Sorry if that is a stupid question, but I didn't find the answer in the docu. I want to define a matrix (a 2-dimensional list) with a specific size. But I didn't find a way to set the size of the list at creation time. So how can I do this? -- Marco Herrn herrn at gmx.net (GnuPG/PGP-signed and crypted mail preferred) Key ID: 0x94620736