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[Octave-bug-tracker] [bug #52437] ismember fails for complex input

From: Paco Leon
Subject: [Octave-bug-tracker] [bug #52437] ismember fails for complex input
Date: Wed, 17 Jul 2019 14:15:08 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0 
Follow-up Comment #7, bug #52437 (project octave):

This code

[~,b] = ismember(-1-1j, [-1-1j, -1+3j, -1+1j])

yields 3 instead of 1

This is due to ismember using only the real part for computing the index, and
lookup returning the last index in case of values present more than once

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  <https://savannah.gnu.org/bugs/?52437>

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