Dice Notation is a way of specifying different dice rolls, in the form of [number of dice]d[size of dice][optional modifier].

For instance, if you wanted to roll one standard six sided dice, you would write it as "1d6" in dice notation. The "d" in the middle stands for "dice". The number before the "d" indicates how many dice to roll. In this case, one die. If you wanted to roll more dice, the values would get added together. The number after the "d" indicates the type of die as determined by the number of faces it has. In this case it's a six sided die, so the number is "6".

Sometimes a modifier is added to the end of the notation. 1d6+1 would indicate you should add one to the result of a roll of a six sided dice, giving a result of 2 - 7, inclusive.

Common die types used in gaming are 4, 6, 8, 10, 12, 20, or 100. The Magnificent Dice Roller is all digital so you don't have to be constrained by the physics of real world dice. There's no reason you couldn't roll a 3 sided die (1d3), or a million sided die (1d1000000).

Some examples of dice notation using different kinds of dice might be...

- 1d4
- Roll one four sided die
- 3d6
- Roll a six sided die three times, and sum the result
- 2d8+3
- Sum two eight sided dice, then add three
- 1d10-1
- Roll one ten sided die, and subtract one
- 1d100
- Roll a hundred sided dice. Useful for percentages
- 1d%
- Shorthand notation for 1d100

The Magnificent Dice Roller lets you perform the same roll multiple times...

- 1d20+5*2
- Roll one twenty sided die and add five, then roll it all again a second time

The Magnificent Dice Roller also lets you batch different die rolls together...

- 1d20,1d8+1,1d6
- Roll a twenty sided die, then roll an eight sided die and add one, then roll a six sided die

I only learned about this one recently, but the Fudge game system uses fudge dice instead of more typical numbered dice. A fudge dice looks like a normal six sided die, but is marked with a pair of plus signs ("+"), a pair of minus signs ("-"), and a pair of blank sides.

The idea is that in the game, an action a character might perform can be influenced for the better or worse (or maybe not influenced at all).

You might roll a fudge roll to see if the action taken was a better than average attempt (rolling a plus), worse than average (rolling a minus), or just plain average (rolling a blank).

The Magnificent Dice Roller now accepts fudge dice notation, as indicated by writing "f" for the die type. eg...

- 1df
- Rolling a single fudge dice
- 3df
- Rolling three fudge dice
- 4df+1
- Rolling four fudge dice, and adding one to the result.

The Magnificent Dice Roller converts fudge rolls to a numeric value. Two plusses (++), for example, would be shown as "2". A plus and a minus (+-) would be zero (0), as would two blanks (00).