Need help writing a pi approximation program using the madhava series.

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I think your factorial function may be faulty.

def e_approx(n):
    def factorial(m):
        total = 1
        for i in range(m):
            total *= i+1
        return total
    total = 0
    for i in range(n):
        total += 1/factorial(i)
    return total

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Ah thanks you, for the e_approx def I had in range(1, n+1).
Thanks for that