[sage-devel] Re: solving x*exp(-x)

2009-03-27 Thread Ondrej Certik
On Fri, Mar 27, 2009 at 10:07 AM, Robert Dodier wrote: > > On Mar 26, 10:58 pm, Ondrej Certik wrote: > >> So it seems Maxima can't do it. > > There has been recent work on the Lambert W function > which is part of the solution. I don't know if any solve > function can take advantage of that yet.

[sage-devel] Re: solving x*exp(-x)

2009-03-27 Thread Robert Dodier
On Mar 26, 10:58 pm, Ondrej Certik wrote: > So it seems Maxima can't do it. There has been recent work on the Lambert W function which is part of the solution. I don't know if any solve function can take advantage of that yet. If you are interested feel free to take it up on the Maxima mailing

[sage-devel] Re: solving x*exp(-x)

2009-03-26 Thread William Stein
On Thu, Mar 26, 2009 at 9:58 PM, Ondrej Certik wrote: > > Hi, > > today I had to solve some function for my chemical kinetics class, so > I tried it in sympy first and I was surprised it just worked: Do you have a nicely documented description of the algorithm sympy uses to implement its solve?