Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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## Topic review (newest first)

anonimnystefy
2013-04-15 00:30:21

Okay.

bobbym
2013-04-15 00:27:26

Okay, I will run a few when I get clear of work.

anonimnystefy
2013-04-15 00:25:30

Cannot do. I'm on the phond and will probably not be able to get on the laptop for the day.

bobbym
2013-04-15 00:24:10

M code please?

anonimnystefy
2013-04-15 00:19:25

I tested for a few values and it works.

bobbym
2013-04-15 00:12:57

We could run a simulation. We could substitute numbers and at least see whether the formula works for a few examples. It can not prove the correctness of it but it sure can prove it false.

anonimnystefy
2013-04-15 00:09:39

Which kind of verification do you need?

bobbym
2013-04-15 00:08:13

Did you fix it? Now how about a verification?

anonimnystefy
2013-04-14 23:50:37

Hm, I just found an error concerning the numbers. Let me fix the formula.

bobbym
2013-04-14 23:48:22

Hmmm, have you tested this formula?

anonimnystefy
2013-04-14 23:47:09

No, I derived the formula myself using the PIE.

bobbym
2013-04-14 23:45:10

The Wikipedia article covers PIE but it does not explain the formula in post #8.

anonimnystefy
2013-04-14 23:38:41

Well, I do not know of any you could read, but there is an article on Wikipedia on it. Search for "inclusion exclusion principle".

bobbym
2013-04-14 23:37:05

Which common one would you recommend?

anonimnystefy
2013-04-14 23:32:24

It can be found in any common textbook. |AuB|=|A|+|B|-|AnB|.

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