# what is the function that the same as perms however can used n more than 10?

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sharifah shuthairah syed abdullah
on 3 Jul 2018

Commented: sharifah shuthairah syed abdullah
on 4 Jul 2018

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### Accepted Answer

OCDER
on 3 Jul 2018

I think you need to make your own function of perms, but one that only returns 1 of many permutations at a time. When you past n = 10, you'll run out of memory fast.

3.5 GB n = 11

46.0 GB n = 12

647.6 GB n = 13

9764.0 GB n = 14

One suggestion is to make a classdef object that track the ith permutation and will continuously return the the next permutation. But read this link as your attempt to compute permutations for n >> 11 gets fairly impossible...

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Stephen23
on 3 Jul 2018

One option would be to use a permutation generator, which does not store all permutations in memory:

etc.

I leave it up to the reader to decide if running through all permutations is tractable or not.

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