Ilya Zakharevich on Thu, 26 Oct 2006 03:28:15 +0200


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[BUG?] log(2) flip/flopping 

I discovered this by trying to investigate mysterious failures of
test suite of Math::Pari:

    ? log(2)
    %1 = 0.6931471805599453094172321215
    ? \p 38
       realprecision = 38 significant digits
    ? log(2)
    %2 = 0.69314718055994530941723212145817656808
    ? \p 58
       realprecision = 67 significant digits (58 digits displayed)
    ? log(2)
    %3 = 0.6931471805599453094172321214581765680755001343602552541207
    ? \p 38
       realprecision = 38 significant digits
    ? log(2)
    %4 = 0.69314718055994530941723212145817656807

Is this change between ...08 and ...07 as expected?

The code is in constlog2()...

Thanks,
Ilya