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
Determine Whether an array is empty
Find out missing number from a vector of 9 elements
find the surface area of a cube
Square a Number
Back to basics - array operations
Tax Season ! How much is my salary?
Find supported functions
Let's get back to school: create mixed numbered fraction
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