Change given string to number. (hint: there is already function)
Changing from ['1234'] to  is one of example
Please expand the test suite so that solutions like this do not work.
Omit columns averages from a matrix
Wrapping the Tower of Pisa
Calculate square and cube of number
Where is 1?
Replace 0 to NaN!
Two dimensional moving average
Calculate inverse matrix in m by n matrix
Extract a specific part of matrix!
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