Re: [Boost-users] math tools roots

Subject: Re: [Boost-users] math tools roots
From: John Maddock (boost.regex_at_[hidden])
Date: 2011-10-09 13:21:00

> I believe that there is a bug in eps_tolerance implementation. At line 34 
> of
> toms748_solve.hpp one can see:
>
> return (fabs(a - b) / (std::min)(fabs(a), fabs(b))) <= eps;
>
> When both a and b equal zero this condition is evaluated to a false 
> instead
> of a true. Left hand of condition is NaN and the right one is a floating-
> point number hence the result is false.

Will fix: can you please file a bug report at svn.boost.org so I don't 
forget?

Thanks, John.