vladimir bondarenko

Walter Roberson writes:

http://groups.google.com/group/comp.soft-sys.math.maple/browse_frm/thread/5b2eb57d695fd315/#

WR> [...] if you make the expression sufficiently complex [...]

You think too good about Maple.

No necessity to feed it "the expression sufficiently complex"
to reproduce the bugs you reported.

Who have enough courage to show us very simple inputs which
manifest the same defects?

Maybe William C. Bauldry, Professor of Mathematics ?

http://www.mathsci.appstate.edu/~wmcb/


(If nobody do it, I will.)


Sincerely,

Vladimir Bondarenko

VM and GEMM architect
Co-founder, CEO, Mathematical Director

http://www.cybertester.com/ Cyber Tester, LLC
http://maple.bug-list.org/ Maple Bugs Encyclopaedia
http://www.CAS-testing.org/ CAS Testing

vladimir bondarenko

Vladimir Bondarenko writes:

http://groups.google.com/group/comp.soft-sys.math.maple/msg/ca95f1b641ab5c9a

VB> Who have enough courage to show us very simple
VB> inputs which manifest the same defects?

Walter Roberson writes (many interesting points... if not lazy,
click the link!):

http://groups.google.com/group/comp.soft-sys.math.maple/msg/3edbaf1a46a92c12

yum-yum!...



.... now where your (and mine!) fav infinity*signum(GAMMA(...))
Maple bunk?

axel vogt

Es hat ein arg tiefes Niveau, sich mit den Ergebnissen
anderer zu schmücken ... so etwa wie Boulevard-Presse?

nasser abbasi

Es hat ein arg tiefes Niveau, sich mit den Ergebnissen
anderer zu schmücken ... so etwa wie Boulevard-Presse?

I am assuming the above is German? so I used one of those free web based
translation services, and this is what I got (for the benifits of those of
us who do not know German)

"Does it have a badly deep level to decorate itself with the results of
other... so about like Boulevard-press?"

Another web site said

"It has a badly deep level, itself with the results to decorate more
different ... as possibly as gutter press?"

and a third web site said

"It has a badly deep level, with the results of others to decorate itself.
as for instance as boulevard press?"

And after reading the English translation, I stil do not know any more than
before what Axel is saying to Vladimir

Nasser

vladimir bondarenko

Nasser Abbasi writes:

http://groups.google.com/group/sci.math.symbolic/msg/68429dd23b41dcef

NA> And after reading the English translation, I still do not
NA> know any more than before what Axel is saying to Vladimir



If I understood correctly, the meaning is that I was trying to
add myself more value via setting my name close to the results
produced by Walter Roberson

To which Herr Vogt's remark, I'd reply that, second, save for
the defect shown below, we discovered the other defects Walter
Roberson reports, many years ago.

But it is the second; now there is the first.

The VM machine + Vladimir Bondarenko makes a unique tandem
which, by results we the co-authors discovered for Maple,
MuPAD, Maxima, AXIOM, Mathematica, and Derive, surpass ANY
other human being. (sic!)

Vladimir Bondarenko: A short bio sketch
http://groups.google.com/group/sci.math.symbolic/msg/d47024ab371f09c6

If this sounds for anyone as anything like not a gospel
truth, it's just because this person has no access to the
Cyber Tester's internal databases.

If Kasparov mentioned a name of schoolboy, who showed some
talent in chess, one can consider, was Kasparov decorating
himself, or rather was bestowing some brilliant light of
his name to a person he was speaking about?

Walter Roberson writes:

http://groups.google.com/group/comp.soft-sys.math.maple/msg/71d80e0c0c51513a

WR> [...] if you make the expression sufficiently complex [...]

Vladimir Bondarenko writes:

VB> Who have enough courage to show us very simple
VB> inputs which manifest the same defects?

# Maple: Unsafe at any evaluation. -- Peter Luschny

f := 1/((n+1-k)*(1-k)!):

s:=subs(n=1, sum(f, k=1..n)): evalc(s) assuming n > 0;
evalc(subs(n=1, sum(f, k=1..n))) assuming n > 0;
evalc(subs(n=1, sum(f, k=1..n)));
sum(subs(n=1, f), k=1..1);


-------------------- (2005) Maple 10.00 -------------------
Error, (in GAMMA) numeric exception: division by zero
1-infinity*signum(GAMMA(-1))
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
1
-------------------- (2004) Maple 9.5.1 -------------------
Error, (in GAMMA) numeric exception: division by zero
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
1
-------------------- (2004) Maple 9.5 ---------------------
Error, (in GAMMA) numeric exception: division by zero
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
1
-------------------- (2003) Maple 9 -----------------------
Error, (in GAMMA) numeric exception: division by zero
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
1
-------------------- (2002) Maple 8 -----------------------
Error, (in GAMMA) numeric exception: division by zero
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
(signum(GAMMA(-1))-infinity)/signum(GAMMA(-1))
1
-------------------- (2001) Maple 7 -----------------------
Error, (in GAMMA) numeric exception: division by zero
1-1/signum(GAMMA(-1))*infinity
1-1/signum(GAMMA(-1))*infinity
1
-------------------- (2000) Maple 6 -----------------------
N/A # assuming is not implemented yet
-------------------- (1997) Maple V Rel 5 -----------------
N/A # assuming is not implemented yet
-------------------- (1995) Maple V Rel 4 -----------------
N/A # assuming is not implemented yet
-------------------- (1994) Maple V Rel 3 -----------------
N/A # assuming is not implemented yet
------------------------------------------------------------


Sincerely,

Vladimir Bondarenko

VM and GEMM architect
Co-founder, CEO, Mathematical Director

http://www.cybertester.com/ Cyber Tester, LLC
http://maple.bug-list.org/ Maple Bugs Encyclopaedia
http://www.CAS-testing.org/ CAS Testing