Version 1.4.1

1st May 2013

Recent Changes

HSL_MC69 oﬀers routines for converting matrices held in a number of sparse matrix formats to the compressed sparse column (CSC) format used by many HSL routines. This format requires the entries within each column of $A$ to be ordered by increasing row index. For symmetric, skew symmetric or Hermitian matrices, only entries in the lower triangle are held. This format is the one used by many of the recent HSL packages; we shall refer to it as the standard HSL format.