NSum[Cos[n]^6/n, {n, 1, Infinity}]
No more memory available.
Mathematica kernel has shut down.
NSum[Cos[n]^6/n^2, {n, 1, Infinity}]
No more memory available.
Mathematica kernel has shut down.
On Mar 24, 1:04=A0am, Vladimir Bondarenko <v...@[EMAIL PROTECTED]
> wrote:
> -----------------------------------------------------------------
>
> If the same bugs exists through numerous software releases,
> I think that is valuable public information.
>
> It just should not happen.
>
> -- Brad Cooper
>
> -----------------------------------------------------------------
> -- NOT FIXED BUGS ARE DANGEROUS: =A0THEY TEND TO GET MORE SEVERE --
> -----------------------------------------------------------------
>
> Quality of CASs is our #1 care.
>
> So our little demo continues.... Hello again from the VM machine
> which hopefully soon will be used by CAS manufacturers to the
> benefit of their customers.
>
> This example demonstrates YET ANOTHER case of bad defects in the
> Wolfram Research Quality Assurance process. =A0Consider, it cannot
> trap & fix efficiently regression bugs.
>
> In 1996, Mathematica 3.0 returns a correct answer, instantly.
>
> Then, the functionality is broken and never repaired.
>
> -----------------------------------------------------------------
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 N[Sum[Cos[n]^5/n, {n, 1, Infinity}]]
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 -0.200798
>
> -----------------------------------------------------------------
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 NSum[Cos[n]^5/n, {n, 1, Infinity}]
>
> -----------------------------------------------------------------
> VERSION =A0 =A0 =A0 =A0 =A0 OUTPUT =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0
=A0=
=A0 =A0 =A0 =A0 =A0 RESOLUTION
> -----------------------------------------------------------------
>
> Mathematica 6.0 =A0 CRASH =A0 <---------------------------------- BUG
>
> Mathematica 5.2 =A0 CRASH =A0 <---------------------------------- BUG
>
> Mathematica 4.2 =A0 CRASH =A0 <---------------------------------- BUG
>
> Mathematica 3.0 =A0 -0.200798 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0
=A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0OK
>
> -----------------------------------------------------------------
>
> CRASH =3D =A0 =A0 =A0 =A0 =A0 No more memory available.
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Mathematica kernel has shut down.
>
> -----------------------------------------------------------------
>
> NSum[Cos[n]^5/n^2, {n, 1, Infinity}]
>
> No more memory available.
> Mathematica kernel has shut down.
>
> -----------------------------------------------------------------
>
> Best wishes,
>
> Vladimir Bondarenko
>
> VM and GEMM architect
> Co-founder, CEO, Mathematical Director
>
> http://www.cybertester.com/=A0Cyber
Tester,
LLChttp://maple.bug-list.org/=
=A0 Maple Bugs Encyclopaediahttp://www.CAS-testing.org/=A0CAS
Testing
>
> -----------------------------------------------------------------
>
> "We must understand that technologies
> like these are the way of the future."
>
> -----------------------------------------------------------------
|
