Min:
Max:
The randomiser defaults to emulating a six sided die. Just use the Roll button to roll a new number. You can also enter different ranges, e.g.:
Min: -2, Max: 3 will generate a random number from the set: -2, -1, 0, 1, 2, 3
Note that the randomiser works with whole numbers. Anything you enter after the decimal point will be ignored.