On Saturday 10 of July 2010 19:16:24 Paulo Gomes wrote:
> Hello,
>
> I have just succesfully built maxima 5.21.1 from source with gcl in
> Debian 5.0 lenny.
> I ran the test suite and all tests completed with 'Which was correct',
> except these two:
>
> Running tests in rtest16:
> ********************** Problem 180 ***************
> Input:
> float((2^60-1)/2^60)-1
> Result:
> -1.1102230246251565*10^-16
> This differed from the expected result:
> 0.0
> ********************** Problem 181 ***************
> Input:
> float((2^1000-1)/2^1000)-1
> Result:
> -1.1102230246251565*10^-16
> This differed from the expected result:
> 0.0
> 373/375 tests passed
> The following 2 problems failed: (180 181)
> Error summary:
> Errors found in /usr/share/maxima/5.21.1/tests/rtest16.mac, problems:
> (180 181)
> 2 tests failed out of 375 total tests.
I compile Maxima with SBCL on i686 Debian Lenny and I haven't such problems.
Mayby it depends as say Raymond Toy on given lisp implementation.
Zbigniew