Wednesday, June 4, 2008

THE Rubik's Cube( what is it?+algo what?)

"Rubik's Cube is a mechanical puzzle invented in 1974 by a Hungarian sculptor and professor of architecture Ernő Rubik . Originally called the "Magic Cube" by its inventor, this puzzle was renamed "Rubik's Cube" by Ideal Toys in 1980 and also won the 1980 German Game of the Year, special award for Best Puzzle. It is said to be the world's best-selling toy, with over 300,000,000 Rubik's Cubes and imitations sold worldwide." [source: wikipedia] :)
*Different methods have been developed to solve the cube with the use of algorithms.
***Hold up!!*** o_O
What are algoritms??

++ALGORITHM- It is formally a type of effective method in which a list of well-defined instructions for completing a task will, when given an initial state, proceed through a well-defined series of successive states, eventually terminating in an end-state.
**In other words, it is a sequence of instructions that when done in a certain number of repititions will accomplish a certain task.
Example of an Algorithm used on the standard cube:
Ri Di R D (right inverted, down iverted, right, down) -basic
+Right inverted- turn the right side of the cube counter clockwise as if the side is facing you
+Di- turn the down side of the cube counter clockwise as if the side is facing you
+R- Turn the right side of the cube clockwise" "
+D- turn the down side of the cube clockwise " "
When you repeat this 6 times, your cube will return to its original orientation.
To follow such algorithm, you must be aware about the parts of the cube, it's sides ,and the move notations. There are different representations used to indicate move notations ,but they basically mean the same thing.
for more info visit:

or

rubiks.com

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