Orthogonal Functions
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Orthogonal Functions
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A set of functions, any two of which, by analogy to orthogonal vectors, vanish
if their product is summed by integration over a specified interval.
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For example, f(x) and g(x) are orthogonal in the interval x = a to x =
b if
The functions are also said to be normal if
many of which have great importance in mathematical physics, are the sine and cosine functions between zero and 2pi. </dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use