NAME                      STRUCTURE

TSLS       Toeplitz (real) (user interface to TSLS1)
TSLS1      Toeplitz (real)
TSLC       Toeplitz (complex) (user interface to TSLC1)
TSLC1      Toeplitz (complex)
CSLC       Circulant (complex)
CQRS       Column-circulant (real) (orthogonal factorization)
CQRC       Column-circulant (complex) (orthogonal factorization)
GSLS       Block-Toeplitz (real general blocks) (user interface
           to TGSLS1)
TGSLS1     Block-Toeplitz (real general blocks)
TGSLC      Block-Toeplitz (complex general blocks) (user interface
           to TGSLC1)
TGSLC1     Block-Toeplitz (complex general blocks)
CTSLC      Block-circulant (complex Toeplitz blocks)
CCSLC      Block-circulant (complex circulant blocks)
CGSLC      Block-circulant (complex general blocks)
SALWC      Block-circulant (complex) (service routine for computing
           direct or inverse discrete Fourier transformations)
CTGSLC     3-level block-circulant (TG blocks)
CCTSLC     3-level block-circulant (CT blocks)
CCCSLC     3-level block-circulant (CC blocks)
CCGSLC     3-level block-circulant (CG blocks)

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