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.
Summing Digits within Text
Tell me the slope
Concatenate two strings
Area of a triangle
Print true if
Interpolate scattered data.
Determine point is located in a circle or not
Solve the system of linear equations
Weighted moving average
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