In mathematics, the sign function or signum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number. In mathematical expressions the sign function is often represented as sgn.
Read more about Sign Function: Definition, Properties, Complex Signum, Generalized Signum Function
Famous quotes containing the words sign and/or function:
“The sign of a Philistine age is the cry of immorality against art.”
—Oscar Wilde (1854–1900)
“... the function of art is to do more than tell it like it is—it’s to imagine what is possible.”
—bell hooks (b. c. 1955)