Given a set 
of 
vectors (points in 
), the Gram matrix 
is the matrix of all possible inner products of 
, i.e.,
 |
where 
denotes the transpose.
The Gram matrix determines the vectors 
up to isometry.
Gram Matrix
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Cite this as:
Weisstein, Eric W. "Gram Matrix." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GramMatrix.html