MATLAB Central Newsreader - undefined function or variable 'sym'

undefined function or variable 'sym'

Montadar Taher — Thu, 09 Apr 2009 00:34:02 -0400

Hi my friends,

I did an integration between matlab and visual basic 6.0, i create the window in vb and did all the required code to run the window in a very good case.

Also, in matlab, i create my function and i used the comtool to build it. After that i added it in the references of visual basic and the vb do call for the function in a good case.

My problem, is that i received an error message in vb as ( undefined function or variable 'sym' ). in fact i never have such function or variable in my code (matlab and visual basic).

can some body help me?

Thank you in advance

Re: undefined function or variable 'sym'

Montadar Taher — Thu, 09 Apr 2009 00:40:03 -0400

by the way,

when i run the function in matlab, it working very good.

thank you

"Montadar Taher" <muntather_moto@yahoo.com> wrote in message <grjfpq$n1a$1@fred.mathworks.com>...
> Hi my friends,
>
> I did an integration between matlab and visual basic 6.0, i create the window in vb and did all the required code to run the window in a very good case.
>
> Also, in matlab, i create my function and i used the comtool to build it. After that i added it in the references of visual basic and the vb do call for the function in a good case.
>
> My problem, is that i received an error message in vb as ( undefined function or variable 'sym' ). in fact i never have such function or variable in my code (matlab and visual basic).
>
> can some body help me?
>
> Thank you in advance

Re: undefined function or variable 'sym'

Steven Lord — Thu, 09 Apr 2009 03:15:57 -0400

"Montadar Taher" <muntather_moto@yahoo.com> wrote in message
news:grjfpq$n1a$1@fred.mathworks.com...
> Hi my friends,
>
> I did an integration between matlab and visual basic 6.0, i create the
> window in vb and did all the required code to run the window in a very
> good case.
>
> Also, in matlab, i create my function and i used the comtool to build it.
> After that i added it in the references of visual basic and the vb do call
> for the function in a good case.
>
> My problem, is that i received an error message in vb as ( undefined
> function or variable 'sym' ). in fact i never have such function or
> variable in my code (matlab and visual basic).
>
> can some body help me?

Symbolic Math Toolbox (which is the toolbox of which SYM is part) is not
supported for use with MATLAB Compiler and will not work in a compiled
application.

http://www.mathworks.com/products/compiler/compiler_support.html

--
Steve Lord
slord@mathworks.com

Re: undefined function or variable 'sym'

Nasser Abbasi — Thu, 09 Apr 2009 03:21:32 -0400

"Steven Lord" <slord@mathworks.com> wrote in message
news:grjp88$1o3$1@fred.mathworks.com...
>
> "Montadar Taher" <muntather_moto@yahoo.com> wrote in message

>in fact i never have such function or
>> variable in my code (matlab and visual basic).
>>

>
> Symbolic Math Toolbox (which is the toolbox of which SYM is part) is not
> supported for use with MATLAB Compiler and will not work in a compiled
> application.
>
> http://www.mathworks.com/products/compiler/compiler_support.html
>
> --
> Steve Lord
> slord@mathworks.com
>

Hello Steve;

If someone is not using syms in their maltab m files (as the OP says), how
why would the symbolic toolbox be involved? What you said, was my first
immediate reaction to the OP question, but then saw that he said he does not
use symbolic toolbox.

--Nasser

Re: undefined function or variable 'sym'

Steven Lord — Thu, 09 Apr 2009 14:06:36 -0400

"Nasser Abbasi" <nma@12000.org> wrote in message
news:XQdDl.13787$hc1.1273@flpi150.ffdc.sbc.com...
>
> "Steven Lord" <slord@mathworks.com> wrote in message
> news:grjp88$1o3$1@fred.mathworks.com...
>>
>> "Montadar Taher" <muntather_moto@yahoo.com> wrote in message
>
>>in fact i never have such function or
>>> variable in my code (matlab and visual basic).
>>>
>
>>
>> Symbolic Math Toolbox (which is the toolbox of which SYM is part) is not
>> supported for use with MATLAB Compiler and will not work in a compiled
>> application.
>>
>> http://www.mathworks.com/products/compiler/compiler_support.html
>>
>> --
>> Steve Lord
>> slord@mathworks.com
>>
>
> Hello Steve;
>
> If someone is not using syms in their maltab m files (as the OP says), how
> why would the symbolic toolbox be involved? What you said, was my first
> immediate reaction to the OP question, but then saw that he said he does
> not use symbolic toolbox.

You're right, I skipped over that when I was reading the OP's question.
However, if they're receiving that message, then I suspect that either
they're calling SYM or SYMS but don't know it, or they're calling another
function (perhaps one written by someone else) that uses SYM or SYMS without
their knowledge.

Montadar, run your code inside MATLAB using the Profiler (see HELP PROFILE)
and look for any instances of SYM in the Profile report -- that should show
you if your code uses Symbolic Math Toolbox without you realizing it and
will show you where the dependency occurs.

--
Steve Lord
slord@mathworks.com

Re: undefined function or variable 'sym'

Montadar Taher — Fri, 10 Apr 2009 20:21:01 -0400

Yes Friend,

i did the profile command and i found out that the sym was called many times as follows;
Function Name Calls Total Time Self Time* Total Time Plot
(dark band = self time)
sym.maple 1770 6.433 s 0.448 s
maple 3540 5.218 s 0.752 s
maplemex (MEX-function) 3559 4.225 s 4.185 s
sym.cosint 885 4.152 s 0.042 s
sym.double 885 2.666 s 0.138 s
sym.sym 3540 2.621 s 0.278 s
sym.sym>symr 1770 1.315 s 0.225 s
sym.sym>char2sym 1770 1.028 s 0.328 s
rat 2653 0.867 s 0.867 s
double.superiorfloat 71604 0.696 s 0.696 s
fliplr 28320 0.295 s 0.295 s
int2str 2700 0.183 s 0.183 s
sym.char 5310 0.171 s 0.171 s
waitbar 25 0.166 s 0.160 s
sym.sym>symfl 883 0.149 s 0.028 s
sym.sym>trim 1770 0.100 s 0.046 s
log10 12092 0.092 s 0.092 s
axis 9 0.079 s 0.061 s
str2num 885 0.075 s 0.042 s
newplot 32 0.071 s 0.007 s
newplot>ObserveAxesNextPlot 32 0.056 s 0.002 s
graphics\private\clo 8 0.054 s 0.016 s
cla 8 0.054 s 0.000 s
symbolic\private\putenvmaple (MEX-function) 1 0.050 s 0.050 s
sym.double>map2mat 885 0.045 s 0.045 s
setdiff 16 0.038 s 0.023 s
close 1 0.035 s 0.005 s
str2num>protected_conversion 885 0.033 s 0.033 s
ismember 9 0.030 s 0.030 s
close>request_close 1 0.030 s 0.007 s
title 6 0.023 s 0.018 s
close>request_close_helper 2 0.021 s 0.006 s
view 3 0.016 s 0.014 s
axis>LocSetEqual 3 0.015 s 0.015 s
ylabel 10 0.013 s 0.010 s
axescheck 29 0.013 s 0.013 s
xlabel 10 0.012 s 0.009 s
num2str 10 0.011 s 0.008 s
hold 3 0.008 s 0.006 s
figureToolbarCreateFcn 8 0.006 s 0.002 s
grid 5 0.005 s 0.005 s
xlim 5 0.005 s 0.005 s
opaque.char 8 0.004 s 0.004 s
angle 1512 0.003 s 0.003 s
colormap 1 0.003 s 0.003 s
ishold 6 0.003 s 0.003 s
gcf 75 0.003 s 0.003 s
iscellstr 24 0.003 s 0.003 s
newplot>ObserveFigureNextPlot 32 0.003 s 0.003 s
axis>LocSetLimits 3 0.003 s 0.003 s
FindST 1 0.002 s 0.002 s
gca 71 0.002 s 0.002 s
gcbf 2 0.002 s 0.000 s
gcbo 2 0.002 s 0.002 s
closereq 1 0.002 s 0.000 s
view>ViewCore 3 0.002 s 0.002 s
isunix 59 0 s 0.000 s
ispc 1 0 s 0.000 s
filesep 1 0 s 0.000 s
initprintexporttemplate 9 0 s 0.000 s
close>checkfigs 2 0 s 0.000 s
usejava 8 0 s 0.000 s
graphics\private\clo>find_kids 8 0 s 0.000 s
findall 8 0 s 0.000 s
view>isAxesHandle 3 0 s 0.000 s
axis>allAxes 9 0 s 0.000 s

now please help me to solve the problem, i need to do my program with visual basic 6, please help

Re: undefined function or variable 'sym'

Steven Lord — Fri, 10 Apr 2009 20:49:15 -0400

"Montadar Taher" <muntather_moto@yahoo.com> wrote in message
news:gro9nd$kan$1@fred.mathworks.com...
> Yes Friend,
>
> i did the profile command and i found out that the sym was called many
> times as follows;

*snip profile output*

> now please help me to solve the problem, i need to do my program with
> visual basic 6, please help

As I said before, Symbolic Math Toolbox and SYM are not available for use
with MATLAB Compiler, which also means it won't work with any of the
deployment products that depend upon MATLAB Compiler. You can't deploy
M-files that use SYM objects.

--
Steve Lord
slord@mathworks.com

Re: undefined function or variable 'sym'

Montadar Taher — Fri, 10 Apr 2009 21:04:01 -0400

"Steven Lord" <slord@mathworks.com> wrote in message <grobb4$81q$1@fred.mathworks.com>...
>
> "Montadar Taher" <muntather_moto@yahoo.com> wrote in message
> news:gro9nd$kan$1@fred.mathworks.com...
> > Yes Friend,
> >
> > i did the profile command and i found out that the sym was called many
> > times as follows;
>
> *snip profile output*
>
> > now please help me to solve the problem, i need to do my program with
> > visual basic 6, please help
>
> As I said before, Symbolic Math Toolbox and SYM are not available for use
> with MATLAB Compiler, which also means it won't work with any of the
> deployment products that depend upon MATLAB Compiler. You can't deploy
> M-files that use SYM objects.
>
> --
> Steve Lord
> slord@mathworks.com
>
Thank you