How to Make Calculator in Python?

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 Input

#simple caloculatar program
import sys
import math
x=int(input("enter first number:"))
print('''add(+)
subtract(-)
multiply(*)
devide(/)
square(s)
square root(R)''')
choice=input("choice opreations....:(+,-,*,/,s,R)=")
while choice=='s':
    print(x**2)
    sys.exit()
while choice=='R':
    print(math.sqrt(x))
    sys.exit()
y=int(input("enter second number:"))
if choice=='+':
    print(x+y)


elif choice=='-':
    print(x-y)
   
elif choice=='*':
    print(x*y)
 
elif choice=='/':

  print(x/y)

else:
    print("invalid opreation")

   



Output

enter first number:5

add(+)
subtract(-)
multiply(*)
devide(/)
square(s)
square root(R)
choice opreations....:(+,-,*,/,s,R)=s
25


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