math terms used in chess ?

What are all math terms that are used in chess talk.

I'm not aware of any.

+- 3.14

add me as a friend?

Good one.

I hear it all the time "The relative value of the rook is inversely proportional to the sum of the remaining pawns"

derivatives

Well, you can 'add' a piece to your attack. 

You can 'divide' the board into areas.

You can use 'diagonals.'

We talk about 'lines.'

Pieces have 'values.'

But really, I don't think we use mathematical terms in chess. We use common terms that have mathematical application in chess. 

Algebraic Notation, Rank (of a tensor), File (of  matrices), Square, Exchange (of indices), Promote (operator), Combinations, Permutations (as in chess engine searches).

Equality!

http://en.wikipedia.org/wiki/Evaluation_function

And calculations

could you give a example of this term being used in chess.

Loosely speaking, using Algebraic notation is similar to plotting or naming points in the first quadrant of the Cartesian Coordinate Plane.

Sure, but first you'd want to plot something like a value of a rook with respect to # of pawns and generate a function

Or maybe the rate of change of my rating is equal to some function of work and talent heh.

http://en.wikipedia.org/wiki/Taxicab_geometry

Not quite sure what that has to do with chess.

Square. [ooops, too late...]

The most useful meaning of this question would be: "What math terms are used in chess, with their mathematical meaning, not just the word itself?"  (So, "rank [of a tensor]" doesn't count, sorry...)  But even in this restricted sense, chess players are speaking mathematics when they use the term "game" (chess is a 2-player game, with positions (another term for nodes) and plies).  We talk about the [game] tree of analysis, and about the computational complexity of chess.  Computer chess is full of bona fide math terms, like retrograde analysis, backward induction, evaluation functions and algorithms).  We talk about whether chess will ever be solved.  Different problems in chess have even been taken up as serious mathematics, e.g. the knight's tour problem.  Many of these have important implications or applications in topology and combinatorics.

See the section on "Measures of distance in chess" and the link to the Reti endgame study.