def emi_calc(principle: "Money borrowed" = 100000,
interest: "interest rate per year" = 10,
years: "Term of the loan" = 3):
'''The function will returm the Equated Monthly installment amount
for the borrowed principle over a certain period at a certain rate of interest'''
for i in (principle, years):
if not is_int(i):
raise TypeError(
f'Unsupported format,{type(i)} in the place of "int"')
if not is_float(interest) and not is_int(interest):
raise TypeError(
f'Unsupported format,{type(interest)} in the place of "int" or "float"'
)
for i in (principle, interest, years):
if i < 1:
raise ValueError("Invalid Entry")
monthly_int = interest / (12 * 100)
months = years * 12
present_value = 1 / (1 + monthly_int)
v_n = present_value**months
annuity = (1 - v_n) / monthly_int
return round(principle / annuity)
def is_pythagorean_triple(triple):
'''This function returns True is the passed element is a pythagorean triple,
returns False otherwise'''
if isinstance(triple, tuple) and len(triple) == 3:
if is_int(triple[0]) and is_int(triple[1]) and is_int(triple[2]):
numbers = list(triple)
numbers.sort()
return (numbers[0]**2 + numbers[1]**2) == numbers[2]**2
raise TypeError("Unsupported Type")
raise TypeError(f"Unsupported Type {type(triple)}")
def compound_interest(principle=1000, years=2, rate=7):
'''This function will return the interest part of the principle
compounded throughout the term.
Note: The interest is compounded annunaly, so the year must not be a float'''
if not is_int(years):
raise TypeError(
f'Unsupported Format,{type(years)} passed in the placce of integer'
)
for i in (principle, rate):
if not is_float(i) and not is_int(i) or isinstance(i, bool):
raise TypeError('Unsupported Format')
for i in (principle, years, rate):
if i <= 0:
raise ValueError('invalid entry')
return round(((principle * (1 + (rate / 100))**years) - principle), 2)
def quadratic_equation(a_x, b_y, c_c):
'''
This function finds the roots X and Y for the given input to a quadratic
equation
'''
for i in (a_x, b_y, c_c):
if not is_int(i) and not is_float(i):
raise TypeError("unsupported format")
discriminant = (b_y**2) - (4 * a_x * c_c)
if discriminant > 0:
root_x = ((-b_y + (discriminant)**0.5) / (2 * a_x))
root_y = ((-b_y - (discriminant)**0.5) / (2 * a_x))
print("The roots are real and distinct")
print(
f'The roots are {str(Fraction(root_x))} and {str(Fraction(root_y))}'
)
return root_x, root_y
if discriminant == 0:
root_x = root_y = -b_y / (2 * a_x)
print("The roots are real and equal")
print(
f'The roots are {str(Fraction(root_x))} and {str(Fraction(root_y))}'
)
return root_x, root_y
if discriminant < 0:
root_x = root_y = -b_y / (2 * a_x)
imaginary = ((discriminant)**0.5) / (2 * a_x)
root_x_1 = ComplexCustom(root_x + imaginary)
root_x_2 = ComplexCustom(root_x - imaginary)
print("The roots are complex")
print(f'The roots are{root_x_1}and{root_x_2}')
return root_x_1, root_x_2
return None
def sort_complex_numbers(*complex_numbers):
'''The function returns a sorted tuple of passed complex numbers
based on the real part of those complex numbers'''
for i in complex_numbers:
if not is_int(i) and not is_float(i) and not isinstance(i, complex):
raise TypeError("Unsupported format")
list_complex = list(complex_numbers)
list_complex.sort(key=lambda complex_num: complex_num.real)
return tuple(list_complex)
def number_to_list_digits(number):
'''This function returns individual digits'''
if not is_int(number):
raise ValueError(f"Invalid Inputs {type(number)}, {number}")
number_str = str(number)
if number_str.isnumeric():
return [int(char) for char in number_str]
raise ValueError(f"Invalid Inputs {type(number)}, {number}")
def calc_int_paid(amt_borrowed: "Money borrowed" = 100000,
int_rate: "interest rate per year" = 10,
term: "Term of the loan" = 3):
'''The function will calculate the emi for the loan and then returns the interest amount
paid during the term of the loan'''
for i in (amt_borrowed, term):
if not is_int(i):
raise TypeError(
f'Unsupported format,{type(i)} in the place of "int"')
if not is_float(int_rate) and not is_int(int_rate):
raise TypeError(
f'Unsupported format,{type(int_rate)} in the place of "int" or "float"'
)
for i in (amt_borrowed, int_rate, term):
if i < 1:
raise ValueError("Invalid Entry")
#Encapsulating of the function to calculate emi
def calc_emi(amt_borrowed, int_rate, term):
monthly_int = int_rate / (12 * 100
) #converting the yearly interest to monthly
months = term * 12
present_value = 1 / (1 + monthly_int
) #Finding out present value for Re.1
v_n = present_value**months
annuity = (1 - v_n) / monthly_int #annuity for the term
return amt_borrowed / annuity
#The below method is to calculate the total interest from the loan schedule
emi = calc_emi(amt_borrowed, int_rate, term)
interest_amt = amt_borrowed * (int_rate / (12 * 100))
total_interest = interest_amt
principle_amt = emi - interest_amt
loan_outstanding = amt_borrowed - principle_amt
while loan_outstanding > 0:
interest_amt = loan_outstanding * (int_rate / (12 * 100))
total_interest += interest_amt
principle_amt = emi - interest_amt
loan_outstanding = loan_outstanding - principle_amt
return round(total_interest)
def is_prime(number):
'''This fucntion returns True if the number is prime,
False otherwise'''
if not is_int(number):
raise TypeError(f"Unsupported Type {type(number)}")
for divisor in range(2, number):
if number % divisor == 0:
return False
return True
def product_prime(number):
'''This function returns the product of the numbers which are prime factors
of a given number'''
if not is_int(number):
raise TypeError(f'unsupported format, {type(number)} is in the place of"integer"')
if number <= 0:
raise ValueError("pass an integer greater than 0")
product = 1
for i in range(2, number+1):
if number % i == 0 and is_prime(i):
product = product * i
return product
def prime_before(number):
'''The Function will return the prime number that comes first
when we count from backwards of the given number
Note: The number passed should be greater than 2'''
if not is_int(number):
raise TypeError("Unsupported format")
if number <= 2:
raise ValueError('Invalid input')
for i in range(number - 1, 1, -1):
if is_prime(i):
return i
#This return will never be executed
return None
def factorial_num(number):
'''The function will return the factorial of the given number'''
if not is_int(number):
raise TypeError(
f'unsupported format, {type(number)} is in the place of"integer"')
if number < 0:
raise ValueError("pass a positive integer")
if number in (0, 1):
return 1
result = 1
if number > 1:
result = number * factorial_num(number - 1)
return result
def area(length, *b):
'''This function will take passed arguments and return
area of square if b is not given, else it will
return the area of rectangle'''
if not (is_int(length) or is_float(length)):
raise TypeError(
f"Unsupported type,'{type(length)}' in the place of 'int' or 'float'"
)
if length <= 0:
raise ValueError("Invalid entry")
if b:
if len(b) > 1:
raise ValueError("unpacking cannot be done")
if not (is_int(b[0]) or is_float(b[0])):
raise TypeError(
f"Unsupported type,'{type(b[0])}' in the place of 'int' or 'float'"
)
if b[0] <= 0:
raise ValueError("Invalid entry")
breadth, = b
if length != breadth:
return length * breadth
return length * length
def is_armstrong_number(number):
'''This function returns True if the number is amstrong number,
returns False otherwise'''
if not is_int(number):
raise TypeError(f"Unsupported type {type(number)}")
num_str = str(number)
num_digits = len(num_str)
sum_of_digits = 0
for digit in num_str:
sum_of_digits += (int(digit)**num_digits)
return number == sum_of_digits
def is_abundant_number(number):
'''The above function will return True if the given number is an abundant number or not.
Abundant Number: if the sum of the divisors(excluding the given number) of given number,
exceeds the given number then it is said to be abundant
Note: all prime numbers are not abundant.'''
if not is_int(number):
raise TypeError("unsupported format, Enter an Integer")
sum_divisors = 1
for i in range(2, number):
if number % i == 0:
sum_divisors += i
return sum_divisors > number
def sep_odd_eve(list_int):
'''when a list containing set of integers is passed, this function returns
two tuple within a tuple one containing odd integers and the other containing even integers'''
if not isinstance(list_int, list):
raise TypeError("unsupported format, pass a list")
for i in list_int:
if not is_int(i):
raise TypeError(
"unsupported format, pass integers inside the list")
odd_list = []
even_list = []
for i in list_int:
if i % 2 != 0:
odd_list.append(i)
else:
even_list.append(i)
return tuple(odd_list), tuple(even_list)
def derivative_x_pow(dif, num):
'''The function will return the nth derivative of "x" raised to the power of the given number'''
for i in (dif, num):
if not is_int(i):
raise TypeError("unsupported format")
if dif <= 0:
raise ValueError(
"invalid entry, enter a valid number to differentiate")
if (dif > num) and num in (0, 1):
return 0
if dif >= num > 0:
return 1
fore = 1
index = num
for _ in range(1, dif + 1):
fore = fore * index
index = index - 1
return f'{fore}(x^{index})'
def amicable_numbers(num1, num2):
'''This function returns True if the numbers are amicable number,
returns False otherwise'''
for i in (num1, num2):
if not is_int(i):
raise TypeError("unsupported format")
for i in (num1, num2):
if i < 1:
raise ValueError("Enter a number greater than 1")
sum1 = 0
sum2 = 0
for i in range(1, num1):
if num1 % i == 0:
sum1 += i
for j in range(1, num2):
if num2 % j == 0:
sum2 += j
return sum1 == num2 and sum2 == num1
def test_is_int():
assert is_int(10) == True
assert is_int(10.1) == False
assert is_int("10") == False
assert is_int([1, 2, 3]) == False
assert is_int((1, 2, 3)) == False
assert is_int({1: 2, 2: 2}) == False
assert is_int(True) == False
assert is_int(None) == False
assert is_int(set()) == False
assert is_int(1000) == True
assert is_int(10000000) == True
assert is_int(1)
