[ruby-core:83832] [Ruby trunk Feature#14116][Feedback] Add Matrix #exponentiate method as Matlab's exp

Issue #14116 has been updated by marcandre (Marc-Andre Lafortune).

Status changed from Open to Feedback
Assignee set to marcandre (Marc-Andre Lafortune)

Thanks for the PR.

The name is not acceptable, as the exponential of a matrix is something different (expm in Matlab): https://en.wikipedia.org/wiki/Matrix_exponential

I wish I was more familiar with machine learning to know how frequent calculating this is. If it is, there should be a name for this, no?

The fact that `map{|e| Math.exp(e)}` is quite simple to do makes me even more hesitant to add that method too.

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Feature #14116: Add Matrix #exponentiate method as Matlab's exp
https://bugs.ruby-lang.org/issues/14116#change-67863

* Author: greggzst (Grzegorz Jakubiak)
* Status: Feedback
* Priority: Normal
* Assignee: marcandre (Marc-Andre Lafortune)
* Target version: 
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Add exponentiate method which results in returning a new matrix with each element being an exponent of the number e.
Here is PR for that: https://github.com/ruby/ruby/pull/1762



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