"Vladimir Bondarenko" <vb@[EMAIL PROTECTED]
> wrote in message
news:e39d4cd5-c4cb-4e80-b856-
> -----------------------------------------------------------------
>
> NIntegrate[Sec[z] Log[1 + Tan[z]], {z, 0, Pi/4}]
>
> 0.322628
>
> -----------------------------------------------------------------
>
> Integrate[Sec[z] Log[1 + Tan[z]], {z, 0, Pi/4}]
>
> -----------------------------------------------------------------
> VERSION OUTPUT RESOLUTION
> -----------------------------------------------------------------
>
> Mathematica 6.0 1.23639 - 1.68012 I <----------------- BUG #2
>
> Mathematica 5.2 Correct answer (0.322628) OK
>
hi Vladimir;
Mathematica 6.0.1 that I am using gives the same answer as 5.2 (the
correct
answer per your output above): So I guess this is fixed. (You might want
to
use the latest version of Mathematica for your tests, it is now at 6.0.2
as
I am sure you know)
In[7]:= $Version
NIntegrate[Sec[z]*Log[1 + Tan[z]], {z, 0, Pi/4}]
Out[7]= 6.0 for Microsoft Windows (32-bit) (June 19, 2007)
Out[8]= 0.32262825398426576
(ps. I noticed a "bug" right now in Mathematica, it says version is 6.0,
but
it is actually 6.0.1 that I am running !"
Nasser
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