en.wikipedia.org/wiki/Function_(mathematics)

For an example of a function, let X be the set consisting of four shapes: a red
triangle, a yellow rectangle, a green ...

www.mathsisfun.com/sets/function.html

Example: "Multiply by 2" is a very simple function. ... Example: this tree grows 20
cm every year, so the height of the tree is related to its age using the function h:.

mathinsight.org/function_examples

Basic examples of functions illustrating the definition of a function.

www.khanacademy.org/math/algebra/algebra-functions/evaluating-functions/v/what-is-a-function

Functions assign a single unique output for each of their inputs. In this video, we
see examples of various kinds of functions.

www.cut-the-knot.org/do_you_know/FunctionExamples.shtml

Examples of functions - numeric and not numeric. In a compact form a function is
a well defined unidirectional dependency, a concept of which I shall provide ...

www.abstractmath.org/MM/MMFuncExamples.htm

For example, id Z ( 42 ) = 42 . The identity function on a set A can be thought of as
the function that does nothing to each element of A. The identity function on R ...

www.purplemath.com/modules/fcns.htm

In other words, if you can enter it into your graphing calculator, then it's a function.
The calculator can only handle functions. For example, 2y + 3x = 6 is a function ...

www.drdelmath.com/special_topics/Functions - Examples - Introduction.pdf

I:\Mathematics\WordDocuments\Functions - Examples - Introduction.doc. 1.
Examples of ... These examples illustrate that the rule for a function need not be.

fresh2refresh.com/c-programming/c-function/

C tutorial for beginners with examples - Learn C programming language covering
basic C, literals, data types, C functions with examples etc.

www.w3schools.com/js/js_functions.asp

Example. function myFunction(p1, p2) { return p1 * p2; // The function returns the
... A JavaScript function is defined with the function keyword, followed by a ...