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Re: [Axiom-developer] Re: Bug#263991: axiom: wrong calculation ofsqrt(2
From: |
William Sit |
Subject: |
Re: [Axiom-developer] Re: Bug#263991: axiom: wrong calculation ofsqrt(2.) |
Date: |
Sat, 07 Aug 2004 11:47:44 -0400 |
> Heiko Scheit <address@hidden> writes:
> [snipped]
> echo "digits(DIGITS); sqrt(2.)" | axiom
> One can see that for
> > DIGITS=121278-121280 the result is not correct. For 121290 digits the
> > result is OK again. As reference the output of Mathematica is given
> > in the last row.
> >
> > DIGITS | result
> > --------------------------------
> > 121275 | 8347436383 149
> > 121276 | 8347436383 14897
> > 121277 | 8347436383 148974
> > 121278 | 8347436382 1263421
> > 121279 | 8347436382 9853356
> > 121280 | 8347436383 114184622
> > 121290 | 8347436383 1489743406 4670264
> > --- | 8347436383 1489743406 467026400 (Mathematica output)
> [snipped]
I verified that NAG 2.3 version gives correct result for 121278-121280 (RedHat
9.0, i386 Pentium II (MMX) simulated on a Mac OS 10.2.8 using Virtual PC 6.01).
121278 8347436383 1489743
121279 8347436383 14897434
121280 8347436383 148974341
William
--
William Sit
Department of Mathematics..............Email: address@hidden
City College of New York..........................Tel: 212-650-5179
Convent Ave at West 138th Street..................Fax: 212-862-0004
New York, NY 10031............Axiom, A Scientific Computation Sytem
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