Octave

Look up octave in Wiktionary, the free dictionary.

Wikisource has the text of the 1911 Encyclopædia Britannica article Octave.

An octave, in music, is the interval between one musical pitch and another with half or double its frequency.

'Octave' may also refer to:

Computing

• GNU Octave, a program for performing numerical analysis, mostly compatible with MATLAB
• OCTAVE, Operationally Critical Threat, Asset, and Vulnerability Evaluation framework developed by Carnegie Mellon and most commonly used in the defense industry.

Music

• Octave (album), an album by The Moody Blues
• The Octāves, an all-male a cappella group from the University of Richmond

Literature

• Octave (poetry), the first eight lines of a sonnet
• Sicilian octave, a distinct poetic form
• Ottava rima, an Italian verse form

People

• Octave Chanute, French-born American railway engineer and aviation pioneer.
• Octave Levenspiel, American professor of chemical engineering.
• Octave Mirbeau, French journalist.
• Octave Tassaert, French painter.

Science

• Octave (electronics) a doubling or halving of frequency, in physics and engineering
• Electromagnetic radiation can be divided into eighty-one octaves
• "The Law of Octaves" is a concept from the history of the development of the Periodic Table of Chemical Elements (see John Newlands or Mendeleev)
• an early term for octonion in algebra
• GNU Octave is a high-level programming language, primarily intended for numerical computations

Other

• Octave celebration, a major religious celebration in Luxembourg
• Octave (horse), a champion graded stakes race thoroughbred racehorse
• Octave (liturgical), an eight-day feast in the liturgical sense, especially in the Roman Catholic tradition

See also

• Hurricane Octave (disambiguation)

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