14 Sep 2000 09:52:48 -0700
>>>>> "MM" == Martin Maechler <email@example.com> writes:
MM> 2) For Computer Scientists : "Differentiation" / Symbolic
MM> Improve the possibilities of D() and deriv(), and document
MM> them. Make these user-extensible.
MM> Think about the hessian in addition to the gradient.
Even automating/specifications for numerical derivatives would be
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