A symmetric, square, Hankel matrix Ai,j= 1/( 2(N-i-j+3/2)), for order N.


The eigenvalues of A cluster around PI/2 and -PI/2.


  1. This generator is adapted from Nicholas J. Higham's Test Matrix Toolbox.
  2. This example was Invented by F.N. Ris.
  3. J.C. Nash, Compact Numerical Methods for Computers: Linear Algebra and Function Minimisation, second edition, Adam Hilger, Bristol, 1990 (Appendix 1).

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Page created 1997-03-03, last modified 2000-08-06. [ ]