Re: -- Wolfram Research QA process defect: Bug in Mathematica 6 - Integrate - 93 (Sqrt, Sin, Cos, No more memory available. Mathematica kernel has shut down., NEW regression bug)
- From: Bhuvanesh <BhuvaneshBhatt@xxxxxxxxx>
- Date: Mon, 3 Mar 2008 16:21:45 -0800 (PST)
On Mar 3, 2:48 am, Dave <f...@xxxxxxx> wrote:
Vladimir Bondarenko wrote:
-----------------------------------------------------------------
-- NOT FIXED BUGS ARE DANGEROUS: THEY 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. Consider, it cannot
trap and fix efficiently severe bugs.
What is the point of repeatidly quoting the above? Actually, I will take
the liberty of answering it for you by saying "none". There really is no
point in posting endless messages all of which start with the same text.
Why say in 100 words what you can usefully say in 10?
It's also unnecessary to copy to a large number of irrelavant
newsgroups. Is sci.math.symbolic not sufficient for you?
A somewhat shorter title than "Re: -- Wolfram Research QA process
defect: Bug in Mathematica 6 - Integrate - 93 (Sqrt, Sin, Cos, No more
memory available. Mathematica kernel has shut down., NEW regression
bug)" would also be benificial.
As a matter of interest, why the switch from Maple bashing to
Mathematica bashing?
I don't see it as bashing, really, but I do agree that reporting
Mathematica bugs to, say, a Maple newsgroup is unnecessary (and is
likely to cause people to block Vladimir's posts in their newsgroup
reader).
BTW, I haven't had time to look at what the issue with the integral
was, but it's fixed in the development version:
In[1]:= Integrate[Sin[z]/Sqrt[Sin[z]^4 + Cos[z]^4], {z, 0, Pi/2}] //
InputForm
Out[1]//InputForm=
MeijerG[{{1/4, 1/2, 3/4}, {}}, {{0, 0, 1/2}, {}}, 1]/(4*Sqrt[2]*Pi^2)}
In[2]:= N[%, 20]
-20
Out[2]= 1.19350047131850136248 + 0. 10 I
Bhuvanesh,
Wolfram Research
.
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