the isnumeric function and the NaN

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Snoopy on 7 Sep 2018
Edited: Snoopy on 7 Sep 2018
I have a matrix array (A) that includes three column arrays. All columns contain integers except that one of the columns also include NaNs. When I type isnumeric(A), the output is a logical value 1. Apparently NaN is recognised as a numeric entry as otherwise MATLAB would return a logical value of 0. How is a NaN recognised exactly?
Snoopy on 7 Sep 2018
This is it. Thanks for the effort and time put into the answer. I wanted to accept this as answer but it seems comment cannot be marked as such. Sorry for this.

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Answers (1)

Cesar Antonio Lopez Segura
Write this in your command window:
isnan( [ 0 1 NaN] )

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