[Maxima-bugs] [ maxima-Bugs-1877522 ] erf(1.0),nouns wrong; causes plot2d(erf) to fail

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Bugs item #1877522, was opened at 2008-01-22 09:34
Message generated for change (Comment added) made by nobody
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: erf(1.0),nouns wrong; causes plot2d(erf) to fail

Initial Comment:
erf(1.0),nouns == erf(1.0),erf => erf(1.0)  !!
should be 0.84...

For this reason, plot2d( erf, [x,0,1]), plot2d( erf(x), [x,0,1]), plot2d( '(erf(x)), [x,0,1]) do nothing.

The problem seems to be that nounsflag requires nouns to have functional properties.


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Comment By: Nobody/Anonymous (nobody)
Date: 2008-01-29 22:56

Message:
Logged In: NO 

(%i1) plot2d([x^2, x^3, x^4 -x +1] ,[x,-10,10]);
Maxima encountered a Lisp error:

 Error in PROGN [or a callee]: Broken pipe

Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.


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Comment By: Nobody/Anonymous (nobody)
Date: 2008-01-29 22:55

Message:
Logged In: NO 

(%i1) plot2d([x^2, x^3, x^4 -x +1] ,[x,-10,10]);
Maxima encountered a Lisp error:

 Error in PROGN [or a callee]: Broken pipe

Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.

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Comment By: Nobody/Anonymous (nobody)
Date: 2008-01-29 22:52

Message:
Logged In: NO 

(%i1) plot2d([x^2, x^3, x^4 -x +1] ,[x,-10,10]);
Maxima encountered a Lisp error:

 Error in PROGN [or a callee]: Broken pipe

Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.

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Comment By: Raymond Toy (rtoy)
Date: 2008-01-22 11:52

Message:
Logged In: YES 
user_id=28849
Originator: NO

What version?  Current cvs doesn't seem to have this problem, and erf
($erf and %erf) seems already to be on the ''MAKE list in mlisp.lisp.

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Comment By: Raymond Toy (rtoy)
Date: 2008-01-22 11:52

Message:
Logged In: YES 
user_id=28849
Originator: NO

What version?  Current cvs doesn't seem to have this problem, and erf
($erf and %erf) seems already to be on the ''MAKE list in mlisp.lisp.

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Comment By: Stavros Macrakis (macrakis)
Date: 2008-01-22 10:03

Message:
Logged In: YES 
user_id=588346
Originator: NO

The fix is to add erf to the ''MAKE list in mlisp.lisp.

(I forgot to log in when submitting the bug.)

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1877522&group_id=4933