Subject: origin of names Z-matrix and Hessian

From: "R. L. W. M. Erens" <[email-masked]>
Date: Wed, 28 Feb 1996 16:45:14 +0100

Dear CCL'ers

Sorry if this question and its answer are already in the archives, but 
the infomeister server seems to busy to allow me to search them.
I'm just curious about the origin of the names
Hessian matrix and Z-matrix
(the latter one probably has German roots?).

Can someone tell me more about them?
Thanks in advance
-- 
drs. Roger L. W. M. Erens

Laboratorium voor Chemische Fysika
Nijenborgh 4
9747 AG  Groningen
The Netherlands

tel. +31 50 363 43 77
fax. +31 50 363 44 41
e-mail [email-masked]
WWW URL http://theochem.chem.rug.nl/~erens/