Re: [boost] [math distributions]

Subject: Re: [boost] [math distributions]
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2008-11-29 06:19:48

> -----Original Message-----
> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On
> Behalf Of Thijs van den Berg
> Sent: 29 November 2008 09:59
> To: boost_at_[hidden]
> Subject: Re: [boost] [math distributions]
> >>> PS, I see no LambertW function in math::special_function. I'm sure
> >>> Knuth is going to be very upset! :)

I'm entirely ignorant of other uses this has apart from this

http://www.apmaths.uwo.ca/~rcorless/frames/PAPERS/LambertW/knuth&me.jpg

(And some very pretty 3D colorplots ;-)

http://en.wikipedia.org/wiki/Lambert_W_function

 gives some clues:

"The Lambert W function cannot be expressed in terms of elementary functions. It is useful in combinatorics, for instance in the enumeration of trees. It can be used to solve various equations involving exponentials and also occurs in the solution of time-delayed differential equations, such as y'(t) = a y(t − 1)."

But I'm sure you are right - Knuth will be very, very disappointed.

Anyone with nothing better to do fancy implementing this? :-))

Paul

---
Paul A. Bristow
Prizet Farmhouse
Kendal, UK   LA8 8AB
[phone], mobile [phone]
pbristow_at_[hidden]