From: ruby-core@... Date: 2019-05-23T22:07:51+00:00 Subject: [ruby-core:92805] [Ruby trunk Feature#15869] Add abs to Matrix Issue #15869 has been updated by marcandre (Marc-Andre Lafortune). Assignee set to marcandre (Marc-Andre Lafortune) ---------------------------------------- Feature #15869: Add abs to Matrix https://bugs.ruby-lang.org/issues/15869#change-78179 * Author: bonafernando (Fernando Wolf Bona) * Status: Open * Priority: Normal * Assignee: marcandre (Marc-Andre Lafortune) * Target version: ---------------------------------------- While I was studying Markov Chain I had to find the maximum absolute value of the Matrix to divide the matrix in numbers from 0 to 1 to be able to make further analysis. Like this: ``` q = Matrix[ ... ] max = q.to_a.flatten.map { |e| e.abs }.max q = q / max ``` So this is the first of two features that I would like to contribute. 1. Matrix.abs 2. Matrix.max -- https://bugs.ruby-lang.org/ Unsubscribe: