This belongs to math.
2006-12-31 21:51:34 · 3 answers · asked by sagar G 1 in Science & Mathematics ➔ Mathematics
Permutation is the arrangement of symbols or objects into distinguishable orderings. Each unique ordering is called a permutation.
In combinatorial mathematics, a combination is an un-ordered collection of unique elements.
These are the definitions given at below links...
you don't need to go through all the material...
http://en.wikipedia.org/wiki/Permutations_and_combinations#Permutations
http://en.wikipedia.org/wiki/Permutations_and_combinations#Combinations
2006-12-31 23:25:02 · answer #1 · answered by Faraz S 3 · 1⤊ 0⤋
They are related, but not the same.
A permutation question would be something like "how many different 3-digit numbers could you get by rolling three six-sided dice?"
The answer would be 111, 112, 113, 114, 115 and so forth.
A combination question would be "Billy has 4 gummy bears, one red, one orange, one green and one yellow. Eating one at a time, how many different ways could he eat them all?"
Basically, in a combination, once a number or member of the set is used, it is no longer available. In a permutation, it can be used more than once.
2007-01-01 06:25:18 · answer #2 · answered by Regala 1 · 0⤊ 0⤋
Permutations are where order matters, and combinations are where it doesn't.
2007-01-01 06:27:31 · answer #3 · answered by Anonymous · 1⤊ 0⤋