Answers for "how to create a calculator in python"

create calculator in python

from tkinter import *
import random
import time

def btnClick(numbers):
	global operator
	operator = operator + str(numbers)
	text_Input.set(operator)

def bcd():
	global operator
	operator = ""
	text_Input.set("")

def bei():
	global operator
	sumup = str(eval(operator))
	text_Input.set(sumup)
	operator = sumup


root = Tk()
root.title("Calculator")
root.resizable(False, False)

operator = ""
text_Input = StringVar()

#AnsShow
textDisplay = Entry(root, font = ('arial', 20, 'bold'), textvariable = text_Input, bd = 30, insertwidth = 4, bg = "red", justify = 'right')
textDisplay.grid(columnspan = 4)

#button
btn7 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "7", command = lambda:btnClick(7)).grid(row = 1, column = 0)

btn8 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "8", command = lambda:btnClick(8)).grid(row = 1, column = 1)

btn9 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "9", command = lambda:btnClick(9)).grid(row = 1, column = 2)

Add = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "+", command = lambda:btnClick("+")).grid(row = 1, column = 3)

#============================================================================================================================#
btn4 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "4", command = lambda:btnClick(4)).grid(row = 2, column = 0)

btn5 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "5", command = lambda:btnClick(5)).grid(row = 2, column = 1)

btn6 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "6", command = lambda:btnClick(6)).grid(row = 2, column = 2)

Sub = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "-", command = lambda:btnClick("-")).grid(row = 2, column = 3)

#===============================================================================================================================#
btn1 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "1", command = lambda:btnClick(1)).grid(row = 3, column = 0)

btn2 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "2", command = lambda:btnClick(2)).grid(row = 3, column = 1)

btn3 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "3", command = lambda:btnClick(3)).grid(row = 3, column = 2)

Multiply = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "*", command = lambda:btnClick("*")).grid(row = 3, column = 3)

#==================================================================================================================================#
btn0 = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "0", command = lambda:btnClick(0)).grid(row = 4, column = 0)

equal = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "=", command = bei).grid(row = 4, column = 1)

divide = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "/", command = lambda:btnClick("/")).grid(row = 4, column = 2)

clear = Button(root, padx = 16, bd = 8, fg = "black", bg = "red", font = ('arial', 20, 'bold'), text = "c", command = bcd).grid(row = 4, column = 3)

root.mainloop()

simple python calculator

#Store number variables for the two numbers

num1 = input('Enter first number: ')
num2 = input('Enter second number: ')

#the sum of the two numbers variable
sum = float(num1) + float(num2)
sum2 = float(num1) - float(num2)
sum3 = float(num1) * float(num2)
sum4 = float(num1) / float(num2)

#what operator to use
choice = input('Enter an operator, + = addition, - = subtraction, * = multiplication and / = division: ')
#different sums based on the operators
if choice == '+':
  print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))

  if choice == '-':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum2))

if choice == '*':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum3))

if choice == '/':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum4))

python calculator

num_one = int(input("Enter 1st number: "))

op = input("Enter operator: ")

num_two = int(input("Enter 2nd number: "))

if op == "+":
    print(num_one + num_two)
elif op == "-":
    print(num_one - num_two)
elif op == "*" or op == "x":
    print(num_one * num_two)
elif op == "/":
    print(num_one / num_two)

basic calculator in python

#My Personal Python calculator
print("My Personal Python calculator")
#inputs
num1 = int(input('Enter the first number:  '))
num2 = int(input('Enter the second number:  '))
#opration req
opr = input('Enter the type of operation you want to perform between your chosen two numbers:  ')
#calculation
if opr=='+':
    ans = num1 + num2
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr == '- ':
    ans = num1 - num2
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr=='*':
    ans = num1 * num2;
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr=='/':
    ans = num1 / num2
    # displaying the answer
    print(f'Your final answer is {ans}')
else:
    print('Invalid Entry!!!')

calculator in python

Select operation.
1.Add
2.Subtract
3.Multiply
4.Divide
Enter choice(1/2/3/4): 3
Enter first number: 15
Enter second number: 14
15.0 * 14.0 = 210.0

how to create a calculator in python

5+5=