[texhax] TeX for the Impatient source freely available

[Philip G. Ratcliffe]

> ...  We've decided to make the book available in source
> form, under the GNU Free Documentation License, as our way of supporting
> the community which supported the book in the first place.

Great!  That's very well spirited of you.  Thank you.  Let's hope people use
it!

While we're on matrices - a thread or two ago - page 205 (clearly indicated
via the table of contents - that's what they're for) again gives exactly
what was wanted.

Cheers,  Phil