Difference between revisions of "Potter's equation"

Latest revision as of 19:18, 23 October 2015

A Rubik's Cube

Potter's equation is a mathematical formula which computes the number of face cubes in a Rubik's cube of any size.

For an NxNxN Rubik's cube, the number of face cubes (r) is equal to:

Where is the Kronecker delta function.

Potter’s Equation applies in all cases where N >= 0. Obviously, the N = 1 case is trivial, as is the N = 0 case, though actually solving a 0*0*0 Rubik’s Cube presents a number of practical challenges, even for advanced Cubists. Attempting to solve a Rubik’s Cube where N < 0 is extremely dangerous, you could conceivably be thrown into a strange and highly disconcerting hyper-universe with no obvious way to return. WARNING! DO NOT ATTEMPT TO SOLVE A NEGATIVE-N RUBIK’S CUBE WITHOUT PROFESSIONAL TRAINING!

@@ Line 1: / Line 1: @@
+[[File:480px-Rubik's cube.svg.png|thumb|right|A Rubik's Cube]]
 '''Potter's equation''' is a mathematical formula which computes the number of face cubes in a [[Rubik's cube]] of any size.
 == Equation ==
-For an NxNxN Rubik's cube, the number of face cubes (R) is equal to:
+For an NxNxN Rubik's cube, the number of face cubes (r) is equal to:
 : [[File:Potter.png|300px]]
-Where [[File:Delta.png|25px]] is the Kronecker delta function.
+Where [[File:Delta.png|25px]] is the [[Kronecker]] delta function.
 == Notes==
@@ Line 13: / Line 15: @@
 *Potter’s Equation is in no way related to [[Harry Potter]].
+== See also ==
+* [[Erin's equation]]