Matrix with inclined lines?

Asked Jan 01 '17 at 21:48

Active Jan 01 '17 at 21:48

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I would like to know how to add inclined lines in Matrix

asked Jan 01 '17 at 21:48

Dennis Miranda

see http://tex.stackexchange.com/questions/257043/how-can-i-highlight-elements-in-a-matrix – Zarko Jan 01 '17 at 21:53
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Please, don't teach Sarrus’ rule. – egreg Jan 01 '17 at 21:56
Please observe, that the vertical line should be after the third column, if you are trying to illustrate some variant of Sarrus' scheme. – Przemysław Scherwentke Jan 01 '17 at 21:56
@egreg +1. I always fight against using it instead of using properties of determinats. – Przemysław Scherwentke Jan 01 '17 at 21:57
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@PrzemysławScherwentke Yes: students immediately generalize it to higher order matrices. ;-) – egreg Jan 01 '17 at 22:00

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