troubleshooting Question

Easy maths question

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xenium asked on
Math / Science
15 Comments2 Solutions156 ViewsLast Modified:
In a network with N nodes, what's the maximum number of connections you can make?

eg N=2, gives 1 connection, N=3 gives 3, N=4 gives 6, N=5 gives 10, N=6 gives lots etc

I think it's sum of N-i from i=1 to N-1

How many when N=100?

Can I simplify this in terms of N only and what's the function called in maths and/or in Excel or google sheets?

Probably easy but it's been years since i did maths.

Thanks!
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