Hey list,

I am trying to typeset the Verhulst equation which contains a Euler
constant which I cannot get to display correctly:

\placeformula[formula:Verhulst equation]
\startformula
\math{P(t) = \frac{K P_0 \Eulerconst^{rt}}
                  {K + P_0(\Eulerconst^{r t} - 1)}}
\stopformula

The location for the \Eulerconst just shows up blank with nothing there,
so I am assuming this is the wrong command. I am using ConTeXt
2012.11.16 under Ubuntu Precise.

In addition, the following formula does not typeset correctly. There is
no arrow linking 't' to infinity symbol:

\placeformula[formula:Limit of Verhulst equation]
\startformula
\math{\lim_{t\to\infty} P(t) = K.\,}
\stopformula

PS Please cc me, as I am not on the list currently.

-- 
Kip Warner -- Software Engineer
OpenPGP encrypted/signed mail preferred
http://www.thevertigo.com