Encyclopedia > Square-integrable

Article Content

Square-integrable

A real- or complex-valued function of a real variable is square-integrable on an interval if the integral over that interval of the square of its absolute value is finite. The set of all measurable functions that are square-integrable forms a Hilbert space.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

BBC News 24

... to promote the channel through their ordinary channels BBC1 and BBC2, using terrestrial signals, and this is seen by some as influential (to a certain limited extent) in ...