How to Build a Simple Calculator in Python - Step by Step 2

How to Build a Simple Calculator in Python - Step by Step 2

[saintlavrent]

personally what I've done, this was a useful tutorial

import math

print("Select an operation to perform: ")
print("1. ADD")
print("2. SUBTRACT")
print("3. MULTIPLY")
print("4. DIVIDE")
print("5. SQUARE ROOT")
print("6. RAISE TO POWER")

operation = input()

if operation == "1": # performs addition
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The sum of this calculation is: " + str(int(num1) + int(num2)))

elif operation == "2": # performs subtraction
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The sum of this calculation is: " + str(int(num1) - int(num2)))

elif operation == "3": # performs multiplication
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The sum of this calculation is: " + str(int(num1) * int(num2)))

elif operation == "4": # performs division
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The sum of this calculation is: " + str(int(num1) // int(num2)))

elif operation == "5": # performs square root
num = int(input("Enter number: "))
print("The square root is %f " %(float(math.sqrt(num))) )

elif operation == "6": # square a number
num = int(input("Enter number: "))
print("The power is %d " %(pow(num, 2)))

else:
print("Invalid Entry")

[Xidas_aventures]

on raise to the power add second line of code asking "what would you like the power to be" and instead of the (num1, 2) you can do (num1, num2)

[imtondoee]

Full Calculator
-

import math
print("Select an operation to perform: (1 - 6")
print("1. ADD")
print("2. SUBTRACT")
print("3. MULTIPLY")
print("4. DIVIDE")
print("5. SQUARE ROOT")
print("6. RAISE TO POWER")

operation = input()

if operation == "1": # PERFORM ADDITION
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The sum is " + str(int(num1) + int(num2)))
elif operation == "2": # PERFORM SUBTRACTION
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The difference is " + str(int(num1) - int(num2)))
elif operation == "3": # PERFORM MULTIPLICATION
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The product is " + str(int(num1) * int(num2)))
elif operation == "4": # PERFORM DIVISION
num1 = input("Enter first number: ")
num2 = input("Enter second number: ")
print("The result is " + str(int(num1) / int(num2)))
elif operation == "5": # SQUARE ROOT
num = int(input("Enter number: "))
print("The square root is %f " %(math.sqrt(num)) )
elif operation == "6": # RAISE TO POWER
num = int(input("Enter number: "))
print("The power is %d " %(math.pow(num, 2)) )
else:
print("Invalid Entry")

[towsifsadab]

where’s the video of creating web interface and running this calculator into it?

[marwaneahra-in]

Thank you man this is so good and useful

[rikka]

So, if someone is looking for a code which raises x to the power of n while x and n are inputs from the user, here is it:

elif operator == "6": # power of a number
number_1 = input("What's your base number?: ")
number_2 = input("What's your exponential number?: ")
print("The sum is:" + str(float(number_1) ** float(number_2)))

For me it didn't make sense to use pow( ) without a second number since it one, didn't work for me and two, I would like to user to choose their base and exponential number by themselves.

Overall, good video thank you.

[memabe]

Hi sir I need to develop a python program in anaconda to run an application like calculator or clock or any other applications if u have them in ur mind please suggest sir. Also how am I going to do it ?

[ragavaviraji]

Where is part three??
I guess he didn't upload it after 5 YEARS!!!!

[anondebennett]

Hy where is the follow up video to this one

[divinepeace]

I've inputed all but when I run my code, it's saying
Type error: float is required

[ragavaviraji]

WHO WANT PART THREE
like this comment
Edit: I never got more than 1 like please like this comment

[faizankhan-evit]

Can any one tell me how to add the number in b/w the line like
print(The square of NUM is %f"

[BennTresor-yjmv]

Hi please i want to in box you if u dnt mind