solutions are rounded in a somewhat arbitrary fashion...
Your value of pi is wrong.
The problem should specify that the used value for pi is 3.1416 (since this is not its true value), and that we need to use floor with precision of 4 decimal places.
Check if sorted
Convert a Cell Array into an Array
y equals x divided by 2
Calculate square and cube of number
Delete blanks at the end of string
Moore-Penrose pseudoinverse of matrix
Permutations of input vector
Roots of quadratic equation
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