Back to basics 17 - white space
Set some matrix elements to zero
Given a 4x4 matrix, swap the two middle columns
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Find out sum of all elements of given Matrix
First non-zero element in each column
Find the elements of a matrix according to a defined property.
Create a matrix X, where each column is a shifted copy of the vector v
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
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