How To make a Calculater

                    INTRODUCTION      

    

Python is very useful and very easy  and simple to use programming language other than  C++,C#,C language,Java etc.
In Python you can easily make many things are like game development, etc.        
          There are many ways to make a calculator in Python but I will give you a simple and easy to make a calculator in Python.                     

 There are some Steps to Make A calculator in Python .                        

So, Let's Begin.           

  STEP1:- USE INPUT() METHOD TO ADD TWO NUMBERS.                    

In Python. You should use input() method to enter any number or a string but when we make a calculator we should use numbers because number will be add not String. So, we will use one more function to print any number that is int() method to enter any number or a integers.                I will give you an example how to add and save it with "calculator.py" name.                          

 For example :-                        

 Num 1 =int( input("Enter First No.))

Num2 = int(input("Enter Second No.")) 

Output:- 

Enter First Number :10  
Enter Second Number: 5          

              
I think you understand that How Enter any two numbers but you don't know How to print two numbers and add these two Numbers.             

 
For Example:- 
Num1=int (input("Enter first No."))
 Num2=(input(" Enter Second No.")). Print(Num1+Num2)

Output:-

15

Step:-Some instructions to use in python           

Similarly,You will give input to subtract ,Multiplication ,Division etc. And save it'Calculatoropy"name. 

For Example:-          

 Print(Num1-Num2)

 Print(Num1/Num2)

 Print (Num1*Num2) 

Output:- 

5

2

50

 Step3:- Giving statement to make a calculator. Statement 

Now, You can give to make a calculation.Give statement are like.     

For Example:-

Print ("Enter + sign to Addition")

 Print ("Enter - sign to Subtract" ) 

Print ("Enter * sign to Multiple") 

Print ("Enter /sign to Divide). 

Sign = input ("Enter your Sign") 

Output:-

Enter + sign to add

Enter - sign to subtract

Enter / sign to Divide 

Enter * sign to Multiply 

Step4:- Giving Condition :- 

     There are many statement in Python but we you if & else & elif statement to make a calculator. 

For Example:-

 Print ("Enter + sign to addition") 

Print ("Enter - sign to Subtract)

 Print("Enter / sign to Divide)

 Print ("Enter * sign to Multiple")

 Sign =input ("Enter Your Sign") 

Num1= int (input("Enter First No."))  
Num2 = int(input("Enter Second No.") 
if Sign = = "+": 
 Print (Num1,"+",Num2,"=",(Num1 + Num2))

Output:- 

Enter -sign to subtract 

Enter +sign to add

Enter/ sign to Divide 

Enter * sign to Multiply 

10+5=15

STEP5:- FINALLY MAKE A CALCULATOR WITH PYTHON 

Finally, you make a calculator with the help of python once you make a calculator You should save "Calculator.py".

 I Hope you like it.

Notice:-

If you enter + sign so your output:- is 

Input:-

Print("enter + sign to add")

Print("enter - sign to Subtract")

Print("enter * sign to Multiply")

Print("enter / sign to Divide")

Sign=input("enter your sign")

Num1=int(input("enter first number"))

Num2=int(input("enter second number"))

If sign=="+":

 Print(Num1,"+",Num2,"=",(Num1+Num2)

elif sign=="-":

 print(Num1,"-",Num2,"=",(Num1-Num2)

elif sign=="/":

Print(Num1,"/",Num2,"=",(Num1/Num2)

else:

Print(Num1,"*",Num2,"=",(Num1*Num2)

Output:- 

enter + sign to add

enter - sign to subtract 

enter / sign to Divide 

enter * sign to Multiply 

15