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.
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.
This calculator does it but uses external modules without actually coding it themself:
Shoutout to the creators of the calculators listed above for the idea and inspiration.
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(' ')
This calculator does not use eval but can evaluate arbitrary length expressions, with parentheses. It supports floats.
Mine is simpler and better:
@fanjinmeng: Plus, not to put down someone who might be new to programming, but you can make your calculator even simpler and make it 2 lines. Also, because your code is 4 lines, if someone types in something that is mathematically impossible such as 0/0 the program crashes.
My version that is 2 lines (also crashes when inputted 0/0):