For a given matrix A, find where the input number x appears.
Do this task by returning the vector which contains the row and the column as its element
A = [1 5 6 7]
x = 7
output = [1 4]
Demonstrates the limitations of the Test Suite, which should include more cases.
Select every other element of a vector
Angle between two vectors
Find sum of negative elements in row.
Replicate and Tile an Array
find the 'M'
Make an identity matrix whose diagonal elements are 1:n
Replace all odd numbers with NaN
Sum the rows
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