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
Getting logical indexes
Switch matrix to a column vector
Area of an equilateral triangle
Return the names and values of the input arguments of a function
Matrix multiplication across rows
Sum of diagonals elements of a matrix
Back to basics - array operations
Find offset of an element of a multi dimensional matrix
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