iterative function for calculating exponents without using **

Question

I need to write a program where I write an iterative function that calculates the exponential of base * exponent without using ** operator in my program.

I have tried the code I have already created but am unsure how to fix my error of “int” object is not callable.

def iterPower (base, exp):
    """Run a program in which the base multiplies itself by the exponent value"""
    exp = 3
    for n in base(exp):
        exp *= base
    return exp

base = 5
exp = 3

print(iterPower(5,3))

The expected result would be the answer of 125, but I am not getting any number due to my errors.

Asked By: thefence2113

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Source

Answer 1

Youre passing in integers so you can’t call 5(3), like base(exp) does. Try using for n in range(exp) instead, it will give you the desired number of iterations.

Answered By: billybob123

Answer 2

You need to multyply base * base exp times:

def iterPower (base, exp):
    """Run a program ion which the base multiplies itself by the exponent value"""
    n = base
    for _ in range(1, exp):
        n *= base
    return n

Results:

>>> iterPower(5, 3)
125
>>> 5**3
125

Answered By: Netwave

Answer 3

Here is an answer using the "While" loop:

result = 1
while exp > 0:
    result *= base
    exp -= 1
return result

Answered By: Augusto Moser

iterative function for calculating exponents without using **

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