Hi Brent 'Dax' Royal-Gordon,
option. Yet the Leibniz summation for PI
http://www.parrotcode.org/examples/
still appears to be performing its calculations using single floats and
continues to print 3.141591.
Parrot usually uses double as its floating-point type. The problem is
probably
This may be the long double version that I compiled :-)
Note: I've rebuilt parrot-latest.tar.gz (I believe it was
2004-11-16_00) at default settings on Debian unstable 2.6.8.1 i686
GNU/Linux. I'm still printing floats that appear to be 128-bit precision!
Regards,
Adam
Adam Warner [EMAIL PROTECTED] wrote:
On a windows binary I downloaded the precision is indeed double (~16
decimal places). With my current Linux binary it's extreme (here's 60
decimal places):
PI is (very) approximately:
3.1415906535896946927266526472521945834159851074218750
Hi Leopold Toetsch,
PI is (very) approximately:
3.1415906535896946927266526472521945834159851074218750
^
3.141592653589793238462643383279502884197169399375105820974944
You might probably want to run more iterations ;) And you'll never get
60 digits out of long
Adam Warner [EMAIL PROTECTED] wrote:
In other words sprintf is printing trailing garbage:
Well, the underlaying architecture is defining the precision of floats.
And due to the binary nature of the representation of floats they are
mostly just and inprecise approximation of a given float value
Another way is to count the bits, as in the following:
.sub _main
N1 = 1
N2 = 0.5
I0 = 0
REPEAT:
I0 = I0 + 1
N2 = N2 / 2
N3 = N1 + N2
ne N1, N3, REPEAT
print I0
print bits precision\n
end
.end
On Wed, 17
Hi all,
I've taken a first look at Parrot and I'm very impressed. I'd like to
perform some micro-benchmarking of double floating point code. I have the
latest CVS version of parrot. I've compiled it upon Debian unstable x86
with the:
perl Configure.pl --floatval=double
option. Yet the
Adam Warner [EMAIL PROTECTED] wrote:
I've taken a first look at Parrot and I'm very impressed. I'd like to
perform some micro-benchmarking of double floating point code. I have the
latest CVS version of parrot. I've compiled it upon Debian unstable x86
with the:
perl Configure.pl
