Home »
Public Forums »
archive »
Re: Quadruple Precision?
| Re: Quadruple Precision? [message #3367] |
Thu, 19 January 1995 05:40  |
sterner
Messages: 106
Registered: February 1991
|
Senior Member |
|
|
chris@mercury.sfsu.edu (Christopher McCarthy) writes:
> Is quadruple precision possible in IDL? EG. what I believe would be:
> real *16 in FORTRAN.
> On my machine (Sparc 1) double precision seems to be good to ~16 digits.
> (IDL's !dpi differed from Mathmatica's pi (to 30 placed) in the 16th digit.
> No I haven't bothered to look up the real pi to check mathmatica!)
> Any thoughts? Thanks.
Let me point you to the Pi Page:
http://www.ccsf.caltech.edu/~roy/pi.html
Here is a small extract from the 50,000 digit subpage:
3.
141592653589793238462643383279502884197169399375105820974944
592307816406286208998628034825342117067982148086513282306647
093844609550582231725359408128481117450284102701938521105559
644622948954930381964428810975665933446128475648233786783165
271201909145648566923460348610454326648213393607260249141273
724587006606315588174881520920962829254091715364367892590360
011330530548820466521384146951941511609433057270365759591953
092186117381932611793105118548074462379962749567351885752724
891227938183011949129833673362440656643086021394946395224737
190702179860943702770539217176293176752384674818467669405132
There is also a link to a 1,250,000 digit page if 50,000
are not enough.
Ray Sterner sterner@tesla.jhuapl.edu
The Johns Hopkins University North latitude 39.16 degrees.
Applied Physics Laboratory West longitude 76.90 degrees.
Laurel, MD 20723-6099
WWW Home page: ftp://fermi.jhuapl.edu/www/s1r/people/res/res.html
|
|
|
|
Current Time: Fri Dec 05 05:35:49 PST 2025
Total time taken to generate the page: 0.01320 seconds
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
