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.
Find the numeric mean of the prime numbers in a matrix.
Back to basics 23 - Triangular matrix
matrix of natural number
07 - Common functions and indexing 4
Square root of a number
Calculate numerical integration.
Change matrix to vector
Calculate area of sector
Print true if
How to calculate log?
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