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
Area of an equilateral triangle
Concatenate two strings
y equals x divided by 2
Matrix multiplication across rows
Matrix to column conversion
Find offset of given matrix element from first matrix element
Given an input string, generate a variable name out of it
Sum of diagonals elements of a matrix
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