On Fri, 26 Nov 2010, Elias Gabriel Amaral da Silva wrote:
Seems to yield the same precision for long double on both ia32 and amd64 - that is, just 20 digits. This seems too few, looking there: http://en.wikipedia.org/wiki/IEEE_754-2008#Basic_formats Shouldn't I expect at least more than 30 digits, on amd64?
long double would be binary80.
What is the trick for having 1/7 (or something else) with a precision closer to double's 52 digits?
You seem to be confusing binary digits with decimal digits. -- Marc Glisse