Pick a line of a matrix

Pick a line of a matrix - How does one elegantly pick the n-th line of a Matrix? - Messages

#1 Posted: 11/28/2021 1:15:58 PM

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Is there a more elegant way to pick line number "B" from Matrix "A" other than the way I do it in my example?

I am looking for a solution that is as tiny as possible on my worksheet.

#2 Posted: 11/28/2021 1:24:04 PM

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Russia ☭ forever, Viacheslav N. Mezentsev

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brotjob 11/28/2021 1:28:00 PM

#3 Posted: 11/28/2021 1:29:54 PM

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Wow! Two elegant solutions within ten minutes, that's simply great.

#4 Posted: 11/28/2021 9:04:39 PM

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Wrote
Is there a more elegant way to pick line number

Pick anything in any ways algo style for infinite use in-situ.