Getting the indices from a vector
Set the array elements whose value is 13 to 0
Rounding off numbers to n decimals
Vectors counting by 2
Draw 'O' !
Percentage of zeros in a matrix of only 1s and 0s
Perimeter of a semicircle
Basic matlab numeric and string manipulations
basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix
Repetition of matrices
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