Write a logical function that returns 1 if the input matrix is symmetric and 0 otherwise.
You need a test case with a non-symmetric matrix. Otherwise, your test suite is too easily defeated.
I don't know
Sum the Digits of a Number
Return 'on' or 'off'
Duplicate a character
Area of a Square
Find out total non zero element of matrix
Max index of 3D array
Volume difference between Ellipsoid and Sphere
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