A Collection of Test Matrices in MATLAB

  • Authors:

  • Nicholas J. Higham

  • Affiliations:

  • -

  • Venue:
  • A Collection of Test Matrices in MATLAB
  • Year:
  • 1989

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Abstract

We present a collection of forty-four parametrized test matrices. The matrices are mostly square, dense, nonrandom, and of arbitrary dimension. The collection includes matrices with known inverses or known eigenvalues; ill-conditioned or rank deficient matrices; and symmetric, positive definite, orthogonal, defective, involuntary, and totally positive matrices. For each matrix we give a MATLAB M-file that generates it, and for small dimensions, a printout of the matrix, pictures of it, and a plot of its field of values.