# An Actual Calculator

It is mind blowing how no one has created a calculator where you just type in an expression and get the result. All of the calculators I've seen have you type in one number then press enter then type in +, -, / or * then press enter then type your second number. This calculator takes simple expressions and returns the result.

Examples:

Input:1+1 | Output:2

Input:1000-15 | Output:985

Input:10*10 | Output:100

Input:100/10 | Output:10

Input:2/3 | Output:0.666666

Input:0/0 | Output: Error

*No spaces in expressions

**Can do addition, subtraction, multiplication, and division. Planning to add more operations in the future.

***Has float/int switcher in division. If is not a whole number it is a float, if it is a whole number it is an int.

My Calculator:

https://repl.it/@RyanMuraliraj/Calculator

Some of the calculators I was talking about:

https://repl.it/ibuiltthis/p/my-calculator-1

https://repl.it/ibuiltthis/p/calculator

https://repl.it/@HongjiDai/Simple-Calculator

This calculator does it but uses external modules without actually coding it themself:

https://repl.it/ibuiltthis/p/mega-calculator

Shoutout to the creators of the calculators listed above for the idea and inspiration.

pls upvote

You could use the .strip() function to get rid of the spaces that come with the user input.

and maybe you could add a space after the colon to make it look better.

like get=input("Input:").strip(' ')

Mine is simpler and better:

https://repl.it/@FanjinMeng/The-Simplest-Calculator-in-the-World

My version that is 2 lines (also crashes when inputted 0/0):

https://repl.it/@RyanMuraliraj/The-Actual-Simplest-Calculator-in-the-World

[print("Result: "+str(eval(input("Enter expression: " )))) if x else print("Welcome to the single line calculator") for x in range(2)]

print(eval(input('calculation here:')))

print(eval(input("calculation here:")))

non-crashing version:

try:

print(eval(input("calculation:")))

except:

print("INVALID")

This calculator does not use eval but can evaluate arbitrary length expressions, with parentheses. It supports floats.

https://repl.it/@proofofconcept/Basic-recursive-descent-parser

You type x=0 for example, and then you can use x in expressions

However variable names can only be one letter long

wow mate! this is super cool