R help - Oct 2008 - derivatives and integrals in R

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Hi all,

Can anyone recommend a good reference for taking scalar and matrix 
derivatives in R, and also doing integration in R.  I've searched the 
list and have not come across anything thus far.  Thanks in advance,

David

-- 
======================================================================David
Kaplan, Ph.D.
Professor
Department of Educational Psychology
University of Wisconsin - Madison
Educational Sciences, Room, 1061
1025 W. Johnson Street
Madison, WI 53706

email: dkaplan at education.wisc.edu
homepage:
http://www.education.wisc.edu/edpsych/default.aspx?content=kaplan.html
Phone: 608-262-0836