With $X$ being a matrix, is there a general name for the expression $X^TX$?
$\endgroup$ 01 Answer
$\begingroup$This is called the Gram matrix (or Gramian matrix)
$\endgroup$What is $X^TX$ called where $X$ is a matrix?
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With $X$ being a matrix, is there a general name for the expression $X^TX$?
$\endgroup$ 0This is called the Gram matrix (or Gramian matrix)
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