Small Hadamard Matrices

A Hadamard matrix is a square matrix with all entries equal to or , with its rows mutually orthogonal. Half of the corresponding pairs of entries in any two rows have the same sign and half have the opposite sign.
It is conjectured that a Hadamard matrix of order exists for all integers divisible by 4. However, many orders are unsolved, including 668, 716 and 892.


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


[1] N. J. A. Sloane. "A Library of Hadamard Matrices." (Nov 11, 2021)
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.