Chapter 3 - Error in Page 31 "Perform a Weighted Sum of Inputs"

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Guilherme A. Silveira (2)

Offline

Sep 5, 2017 @ 12:10 PM

There's a error in the code of the page 31, in the code below:

This:

def w_sum(a, b):
    assert(len(a) == len(b))
    output = 0
    for i in range(a):
        output += (a[i] * b[i])
    return output

Should be:

def w_sum(a, b):
    assert(len(a) == len(b))
    output = 0
    for i in range(len(a)): #The len(a) was missing
        output += (a[i] * b[i])
    return output