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x = [12 54 21 36 27 19 16 78 65 43 38 91 5 8 3 18] how can i find elements of x (the values of x) such that xi<=30 and 30<=xi<=50

Asked by Waleed Alrabghi on 18 Feb 2016
Latest activity Answered by Jan
on 19 Feb 2016
x = [12 54 21 36 27 19 16 78 65 43 38 91 5 8 3 18] how can i find elements of x (the values of x) such that xi<=30 and 30<=xi<=50

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2 Answers

Answer by Jon
on 18 Feb 2016
Edited by Jon
on 18 Feb 2016

Look at the find() function. You can use logical operators like < , > , and = . Just try some things and see what happens.

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Why not just testing it ?
Many big inventions would not have been possible without the curiosity of the people engaged in the subject.
Best wishes
Torsten.

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Answer by Jan
on 19 Feb 2016

A further hint: "30<=xi<=50" might be misleading, because Matlab processes such terms from right to left. Therefore you need to connect the two relations by an and():
30 <= x & x <= 50

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