Orthogonal Basis (original) (raw)
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An orthogonal basis of vectors is a set of vectors 
that satisfy
and
where 
,
are constants (not necessarily equal to 1), 
is the Kronecker delta, and Einstein summation has been used.
If the constants are all equal to 1, then the set of vectors is called an orthonormal basis.
See also
Basis, Operator Spectrum, Orthogonal Vectors, Orthonormal Basis
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Cite this as:
Weisstein, Eric W. "Orthogonal Basis." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/OrthogonalBasis.html