Given the vectors x and y as input, multiply the vectors and return the summation of its elements.
x = [1 2 3 4];
y = [4 3 2 1];
x * y = [4 6 6 4];
z = 4 + 6 + 6 + 4 = 20
surface of a spherical planet
2 b | ~ 2 b
Back to basics 11 - Max Integer
Is it a number?
07 - Common functions and indexing 5
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