I need a function that allows a positive number with a decimal point, to be rounded up or down. For example:
2.3 would be 2
2.7 would be 3
I also need a function that, when a user inputs 4 numbers, that the numbers are only allowed if they are positive. I have figured out how to have the user input 4 numbers but can't figure how to assure that they are positive and when they're aren't, an error message informs the user.
Any help would be appreciated