Step Function

In mathematics, a function on the real numbers is called a step function (or staircase function) if it can be written as a finite linear combination of indicator functions of intervals. Informally speaking, a step function is a piecewise constant function having only finitely many pieces.

Read more about Step Function:  Definition and First Consequences, Examples, Properties

Famous quotes containing the words step and/or function:

    We are only what we are; not what we would be; nor every thing we hope for. We are but a step in a scale, that reaches further above us than below.
    Herman Melville (1819–1891)

    No one, however powerful and successful, can function as an adult if his parents are not satisfied with him.
    Frank Pittman (20th century)