cbicon.png CALCULUS Understanding Its Concepts and Methods

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Function

A function f is a rule that assigns to each element x of a set an element f(x) of a second set.

$\bullet $The first set is the domain of f.

$\bullet $The element f(x) is the value of f at x.

A function of two variables is a rule f that assigns to each pair (x,y) in a set of pairs an element f(x,y).

$\bullet $The set of pairs is the domain of f.

$\bullet $The element f(x,y) is the value of f at (x,y).


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Copyright © 2006 Darel Hardy, Fred Richman, Carol Walker, Robert Wisner. All rights reserved. Except upon the express prior permission in writing, from the authors, no part of this work may be reproduced, transcribed, stored electronically, or transmitted in any form by any method.

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