Check numbers in a 5x5 array

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STAVROS MANOLIS
STAVROS MANOLIS on 12 Jan 2022
Commented: Rik on 13 Jan 2022
I want to write a script that checks if a 5x5 array contains all the numbers from 1 to 25 but im failing to do so. Do you have any ideas?
  1 Comment
Jon
Jon on 12 Jan 2022
Please attach the code you've written and explain the problems (copy and paste error message if any) that you are having

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Answers (2)

KALYAN ACHARJYA
KALYAN ACHARJYA on 12 Jan 2022
Sufficients Hints:
#Check all the elements within 1 & 25, use logical statement to avoid loops
result=data>=.... & data<=....;
#Multiple all elements, if 1 yes, if 0 no
result=prod(result,'all')
  1 Comment
Rik
Rik on 13 Jan 2022
If this is indeed the goal (which I doubt), using the all function instead of prod would probably have a better perfomance.

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Jon
Jon on 13 Jan 2022
You can also do this without any loops using MATLAB's intersect function which lists the common elements between two arrays. Hint: if you have two 5x5 arrays and one of them contains the values 1:25 then how many elements will they have in common if the other array also contains the values 1:25

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