Integral of Absolute Sample Values

Problem

Given samples of |f| on a uniform grid with spacing dx, approximate the integral of |f| by the rectangle rule: dx * sum(|values|).

Return 0.0 for an empty list.

Hint

Take magnitudes before summing.

case 1

in: [[1,-2,3],0.5]

expected: 3

case 2

in: [[-1,-1],2]

expected: 4

case 3

in: [[],1]

expected: 0

Starter codePython

def integral_abs_values(values, dx):
    # Your code here
    pass

3 test cases · run your code against them in the editor