dX: Overengineered Dice Roller
Choose a die or dice to roll:
Or, “roll” your own using dX dice notation:
Then, see what comes out:
Rolling:
1d8
1based
Rolled:
1
Random numbers are sourced from random.org.
dX Dice Notation
The notation dX uses is an extension of standard dice notation. The complete reference is divided into three sections below:
Constants & Dice Dice Modifiers Operators
42 4.2 0.42 .42  A numeric constant. 
"Hello" 'Hello'  A string constant. 
NdX  Roll N dice with X sides numbered 1 through X. 
Nd%  Roll N dice with 100 sides numbered 1 through 100. 
NdXY  Roll N dice with X sides numbered 1 through X/Y with Y sides of each value. 
NdXZ  Roll N dice with X sides numbered 0 through X1. 
Nd%Z  Roll N dice with 100 sides numbered 0 through 99. 
NdXYZ  Roll N dice with X sides numbered 0 through X/Y1 with Y sides of each value. 
NdF.1  Roll N FUDGE dice with 1 side worth +1, 1 side worth 1, and 4 sides worth 0. 
NdF NdF.2  Roll N FUDGE dice with 2 sides worth +1, 2 sides worth 1, and 2 sides worth 0. 
NdF.3  Roll N FUDGE dice with 3 sides worth +1 and 3 sides worth 1. 
NdP  Roll N Poker dice with sides labeled 9, 10, J, Q, K, and A. 
NdC  Roll N Chess dice with sides labeled Pawn, Knight, Bishop, Rook, Queen, and King. 
NdCA  Roll N Crown & Anchor dice with sides labeled Crown, Anchor, Spade, Club, Diamond, and Heart. 
Nd[Zodiac]  Roll N Zodiac dice with sides labeled Aries through Pisces. 
Nd[Planet]  Roll N Planet dice with sides labeled Sun, Moon, Mercury through Pluto, Ascending Node, and Descending Node. 
Nd{A₁,A₂,...,Aₓ}  Roll N dice with X sides labeled A₁ through Aₓ. 
Nd{A₁,A₂,...,AₓD}  Roll N dice with X sides labeled A₁ through Aₓ, delimited by D. 
NdXu  Make sure all rolled values are unique. N must be less than or equal to the number of faces. May precede the following. 
NdXkY NdXkYH  Use only the Y highest values rolled. 
NdXkYL  Use only the Y lowest values rolled. 
NdXkYC  Use only Y of the values rolled, chosen randomly. 
NdXYH  Subtract the Y highest values rolled. The H is required to differentiate from subtraction. 
NdXYL  Subtract the Y lowest values rolled. 
NdXYC  Subtract Y of the values rolled, chosen randomly. 
NdX+YH  Doublecount the Y highest values rolled. The H is required to differentiate from addition. 
NdX+YL  Doublecount the Y lowest values rolled. 
NdX+YC  Doublecount Y of the values rolled, chosen randomly. 
( expr )  Use parentheses to override operator precedence. 
+ factor  Unary plus. 
 factor  Negation. 
# factor  Turn factor into a number. 
$ factor  Turn factor into a string. 
expr . expr  String concatenation. 
expr : expr  String concatenation with spaces. 
expr + expr  Addition. 
expr  expr  Subtraction. 
expr * expr  Multiplication. 
expr / expr  Division. 
expr \ expr  Integer division. 
expr % expr  Modulus. 
expr x expr  Repetition. 
dX API
To use dX in your own application, simply make a GET or POST request to this page
(http://www.kreativekorp.com/dX/
) with the following parameters:
Parameter  Req/Opt  Value  Description 

roll 
required  any valid string  The dice expression to roll. 
format 
required  php 
Produce output in the format of PHP's print_r() function. 
json 
Produce output as a JSON array.  
xml 
Produce output as an XML property list.  
html 
Produce the rendered HTML without any boilerplate.  
resultstrings 
Produce only the results of each roll in plain text.  
optimize 
optional  1 , true , t , yes , y , on 
Simplify expressions after parsing. 
0 , false , f , no , n , off 
Keep expressions exactly as parsed.  
evaluate 
optional  1 , true , t , yes , y , on 
Return calculated results for every expression. 
0 , false , f , no , n , off 
Only return the syntax tree; do not return results.  
expound 
optional  1 , true , t , yes , y , on 
Return the entire syntax tree. 
0 , false , f , no , n , off 
Only return results; do not return the syntax tree.  
debug 
optional  0 , false , f , no , n , off 
Normal operation. 
1 , true , t , yes , y , on 
Returns the syntax tree as parsed, as parsed with results, simplified, and simplified with results.
Overrides the settings of optimize , evaluate , and expound .
Also, the PRNG is seeded so that both original and simplified expressions return the same results.
