permutation meaning and example


by loserone+_+
Tags: math, mathematic, mathematics, permutation
loserone+_+
loserone+_+ is offline
#1
Jan1-13, 12:24 AM
P: 2
what is the permutation?
and like what example?
anyone knows?
Phys.Org News Partner Science news on Phys.org
SensaBubble: It's a bubble, but not as we know it (w/ video)
The hemihelix: Scientists discover a new shape using rubber bands (w/ video)
Microbes provide insights into evolution of human language
HallsofIvy
HallsofIvy is offline
#2
Jan1-13, 07:50 AM
Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 38,902
Do you mean "what is a permutation"? A permutation of a given list is simply a rearrangement of the list. For example, if the original list is "abc" then permutations are "acb", "bac", "bca", "cab", "cba", and, for completeness, we include the orignal list, "abc" as a permutation.
loserone+_+
loserone+_+ is offline
#3
Jan1-13, 08:32 AM
P: 2
i see,
so its just rearrange the list into random right?

I like Serena
I like Serena is offline
#4
Jan1-13, 09:20 AM
HW Helper
I like Serena's Avatar
P: 6,189

permutation meaning and example


Formally, a permutation is a 1-1 map of a set onto itself.
phinds
phinds is offline
#5
Jan1-13, 09:33 AM
PF Gold
phinds's Avatar
P: 5,720
Quote Quote by loserone+_+ View Post
i see,
so its just rearrange the list into random right?
No, it is NOT random. It is a set of all possible arrangements.

For combinations, on the other hand, order does not matter, so the combinations of abc are abc OR bca OR cab, etc --- but they are all counted as the same thing.
shubham sanjay
shubham sanjay is offline
#6
Jan11-13, 04:36 AM
P: 1
we can define permutation as-
1.NUMBER OF ORDERED SELECTION OF "K" OBJECTS OUT OF "N" DISTINCT OBJECTS WITHOUT REPETITION.OR.;
2.ORDERED SAMPLING OF K OBJECTS OUT OF N DISTINCT OBJECTS WITHOUT REPLACEMENT.OR
3.NUMBER OF PERMUTATION(ORDERED SAMPLING)OF K OBJECTS OUT OF N DISTINCT OBJECTS WITHOUT REPETATION...


Register to reply

Related Discussions
Permutation Calculus & Beyond Homework 6
Permutation help. Calculus & Beyond Homework 4
Conjugation of a permutation by a permutation in a permutation group Calculus & Beyond Homework 3
Permutation Precalculus Mathematics Homework 1
permutation 1 Introductory Physics Homework 4