Discovered, sort of. His method was nearly the same as the one brought to Tao, but he didn't make the connection to the full correlation between eigenvalues and

Discovered, sort of. His method was nearly the same as the one brought to Tao, but he didn't make the connection to the full correlation between eigenvalues and eigenvectors when dealing with real numbers. Tao used the method to explicitly prove this correlation when it was discovered by Denton, Parke and Zhang.