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HilbertMat

create a Hilbert matrix over QQ

Syntax
HilbertMat(N: INT): MAT over QQ

Description
This function returns the n -by- n Hilbert matrix over QQ .

Example
/**/  HilbertMat(3);
matrix(QQ,
 [[1, 1/2, 1/3],
  [1/2, 1/3, 1/4],
  [1/3, 1/4, 1/5]])