From: Nikodemus Siivola <nikodemus@ra...>  20110323 18:42:48

On 17 January 2011 18:15, Andrey G. Grozin <A.G.Grozin@...> wrote: > Now there is a new testsuite failure with sbcl. It's rtest16, problem 385. > It's about floatingpoint calculation of zeta(%i+3) (%i is the imaginary > unit). sbcl produced a resulr with error of order 3*10^(9) instead of > expected 10^(15). Earlier versions of sbcl did not have this failure. > Looks like a regression. All the other lisps listed above also don't have > this particular failure (ecl has 2 failures in rtest8, this is another > story). Looks like something is calculated in single precision when it > should be done in double. Do you recall what's the latest version in which that test passed? (It fails with 1.0.44 as well.) Alternatively, if a Maxima wizard can reduce a testcase that doesn't involve Maxima  just shows an SBCL operation that returns the wrong value  what would help too. Cheers,  Nikodemus 