bugGNU Octave - Bugs: bug #46051, Crash when function ezplot(sin(x))

 
 

bug #46051: Crash when function ezplot(sin(x))

Submitter:  Sergio <priceler>
Submitted:  Fri 25 Sep 2015 08:55:53 AM UTC
   
 
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Segfault, Bus Error, etc.
Status:  None Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * 4.0.0 Operating System:  * Microsoft Windows
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Sat 02 Jan 2016 06:11:38 AM UTC, comment #4: 

Sorry for the delay.  I think plotting might just be prone to crashing on your system: which is certainly a problem but from the conversation it doesn't seem like Symbolic that is crashing.

1.  ezplot("sin(x)") is nothing to do with Symbolic pkg.  That is Octave's core ezplot.

2.  This is Symbolic's ezplot:


syms x
ezplot(sin(x))


3.  But the previous command is the same code path as:


syms x
fx = sin(x)
ezplot(fx)


If I understood correctly,  1 and 2 crash and 3 works.

Colin Macdonald <cbm>
Sat 26 Sep 2015 09:48:16 AM UTC, comment #3: 

Thanks for the help.

Sergio <priceler>
Sat 26 Sep 2015 09:46:47 AM UTC, comment #2: 

Using ezplot("sin(x)"), I get the same error, program crashed.

Then I try this: 
syms x
fx = sin(x)
typeinfo (fx)
ezplot (fx)

Now it works perfectly.

Sergio <priceler>
Fri 25 Sep 2015 06:00:09 PM UTC, comment #1: 

Just to make sure it is quite clearly the interaction with the symbolic package, can you try the following code?


ezplot ("sin(x)")


Also, what does the following return


syms x
fx = sin(x)
typeinfo (fx)
ezplot (fx)


Rik <rik5>
Group administrator
Fri 25 Sep 2015 08:55:53 AM UTC, original submission:  

im using symbolic 2.2.2

When I load:

syms x
ezplot(sin(x))

And then press ENTER, it appears the Figure1 window without the representation of sin(x). All in white. Finally, Octave crash and I have to restart the program again.

Sergio <priceler>

 

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    Date Changed by Updated Field Previous Value => Replaced by
    2015-09-26 rik5 Open/ClosedOpen Closed
    2015-09-25 priceler Carbon-Copy- Added priceler

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