Arrangement of n objects in a n x n square

Posted by Hwang on Stack Overflow See other posts from Stack Overflow or by Hwang
Published on 2010-03-17T14:18:45Z Indexed on 2010/03/17 14:21 UTC
Read the original article Hit count: 248

Filed under:

mathematics

|

combinations

|

permutation

if have multiples object, how to arrange it so that each number of object in row x column will form a near square?

exp:14 objects arrange to something like this:

© Stack Overflow or respective owner

Related posts about mathematics

Deriving arrays in mathematics

as seen on Stack Overflow - Search for 'Stack Overflow'
So I found some similarities between arrays and set notation while learning about sets and sequences in precalc e.g. set notation: {a | cond } = { a1, a2, a3, a4, ..., an} given that n is the domain (or index) of the array, a subset of Natural numbers (or unsigned integer). Most programming languages… >>> More
Extreme Optimization Numerical Libraries for .NET – Part 1 of n

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
While many of my colleagues are fascinated in constructing the ultimate ViewModel or ServiceBus, I feel that this kind of plumbing code is re-invented far too many times – at some point in the near future, it will be out of the box standard infra. How many times have you been to a customer site and… >>> More
Street-Fighting Mathematics

as seen on Dr Dobbs - Search for 'Dr Dobbs'
Sanjoy Mahajan's new book lays out practical tools for educated guessing and down-and-dirty problem-solving Problem solving - Math - Recreations - Competitions - Methods and Theories >>> More
The Numerical ‘Magic’ of Cyclic Numbers

as seen on How to geek - Search for 'How to geek'
If you love crunching numbers or are just a fan of awesome number ‘tricks’ to impress your friends with, then you will definitely want to have a look at cyclic numbers. Dr Tony Padilla from the University of Nottingham shows how these awesome numbers work in Numberphile’s latest… >>> More
How Big Is a Billion? [Video]

as seen on How to geek - Search for 'How to geek'
A billion is a billion except, when it isn’t. Depending on where and when you were raised and educated, the world “billion” is some magnitudes different–read on to see the difference between a billion in long and short number systems. [via Geeks Are Sexy] Here’s… >>> More

Related posts about combinations

combinations algorithm

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to make simple sorting algorithm. given the input "abcde", I would like the output below. could you tell me the algorithm for that? arr[0] = "a" arr[1] = "ab" arr[2] = "ac" arr[3] = "ad" arr[4] = "ae" arr[5] = "abc" arr[6] = "abd" arr[7] = "abe" ... arr[n] = "abcde" arr[n+1] = "b" arr[n+2]… >>> More
Algorithm to return all combinations of k elements from n

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to write a function that takes an array of letters as an argument and a number of those letters to select. Say you provide an array of 8 letters and want to select 3 letters from that. Then you should get: 8! / ((8 - 3)! * 3!) = 56 Arrays (or words) in return consisting of 3 letters each. >>> More
Getting the excluded elements for each of the combn(n,k) combinations

as seen on Stack Overflow - Search for 'Stack Overflow'
Suppose we have generated a matrix A where each column contains one of the combinations of n elements in groups of k. So, its dimensions will be k,choose(n,k). Such a matrix is produced giving the command combn(n,k). What I would like to get is another matrix B with dimensions (n-k),choose(n,k), where… >>> More
What are the common Control combinations in a terminal setting

as seen on Super User - Search for 'Super User'
I would like to have a good guide to the common Control key combinations in use in bash (and similar) shells and the combinations used by common programs in use in those shells. My particular motivation is to be able to run GNU screen on one computer, ssh to a second computer and use screen and irssi… >>> More
Statistics: combinations in Python

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to compute combinatorials (nCr) in Python but cannot find the function to do that in 'math', 'numyp' or 'stat' libraries. Something like a function of the type: comb = calculate_combinations(n, r) I need the number of possible combinations, not the actual combinations, so itertools.combinations… >>> More