Solve given expression.
Note that this problem uses the word solve when it needs to say EVALUATE.
Also the required code to pass the tests shouldn't be available by COPY-AND-PASTE from Test Suite!
Angle between two vectors
Get the length of a given vector
Sum of series V
Help the Patriots get to the Super Bowl
Rotate a matrix for 180 degree
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
Opposite task convert binary numbers array into array of decimal numbers.
Get derivarive of polynomial given as vector array.
Form a square matrix from four square sub-matrices
Find sum of negative elements in row.
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