## Version 1.1.0

12 April 2013

Recent Changes

• Integer
• Single
• Double
• Single Complex
• Double Complex

### YM11 Generate a random sparse matrix

These subroutines generate an $m$ by $n$ random sparse matrix with user-speciﬁed options such as structural nonsingularity and bandedness. The matrix is held in a packed form in a standard sparse matrix format, and there is an option to write it to a ﬁle in Rutherford Boeing format (Report RAL-TR-97-031).