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I'm trying to get the number of permutations from a table that looks like this:

enter image description here is it (number of providers) * (number of machine categories) * (proxy providers) * (proxy subnets) * (websites)?

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abbood
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  • It's not obvious (to me at least) what a "permutation from a table" is. There is no row that has $P2$ and $PS4$...is that relevant? – lulu Apr 12 '17 at 10:26
  • @lulu well this table isn't comprehensive... that's the point of the question... ie there could be a row that has a p2 and a ps4.. ok I guess the question is: what is the maximum amount of permutations? – abbood Apr 12 '17 at 10:31
  • Ok. In that case, yes. Just multiply the number of options in each category, as you suggest. – lulu Apr 12 '17 at 10:43
  • @lulu and so how is that described in fancy mathematical notational format? help me out here i'm making a presentation and I wanna give the folks the impression that I'm a smart guy :) – abbood Apr 12 '17 at 11:01
  • Permutations $=\prod_{i=1}^kn_i$ where there are $k$ categories and $n_i$ denotes the number of options in each category. – lulu Apr 12 '17 at 11:05
  • one last quesiton @lulu: what software do you use to produce that mathematical stuff? ie this (∏ki=1ni=∏i=1kni )i wanna sound and look smart you know – abbood Apr 12 '17 at 11:05
  • also is there a resource online or some calculator app or something that can calculate the number of those permutations, if i use the same format you suggested? – abbood Apr 12 '17 at 11:08
  • Sure. here is a good tutorial on formatting for this site. The code I used was "=\prod_{i=1}^kn_i" surrounded by dollar signs (so the compiler knows it has to do some formatting. – lulu Apr 12 '17 at 11:08
  • http://www.wolframalpha.com/ is a good online resource for symbolic computation. It may take a while to learn how to ask it questions of this type but if you are used to Mathematica the language and syntax should be familiar. – lulu Apr 12 '17 at 11:10
  • @lulu interesting.. i used the formatter on mathJax, and I got exactly what you showed me, however as soon as I pasted the ascii code into slack.. i got some gibberish.. i'm guessing the outpout of this math jax needs to be put in an application that understand that formatting – abbood Apr 12 '17 at 11:11
  • never mind i understood what's going on now – abbood Apr 12 '17 at 11:13
  • so humour me @lulu, what would the above formula look like on the wolframalpha.com input? – abbood Apr 12 '17 at 11:14
  • Sorry, running out to catch a plane. There are plenty of online tutorials for Mathmatica and such. Good luck! – lulu Apr 12 '17 at 11:24
  • Let us continue this discussion in chat. – abbood Apr 12 '17 at 11:25
  • As I say, I can't talk any more. Good luck! – lulu Apr 12 '17 at 11:35

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