[SciPy-user] precision question re float96 and float128

Lev Givon lev@columbia....
Tue Oct 2 12:04:14 CDT 2007


I have numpy 1.0.3.1 installed on a Pentium 4 system running Linux 2.6
and an Intel Core 2 Duo system running MacOSX 10.4.10. On the former,
the float96 datatype is defined; on the latter, float128. While
examining the machine limits with the finfo function on the
aforementioned hosts, I noticed that the limits for float96 and
float128 were identical. For example, finfo(float96).precision
and finfo(float128).precision both returned 18. Is this expected?
Shouldn't the precision of the latter be greater?

							L.G.



More information about the SciPy-user mailing list