In Maxima terminology, the expression has already been "evaluated"
(variable values substituted, functions called) and "simplified" (put into
quasi-canonical form). What you want to do is calculate its floating-point
value:
ex: 2*(1/2 - log(2)/2);
float(ex) => .3068...
or
ex, numer => .3068...
On Tue, Aug 21, 2012 at 10:25 AM, Andrew Martin <mr.a.martin at gmail.com>wrote:
> I have an expression including log().
>
> 2*(1/2 - log(2)/2);
>
> How can I make maxima evaluate the expression (hence returning approx
> 0.307)?
>
> I've looked at the log simplification flags, simp and ev, but they
> don't seem to have the effect I want.
>
> Cheers,
>
> Andrew
>
> --
> Andrew Owen Martin
> PhD Cand. at Goldsmiths, University of London (ma901am)
> Investigating Enactivism with Sensory Substitution
> M: 07901 65 35 28
> http://aomartin.co.uk
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