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Math notation and basic definitions

0.44MB. 0 audio & 25 images. Updated 2015-09-20.

Description

Mostly things that would be useful in programming and data analysis, like conventions for talking about matrices.

Sample (from 60 notes)

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Front define Nash equilibrium
Back in a situation in which each player has chosen a strategy and no player can benefit by changing strategies while the other players keep theirs unchanged, then the current set of strategy choices and the corresponding payoffs constitutes a Nash equilibrium> W: Stated simply, Amy and Will are in Nash equilibrium if Amy is making the best decision she can, taking into account Will's decision while Will's decision remains unchanged, and Will is making the best decision he can, taking into account Amy's decision while Amy's decision remains unchanged. Likewise, a group of players are in Nash equilibrium if each one is making the best decision possible, taking into account the decisions of the others in the game as long the other party's decision remains unchanged.
Tags
Front What is the sum of these two matrices?
Back  > i.e., they are calculated entrywise> images from Wikipedia
Tags MATH
Front What is 20 mod 5? 
Back 0 (there is nothing to subtract from 20 after multiplying 5 times 4) (http://en.wikipedia.org/wiki/Modulo_operation) 
Tags MATH

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