Create an anti-identity matrix of given dimension.
n = 2
A = [0 1; 1 0]
n = 3
A = [0 0 1; 0 1 0; 1 0 0]
Filter AC, pass DC
Number of Horns on a unicorn!
Basics: Divide integers to get integer outputs in all cases
Area of rhombus
Is it column vector?
Add two hex numbers
Find the rank of a matrix
Determine the mean of matrix
Create vector as shown in test cases
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