[Axiom-developer] [#122 Handling of power series]

[Bill Page]

Changes 
http://page.axiom-developer.org/zope/mathaction/122HandlingOfPowerSeries/diff
--

??changed:
-a:= series sin(x);
-a=a;
-
a:= series sin(x)

??changed:
-a:=a::UnivariatePuiseuxSeries(Expression Integer,x,0);
-a=a;
a:=a::UnivariatePuiseuxSeries(Expression Float,x,0)
a*1.0

??changed:
-------------------------------------------------
--- Fatal bug:
-
--- a:= series sin(x);
--- a*1.0;
--- >> System error:
--- Caught fatal error [memory may be damaged]
-
--- protected-symbol-warn called with (NIL)
-
--- From trace:
--- It seems that the interpreter doesn't coerce one args
---  in Expression (Float):
-
-\begin{verbatim}
-
-1<enter valueArgsEqual? : (|UnivariatePuiseuxSeries| (|Expression| 
(|Integer|)) |x| 
<hr />
Fatal bug::

 a:= series sin(x);
 a*1.0;
 >> System error:
 Caught fatal error [memory may be damaged]

 protected-symbol-warn called with (NIL)

 From trace:

 It seems that the interpreter doesn't coerce one args
 in Expression (Float):

 1<enter valueArgsEqual? : (|UnivariatePuiseuxSeries| (|Expression| 
(|Integer|)) |x| 

??changed:
-And here:
-
-1<enter algEqual : ((0 . 0) 0 . 1)\((0 0 . 0) 0 1 . 0)\(|Expression| (|Float|))
-1<enter compiledLookupCheck : =\((|Boolean|) $ $)\#<vector 08eccc78>
-1>exit compiledLookupCheck : (#<compiled-function |EXPR;=;2$B;21|> . #<vector 
08eccc78>)
-
-after SPADCALL (it's not traced) "=" in EXPR trigger the bug.
-
-algEqual : ((0 . 0) 0 . 1)\((0 0 . 0) 0 1 . 0)\(|Expression| (|Float|))
And here::

 1<enter algEqual : ((0 . 0) 0 . 1)\((0 0 . 0) 0 1 . 0)\(|Expression| (|Float|))
 1<enter compiledLookupCheck : =\((|Boolean|) !$ $)\#<vector 08eccc78>
 1>exit compiledLookupCheck : (#<compiled-function |EXPR;=;2$B;21|> . #<vector 
08eccc78>)

 after SPADCALL (it's not traced) "=" in EXPR trigger the bug.

 algEqual : ((0 . 0) 0 . 1)\((0 0 . 0) 0 1 . 0)\(|Expression| (|Float|))

++added:


--removed:
-
-\end{verbatim}
-

--removed:
-

--removed:
-
-
-
-
-
-

--
forwarded from http://page.axiom-developer.org/zope/mathaction/address@hidden