This is the next step for creating an expression solver! Of course, you can't evaluate an expression that's invalid, so this project helps detect whether or not the entered expression is valid! The next step should be creating the system to detect what to do with the numbers depending on what item is in the list, as well as setting the order to be PEMDAS (or BEDMAS, same thing)! Stay tuned for the next project!
All made by me!
