Question

# This program calculates the ending principal in a bank

# account after compounding the interest.

def calculate_principal_post_interest(principal, annual_interest_rate, compounds_per_year, years):

    """

    :param principal: Positive float

    :param annual_interest_rate: A positive integer (e.g. 6 for 6%)

    :param compounds_per_year: A positive integer

    :param years: A positive integer

    :return:

    """

    #raise NotImplementedError

    P = principal

    r = annual_interest_rate

    n = compounds_per_year

    t = years

    return round(P * ((1 + (r / n)) ** (n * t)), 2)

Answer 1

CODE

def calculate_principal_post_interest(principal, annual_interest_rate, compounds_per_year, years):

"""

:param principal: Positive float

:param annual_interest_rate: A positive integer (e.g. 6 for 6%)

:param compounds_per_year: A positive integer

:param years: A positive integer

:return:

"""

return principal * (1 + annual_interest_rate * 0.01 / compounds_per_year) ** (compounds_per_year * years)

print(calculate_principal_post_interest(5000, 5, 12, 10))