def calculate():
print('What would you like to do?')
print('1. add')
print('2. subtract')
print('3. multiply')
print('4. divide')
print()
try:
operation = int(input(''))
except ValueError:
operation = int(input('That is not valid input. Please enter 1, 2, 3 or 4: '))
finally:
while(operation != 1 and operation != 2 and operation != 3 and operation != 4): #the function would not work properly with the
operation = int(input('That is not valid input. Please enter 1, 2, 3 or 4: ')) #while loop nested in an except statement
if(operation == 1):
print('You chose to add.')
result = addition.add()
elif(operation == 2):
print('You chose to subtract.')
result = subtraction.subtract()
elif(operation == 3):
print('You chose to multiply.')
result = multiplication.multiply()
elif(operation == 4):
print('You chose to divide.')
result = division.divide()
print()
print('The result is ' + str(result))
def multiply_and_send_result(number1, number2):
result = multiplication.multiply(number1, number2)
callback_url = '{url}?number={number}'.format(url=CALLBACK_URL,
number=result)
response = requests.get(callback_url)
if not response:
logger.error(
'Multiplication result could not be sent to given callback.')
return False
return True
def calculate(a):
return multiply(a, a)
import subtraction
import multiplication
import division
print("Please make a choice. Select from:")
print("1 for add")
print("2 for subtract")
print("3 for multiply")
print("4 for divide")
if True:
choice = input("Enter selection(1, 2, 3, 4):")
if choice in ('1', '2', '3','4'):
num1 = float(input("Enter first number:"))
num2 = float(input("Enter second number:"))
if choice == '1':
print(num1, "+", num2, "=", addition.add(num1,num2))
elif choice == '2':
print(num1, "-", num2, "=", subtraction.subtract(num1, num2))
elif choice == '3':
print(num1, "*", num2, "=", multiplication.multiply(num1, num2))
elif choice == '4':
try:
print(num1, "/", num2, "=", division.divide(num1,num2))
except ZeroDivisionError:
print("You cannot divide by zero")
else:
print("Invalid Input")
def multiply(x, y):
return x * y
def divide(x, y):
return x / y
#take input from user
print("Welcome to simple calculator, please select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
choice = input("Enter choice 1/2/3/4:")
num1 = int(input("Enter first number: "))
num2 = int(input("Enter the second number:"))
if choice == '1':
print(num1, "+", num2, "=", add(num1, num2))
elif choice == '2':
print(num1, "-", num2, "=", subtract(num1, num2))
elif choice == '3':
print(num1, "x", num2, "=", multiply(num1, num2))
elif choice == '4':
print(num1, "/", num2, "=", divide(num1, num2))
else:
print("Invalid input")
def divide_simple(dividend, divisor): len_dividend = len(dividend) len_divisor = len(divisor) # 1. 生成除数的倍数表（1-9） len_substractor = 9 tbl_substractor = [] tbl_substractor.append(divisor) for i in xrange(2,len_substractor+1): num, _, power_ten = multiply(divisor, i) tbl_substractor.append(num + [0] * power_ten) quotient = [] remainder = dividend[:len_divisor-1] len_remainder = len_divisor -1 # 2. 将除法换算成阶梯型减法 for i in xrange(len_divisor-1, len_dividend): if len_remainder == 0 and dividend[i] == 0: if len(quotient) > 0: quotient.append(0) continue remainder.append(dividend[i]) subtractor_idx = None min_idx = 0 max_idx = len_substractor-1 if not is_smaller_or_equal(tbl_substractor[min_idx], remainder): if len(quotient) > 0: quotient.append(0) continue if is_smaller_or_equal(tbl_substractor[max_idx], remainder): subtractor_idx = max_idx else: # 二分法查找：比remainder小的最大substractor while min_idx<=max_idx: mid_idx = (min_idx + max_idx) / 2 if is_smaller_or_equal(tbl_substractor[mid_idx], remainder): min_idx = mid_idx+1 subtractor_idx = mid_idx else: max_idx = mid_idx-1 # if not is_smaller_or_equal(divisor, remainder): # if len(quotient) > 0: # quotient.append(0) # continue # # for i in xrange(len_substractor): # if is_smaller_or_equal(tbl_substractor[-1-i], remainder): # subtractor_idx = -1-i+len_substractor # break if subtractor_idx is None: continue digit_quotient = subtractor_idx+1 quotient.append(digit_quotient) subtractor = tbl_substractor[subtractor_idx] for i, digit_substractor in enumerate(subtractor[::-1]): digit_remainder = remainder[-1 - i] # 从右往左按位做减法，若不够减向高位借1 if digit_remainder < digit_substractor: remainder[-2 - i] -= 1 # 左边是高位 remainder[-1 - i] = digit_remainder + 10 - digit_substractor else: remainder[-1 - i] = digit_remainder - digit_substractor # 高位的0去掉 remainder = list_strip_zero(remainder) return quotient, remainder
import multiplication
import addition
import division
import mod
import subtraction
x = 8
y = 5
result_of_subtraction = subtraction.sub(x, y)
result_of_addition = addition.add(x, y)
result_of_multiplication = multiplication.multiply(x, y)
result_of_division = division.divide(x, y)
result_of_mod = mod.mod(x, y)
print("X=8 and Y=5")
print("Result of subtraction: " + str(result_of_subtraction))
print("Result of addition: " + str(result_of_addition))
print("Result of multiplication: " + str(result_of_multiplication))
print("Result of division: " + str(result_of_division))
print("Result of mod: " + str(result_of_mod))
print("This is the main file")
import addition
import Division
import multiplication
import subtraction
import modulus
op = input(
"Select operation you wish to perform:\n 1.Addtion\n 2.Subraction\n 3. Multiplication\n 4. Division\n 5.Modulus\n"
)
a = input("Enter the first number: ")
b = input("Enter the second number: ")
if (op == 1):
print(addition.add(a, b))
elif (op == 2):
print(subtraction.sub(a, b))
elif (op == 3):
print(multiplication.multiply(a, b))
elif (op == 4):
print(Division.div(a, b))
elif (op == 5):
print(modulus.mod(a, b))
def main_loop():
print("Welcome to the simple calculator. Please select from the following options:")
print()
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
print()
user_selection = 0
while True:
try:
user_selection = int(input("Please enter your selection: "))
print()
if (user_selection < 1 or user_selection > 4):
raise CalculatorInputError("**Please enter a valid option**\n")
else:
break
except CalculatorInputError as err:
print(err)
continue
except ValueError:
print("\n**Please enter an integer**\n")
continue
while True:
try:
n1 = int(input("Please enter your first number: "))
print()
break
except ValueError: # No custom error is necessary here
print("\n**Please enter a valid number**\n")
continue
while True:
try:
n2 = int(input("Please enter your second number: "))
print()
break
except ValueError: # No custom error is necessary here
print("\n**Please enter a valid number**\n")
continue
if user_selection == 1:
addition.add(n1, n2)
elif user_selection == 2:
subtraction.subtract(n1, n2)
elif user_selection == 3:
multiplication.multiply(n1, n2)
elif user_selection == 4:
division.divide(n1, n2)
print()
while True:
try:
response = input("Would you like to perform a new operation (y/n): ")
if (response != "y" and response != "n"):
raise CalculatorInputError("\n**Please enter a valid option**\n")
else:
if (response == "y"):
print("\n**\n")
main_loop()
else:
quit()
except CalculatorInputError as err:
print(err)
continue
choice = True
iteration = 0
while (choice == True):
a = input("enter your number: ")
while (1):
try:
a = float(a)
break
except:
print("only numbers allowed")
a = input("enter your number: ")
if (option == '1'):
result = add(a, result)
if (option == '2' and iteration == 0):
result = subtract(a, result)
elif (option == '2'):
result = subtract(result, a)
if (option == '3'):
result = multiply(a, result)
if (option == '4' and iteration == 0):
result = divide(a, result)
elif (option == '4'):
result = divide(result, a)
iteration = iteration + 1
choice = input(
"do you want to add one more number to youe operation y/n : ") == "y"
print("your result", result)
import addition
import subtraction
import multiplication
import divide
print("Please choose an operation")
print("1: Addition")
print("2: Subtraction")
print("3: Multiplication")
print("4: Division")
try:
userChoice = int(input ("Enter Choice 1 or 2 or 3 or 4 : "))
except:
print ('You have entered an invalid option.')
else:
if userChoice in ('1', '2', '3', '4' ):
number1 = int(input("Enter first number: "))
number2 = int(input ("Enter second number: "))
if (userChoice == '1'):
print( "Result is: " str(addition.add(number1, number2)))
elif (userChoice == '2'):
print("Result is: " str(subtraction.subtract(number1, number2)))
elif (userChoice == '3'):
print ("Result is: " str(multiplication.multiply(number1, number2)))
elif (userChoice == '4'):
print("Result is: " str(divide.division(number1,number2)))
else:
print("Invalid user input")
def choose():
while True:
print("Welcome to my python calculator. What would you like to do? ")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
thislist = []
y = True
while True:
try:
user_selection = int(input("My choice is: "))
if user_selection > 0 and user_selection < 5:
break
else:
print("Only integers between 1 and 4 are allowed. Try again")
# CalculatorInputError
except ValueError:
print("Only integers between 1 and 4 are allowed. Try again")
while True:
n1 = input("Type the number and press enter: ")
print("To calculate type '=': ")
if n1 == "=":
break
else:
n1 = int(n1)
thislist.append(n1)
if user_selection == 1:
answer = add(thislist)
print("answer: " + str(answer))
elif user_selection == 2:
answer = subtract(thislist)
print("answer: " + str(answer))
elif user_selection == 3:
answer = multiply(thislist)
print("answer: " + str(answer))
elif user_selection == 4:
for x in range(len(thislist) - 1):
if thislist[x] == 0:
print("cannot divide by zero")
print("")
choose()
answer = divide(thislist)
print("answer: " + str(answer))
else:
print("Invalid selection. please try again")
print("")
import add, subtract, multiplication, divide, modulus
print(
"<-- Mathematical Program -->\n1.Addition\n2.Subtraction\n3.Multiplication\n4.Division\n5.Modulus"
)
inp = int(input("Enter your choice->"))
if (inp == 1):
print(add.add())
elif (inp == 2):
print(subtract.subtract())
elif (inp == 3):
print(multiplication.multiply())
elif (inp == 4):
print(divide.div())
elif (inp == 5):
print(modulus.mod())
else:
print("Invalid choice")
from multiplication import multiply
from division import divide
from register import *
a = int(input())
b = int(input())
r_a = store_in_register(a)
r_b = store_in_register(b)
if DEBUG:
print(r_a, r_b)
binary_product = multiply(r_a, r_b)
binary_quotient, binary_remainder = divide(r_a, r_b)
decimal_product = convert_decimal(binary_product)
decimal_quotient = convert_decimal(binary_quotient)
decimal_remainder = convert_decimal(binary_remainder)
print("decimal product:", decimal_product)
print("decimal_quotient:", decimal_quotient)
print("decimal_remainder:", decimal_remainder)
print("binary_product:", binary_product)
print("binary_quotient", binary_quotient)
print("binary_remainder", binary_remainder)
assert (decimal_product == convert_to_decimal(binary_product))
assert (decimal_quotient == convert_to_decimal(binary_quotient))
assert (decimal_remainder == convert_to_decimal(binary_remainder))
def test_multiplication(self):
self.assertEqual(multiplication.multiply(2, 2), 4)
self.assertEqual(multiplication.multiply(10, 2), 20)
