Function notation is a method of writing algebraic variables as functions of other variables. Most often, functions are portrayed as a set of x/y coordinates, with the vertical y-axis serving as a function of x. For exam...

www.reference.com/world-view/function-notation-371975b13098de16

Interval notation is a method used to write the domain and range of a function. In interval notation, there are five basic symbols to be familiar with: open parentheses (), closed parentheses [], infinity (imagine an 8 s...

www.reference.com/world-view/domain-range-interval-notation-c3b68e00f6e87620

Mathematical equations called functions use input and output replace the variables in an equation. The input is the known variable, while the output is the solution. Use functions any time a variable (x) transforms in a ...

www.reference.com/world-view/input-output-mean-math-47a57db89ac7a3eb

Piecewise functions are solved by graphing the various pieces of the function separately. This is done because a piecewise function acts differently at different sections of the number line based on the x or input value.

www.reference.com/world-view/solve-piecewise-functions-e1187617efaf5313

Examples of mathematical functions include y = x + 2, f(x) = 2x, and y = 3x - 5. Any mathematical statement that relates an input to one output is a mathematical function. Many simple mathematical functions are written a...

www.reference.com/world-view/examples-mathematical-functions-f6e7a0579ae7db7b

To find the derivative of a sin(2x) function, you must be familiar with derivatives of trigonometric functions and the chain rule for finding derivatives. You need scratch paper and can use a graphing calculator to check...

www.reference.com/world-view/derivative-sin2x-452c96d163bd2b0a

HP and other computer manufacturers use function (fn) keys on compact keyboards to combine two keyboard functions into one in order to save on space. They are typically labeled F1 through F12.

www.reference.com/world-view/hp-laptop-function-keys-a8defcaaae7d1370