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#354 Complex R is not necessarily a field when R is a field  ← ↑ →  #356 domain for general constants

#355 Wrong sign in derivation of besselK
  
last edited 16 years ago by kratt6

Edit detail for #355 Wrong sign in derivation of besselK revision 1 of 2
1 2
Editor:
Time: 2007/11/17 22:32:14 GMT-8
Note: closed in --patch-51, fixed in silver for --patch-50 
changed:
-
D(besselK(a,x),x) misses a minus sign

\begin{axiom}
D(besselK(a,x),x)
\end{axiom}


From kratt6 Sat Jun 2 07:40:05 -0500 2007
From: kratt6
Date: Sat, 02 Jun 2007 07:40:05 -0500
Subject: Several bugs...
Message-ID: <20070602074005-0500@wiki.axiom-developer.org>

The patch attached here corrects the bug reported and additionally several documentation bugs.  In particular, note that axiom (currently) regards these special functions as functions in the second variable only, when it comes to differentiation.
<a href="special.patch">special.patch</a>
<a href="combfunc-special.patch">combfunc-special.patch</a>



From kratt6 Sat Jun 2 08:19:17 -0500 2007
From: kratt6
Date: Sat, 02 Jun 2007 08:19:17 -0500
Subject: fix on email list, couldn't upload
Message-ID: <20070602081917-0500@wiki.axiom-developer.org>

Status: open => fix proposed 


From daly Sat Jun 2 20:21:24 -0500 2007
From: daly
Date: Sat, 02 Jun 2007 20:21:24 -0500
Subject: closed in --patch-51, fixed in silver for --patch-50
Message-ID: <20070602202124-0500@wiki.axiom-developer.org>

The new result for 

D(besselK(a,x),x) 

\begin{verbatim}
  - besselK(a + 1,x) - besselK(a - 1,x)
  -------------------------------------
                    2
\end{verbatim}

due to changes in special.spad and combfunc.spad
submitted by Martin Rubey.

Submitted by : (unknown) at: 2007-11-17T22:32:14-08:00 (16 years ago)
Name :
Axiom Version :
Category : Severity : Status :
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Optional comment :

D(besselK(a,x),x) misses a minus sign

axiom
D(besselK(a,x),x)
LatexWiki Image(1)
Type: Expression Integer

Several bugs... --kratt6, Sat, 02 Jun 2007 07:40:05 -0500 reply
The patch attached here corrects the bug reported and additionally several documentation bugs. In particular, note that axiom (currently) regards these special functions as functions in the second variable only, when it comes to differentiation. special.patch combfunc-special.patch

fix on email list, couldn't upload --kratt6, Sat, 02 Jun 2007 08:19:17 -0500 reply
Status: open => fix proposed

closed in --patch-51, fixed in silver for --patch-50 --daly, Sat, 02 Jun 2007 20:21:24 -0500 reply
The new result for

D(besselK(a,x),x)

LatexWiki Image

due to changes in special.spad and combfunc.spad submitted by Martin Rubey.