1×1 {-1, +1} matrix of maximal determinant

|Det R| = 1×20

Ratio of |Det R| to Hadamard bound: 1

M=RTR=R RT: 

1

R: 

+

Notes:

  1. Hadamard matrix.
  2. Sylvester matrix.
  3. R is unique up to equivalence.
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Page created 6 March 2002.
Last modified 5 December 2003.
Comments: maxdet@indiana.edu