Most recent change of Orthogonal

Edit made on September 30, 2013 by ColinWright at 17:05:23

Deleted text in red / Inserted text in green
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Two vectors, lines or other mathematical objects are orthogonal if they are perpendicular i.e at right angles.

If the dot product of two vectors is zero then they are said to be orthogonal.
Although this definition arises from the simple Euclidean space visualisation,
it nevertheless is still effective in more general settings, such as the
infinite dimensional vector space in which we perform the Fourier Transform.