On Tue, Dec 9, 2008 at 9:48 PM, Lie Ryan <[EMAIL PROTECTED]> wrote:
> Why don't we create a DecimalFloat datatype which is a variable-width
> floating point number. Decimal is variable precision fixed-point number,
> while the plain ol' float would be system dependent floating point.
Decimal is *a
Lie Ryan wrote:
> On Tue, 09 Dec 2008 12:15:53 -0500, Steve Holden wrote:
>
>> Is anyone aware of any implementations that use other than 64-bit
>> floating-point? I'd be particularly interested in any that use greater
>> precision than the usual 56-bit mantissa. Do modern 64-bit systems
>> implem
On Tue, 09 Dec 2008 12:15:53 -0500, Steve Holden wrote:
> Is anyone aware of any implementations that use other than 64-bit
> floating-point? I'd be particularly interested in any that use greater
> precision than the usual 56-bit mantissa. Do modern 64-bit systems
> implement anything wider than
On Tue, Dec 9, 2008 at 5:24 PM, Mark Dickinson <[EMAIL PROTECTED]> wrote:
> I don't know of any. There are certainly places in the codebase that
> assume 56 bits are enough. (I seem to recall it's something like
> 56 bits for IBM, 53 bits for IEEE 754, 48 for Cray, and 52 or 56 for VAX.)
Quick c
> Is anyone aware of any implementations that use other than 64-bit
> floating-point?
As I understand you are asking about Python implementations:
sure, the gmpy package supports arbitrary-precision floating point.
> I'd be particularly interested in any that use greater
> precision than the usua
Mark Dickinson wrote:
> On Tue, Dec 9, 2008 at 5:15 PM, Steve Holden <[EMAIL PROTECTED]> wrote:
>> precision than the usual 56-bit mantissa. Do modern 64-bit systems
>> implement anything wider than the normal double?
>
> I may have misinterpreted your question. Are you asking simply
> about what
On Tue, Dec 9, 2008 at 5:15 PM, Steve Holden <[EMAIL PROTECTED]> wrote:
> precision than the usual 56-bit mantissa. Do modern 64-bit systems
> implement anything wider than the normal double?
I may have misinterpreted your question. Are you asking simply
about what the hardware provides, or about
On Tue, Dec 9, 2008 at 5:15 PM, Steve Holden <[EMAIL PROTECTED]> wrote:
> Is anyone aware of any implementations that use other than 64-bit
> floating-point? I'd be particularly interested in any that use greater
> precision than the usual 56-bit mantissa. Do modern 64-bit systems
> implement anyth
Is anyone aware of any implementations that use other than 64-bit
floating-point? I'd be particularly interested in any that use greater
precision than the usual 56-bit mantissa. Do modern 64-bit systems
implement anything wider than the normal double?
regards
Steve
--
Steve Holden+1 571
