Calculate the mean of corner elements of a matrix.
e.g. a=[1 2 3;
4 5 6;
7 8 9;]
Mean = (1+3+7+9)/4 = 5
Replace NaNs with the number that appears to its left in the row.
Make one big string out of two smaller strings
Rotate a Matrix
Duplicate a character
Who is the baby and who is the daddy in this family?
Create a v-notch vector without "sort" function
Matrix multiplication across rows
Find offset of an element of a multi dimensional matrix
Sum of diagonals elements of a matrix
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