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Topic: Maple bugs: Thomas Richard: Hurrah, Maple quality improves! - Example 8
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Vladimir Bondarenko

Posts: 4,829
Registered: 12/4/04
Maple bugs: Thomas Richard: Hurrah, Maple quality improves! - Example 8
Posted: Apr 22, 2005 2:32 PM
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Hi Maple customers all over the world,

Get the answer in Maple 9.5.2 spending 60+ more time... enjoy
its 1300+ times increased length, now 183 full screens, at the
1024x768 resolution, in standard math I/O mode, as compared
with Maple 9.03.

As we already know well from Herr Richard, Maple Support,
Scientific Computers GmbH:

Maple's quality improves... well... at least it does not
deteriorate...

http://groups-beta.google.com/group/comp.soft-sys.math.maple/msg/83505ab90dd16760

The same aria is sung by Laurent Bernardin, Chief Scientist & VP,
Research who claims:

http://bernardin.com/maple/index.php

LB> Being strict about backwards compatibility can be frustrating
LB> for our developers. A common comment I hear, is: "It would
LB> really be easier to make this command work better, if I would
LB> not have to worry about compatibility". This is a good sign.
LB> It means the issue is taken seriously at all levels. It also
LB> means that we are finding ways to move Maple forward and
LB> improve the system without breaking existing user code.

And all this stuff is coordinated fragments of the 'Our Quality
Is Superior' soap opera by Maplesoft...

http://www.maplesoft.com/

Maplesoft> "Maplesoft technologies are ideal for students enrolled
Maplesoft> in any math, science or engineering course. Learn how
Maplesoft> you can use Maple to save time, learn more and became a
Maplesoft> dropout, oh jeeeeezzz! we meant improve your grades."

Here is yet another way Maple quality improves... The silly users
shamelessly name this a regression bug - we need here in Maplesoft
a special educational project to grow the Maple super-hero breed,
enjoy A day of a CAS super-hero at

http://groups-beta.google.com/group/comp.soft-sys.math.maple/msg/28d285e841e66aa3?hl=en


Just an idea... press and hold the PageDown key to enjoy the
scrolling over the output during about 1 minute (!)


length(int(sin(z)/(1+2*z^3+z^4), z=0..infinity));

-------------------- (2004) Maple 9.5.2 ----------------------
474893 183 full screens, at 1024x768 resolution
31.665 seconds
-------------------- (2004) Maple 9.5 ------------------------
474893 183 full screens, at 1024x768 resolution
28.351 seconds
-------------------- (2003) Maple 9 --------------------------
365 1 line
.551 second
-------------------- (2002) Maple 8 --------------------------
365 1 line
.381 second
-------------------- (2001) Maple 7 --------------------------
365 1 line
.411 second
-------------------- (2000) Maple 6 --------------------------
365 1 line
.220 second
-------------------- (1997) Maple V Rel 5 --------------------
61 unevaluated
.190 second
-------------------- (1995) Maple V Rel 4 --------------------
61 unevaluated
.440 second
-------------------- (1994) Maple V Rel 3 --------------------
61 unevaluated
1.00 second
---------------------------------------------------------------


Compare:

Maple 9.03> int(sin(z)/(1+2*z^3+z^4), z=0..infinity);

1/4*Pi*Sum(cos(z)/z^2/(3+2*z),z=RootOf(1+2*_Z^3+_Z^4))+1/2*Sum((\
-Ci(-z)*sin(z)+cos(z)*Si(z))/z^2/(3+2*z),z=RootOf(1+2*_Z^3+_Z^4))

.3622193368+0.*I


Best wishes,

Vladimir Bondarenko

VM and GEMM architect
Co-founder, CEO, Mathematical Director
Cyber Tester, LLC
13 Dekabristov Str, Simferopol
Crimea 95000, Ukraine
tel: +38-(0652)-447325
tel: +38-(0652)-230243
tel: +38-(0652)-523144
fax: +38-(0652)-510700

http://www.cybertester.com/
http://maple.bug-list.org/
http://www.CAS-testing.org/





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