At a minimum, you should make this problem variable. For example, find the element at the ith row and jth column and define i and j in the test cases, which are passed along with the function.
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Roll the Dice!
Getting logical indexes
Rotate a matrix for 180 degree
multiply an array by its position number
Find remainder when x is divided by 3
Determine whether the input is divisible by 3 as well as 5
Calculating selling price
find the mean of all elements in a matrix
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