Apparently this is a derivative of DHB classes already included in
SciSmalltalk.
Just for the record, my SThub repository is a copy from the first
Squeak/Pharo port at http://www.squeaksource.com/DHBNumerical.html in
2011 (I don't know if SciSmalltalk existed then). For those wondering
about the book, there is a Google Books copy here:
http://books.google.com/books?id=QPX7_MP8w5UC&lpg=PP1&ots=bIsemiaRUC&dq=didier%20besset%20smalltalk&pg=PP1#v=onepage&q=&f=false
Cheers,
Thanks for the pointer. Because didier told me that he wants to give it
for free (I just resent him a mail about that).
Stef
