[R] deriv() to take vector of expressions as 1st arg?

t121 at gmx.net t121 at gmx.net
Fri Oct 30 17:46:38 CET 2009

Thanks a lot for the hints. The sapply method may work for me.

But how can I extract just the ".grad" expression from the return value
of the deriv function? (and secondly store in a matrix of expressions?)

Thanks again.

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