On 3/29/10 3:49 PM, Stavros Macrakis wrote:
> Leo,
>
> I suppose (1) is the most user friendly, though of course there are
> natural groupings:
>
> %pi, %e, %i, %phi, %gamma, etc. -- "Error: Cannot set mathematical
> constants to values; for numerical evaluation, see ? float and ? bfloat."
> inf, minf, etc. -- "Error: %s is a system-defined constant and cannot
> be set to a value; see ? %s; to substitute a specific value, see ?
> substitute" (note that zeroa should never be returned by a Maxima
> function, which is why I didn't include it in this list)
> und, all, false, true, zeroa, etc. -- "Error: %s is a system-defined
> constant and cannot be set to a value; see ? %s" (we should add a
> documentation string to 'all', btw)
I didn't know that we could not assign a value to all. What about
plus and minus? We can currently assign values to these. I've done
this by accident before and then wondered a bit why one-sided limits
weren't working. :-)
Ray