/pull/248 we will do some thorough testing, including the case used above, which I think it will not be affected by the PR.
I’ll also would like to invite you to participate in the discussion of that issue and associated PR, so we are all happy with the outcome. Finally, due to lack of time I haven’t been able to complete that PR, but I am truly willing to do.
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