Rational approximation link

From: brianjparker_at_[hidden]
Date: 2001-10-18 09:27:20

Just a quick note concerning the rational class- I see in the 
documentation that it was decided not to provide a rational 
approximation (from double) function as part of the library. 

A good public domain implementation of such a function that I have 
used previously is at 

http://www.netlib.org/c/frac

It allows one to provide a relative error bound on the approximation. 
It is in K&R C, but is easily convertible to C++ (just change the 
prototype and remove the fabs() declaration).

I think that it would be useful to add a link to this code in the 
rational documentation.

Cheers,

Brian Parker