Symbolic math (Was: Derivative function)

[Dirk Eddelbuettel]

> Symbolic derivatives, no, e.g.,
> 
> y = derivative('sin(x)','x');  (derivative of sin(x) with respect to x)
> 
> is not available in Octave.  Someone wrote to this list recently (in 

Ben Sapp wrote code for symbolic math which is part of octave-forge. See e.g.

   http://octave.sourceforge.net/index/navsymbolic.html

Dirk

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