Math jokes

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# Math jokes

Submitted by Brian Fink on Sat, 09/08/2012 - 23:31

Forums:

Q: What's the difference between an exorcist and a mathematician?

A: The exorcist casts out demons; the mathematician casts out nines.

Q: What's the difference between Calculus and Chaos?

A: A difference of formulas, but Chaos sometimes uses Calculus.

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## Versions

(v1) by Brian Fink 2012-09-08

## Re: Math jokes

Casting out nines is the process of finding the remainder of a number from division by 9. This is done by adding all the digits together. For example:

(18463 mod 9)=(3+6+4+8+1)=22

=(2+2)=4.

Look it up on Wikipedia.

## Re: Math jokes

I haven't understood about "nines". Does "nine" mean something other than "9"?

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Victor Porton - http://www.mathematics21.org

* Algebraic General Topology and Math Synthesis