"Dave Steffen" <dgsteffen@numerica.us> wrote in message news:17875.30459.786153.370572@yttrium.numerica.us...
Jody Hagins writes:
On Wed, 14 Feb 2007 09:59:46 -0700 Dave Steffen <dgsteffen@nu
Well, I don't think it's that bad. It's just not what I need for the mathematical work I do.
Maybe you can explain how it is to be used, then? Another perspective may help...
OK, I'll try. Is the problem "what is a relative error" or "how do I use the existing macros to test relative error"?
relative error of value f1 in comparison with value f2 id defined as rel_err = (f1-f2)/f1; If we little simplify the situation BOOST_CHECK_CLOSE_FRACTION( f1, f2, t ) checks that value f1 in comparison with value f2 do not exceed t. In really it a one more step. it checks that relative error in both direction (strong check) do not exceed t. Gennadiy