test suite 1 is wrong
what are you using for pi?
indeed,why don't you use pi?
Test case 2 is wrong, also description is wrong. Do you want volume, circumference, or area?
Compute a dot product of two vectors x and y
Sum the numbers on the main diagonal
Square the input
Create a square matrix of zeros of even order
calculate the tangent of angle in radians
Calculate the logarithm of number
Calculate square and cube of number
Speed of car
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