Contents

📝 Review of For Loops

Contents

📝 Review of For Loops#

Structure#

A “for loop” uses iteration over a sequence.

for looping_variable in sequence:
    code_block

Recap: code modulus function#

Recall: the modulus operator provides the remainder left after dividing one number by another.

How would you use a for loop to calculate the result of the modulus operator (without using this operator)?

First, think about the method you would use.
Test that process with 5 (= dividend) divided by 3 (= divisor) and 4 (= dividend) divided by 2 (= divisor).

# add your code where the ... appears
def forModulus(dividend, divisor):
    numDiff = ...
    remainder = ...
    for i in range(...):
        ...
    return remainder

print(forModulus(5,3))
print(5%3)

print(forModulus(4,2))
print(4%2)

The notes for Session 5 benefitted from the availability of Python Programming and Numerical Methods: A Guide for Engineers and Scientists through the MIT License.