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Thread Subject:
creating symbolic variables

Subject: creating symbolic variables

From: Ashwini Deshpande

Date: 13 Sep, 2007 12:15:25

Message: 1 of 16

Dear all,

I am using Matlab 7.4 (R2007a) Version.

i am trying to solve some symbolic equations and for that i
tried to use 'syms' (which i was using in earlier versions
of matlab), but in this version it is giving error as follows:

??? Undefined function or method 'syms' for input arguments
of type 'char'.

Kindly help me in solving this problem..

Always Thanks,

Ashwini

Subject: creating symbolic variables

From: Yang Zhang

Date: 13 Sep, 2007 14:24:07

Message: 2 of 16

"Ashwini Deshpande" <vd.ashwini@mathworks.com> wrote in
message <fcb9ks$5pl$1@fred.mathworks.com>...
> Dear all,
>
> I am using Matlab 7.4 (R2007a) Version.
>
> i am trying to solve some symbolic equations and for that i
> tried to use 'syms' (which i was using in earlier versions
> of matlab), but in this version it is giving error as
follows:
>
> ??? Undefined function or method 'syms' for input arguments
> of type 'char'.
>
> Kindly help me in solving this problem..
>
> Always Thanks,
>
> Ashwini
>


Hi Ashwini,

I don't use that version but you can try help syms; looks
like MATLAB is looking for 'char' type input so maybe:
syms 'a' will work...

Did you try sym?

Yang

Subject: creating symbolic variables

From: Steven Lord

Date: 16 Sep, 2007 05:19:14

Message: 3 of 16


"Ashwini Deshpande" <vd.ashwini@mathworks.com> wrote in message
news:fcb9ks$5pl$1@fred.mathworks.com...
> Dear all,
>
> I am using Matlab 7.4 (R2007a) Version.
>
> i am trying to solve some symbolic equations and for that i
> tried to use 'syms' (which i was using in earlier versions
> of matlab), but in this version it is giving error as follows:
>
> ??? Undefined function or method 'syms' for input arguments
> of type 'char'.
>
> Kindly help me in solving this problem..

SYMS is a function in Symbolic Math Toolbox. You likely had this toolbox
installed in the installation you used previously, but do not have it
installed in this installation. You can check the output of the VER
function to check if you have this toolbox installed. If you do not, you
will not be able to use SYMS or any of the other functionality of Symbolic
Math Toolbox until or unless you get it installed.

--
Steve Lord
slord@mathworks.com

Subject: creating symbolic variables

From: Arup

Date: 28 Sep, 2007 04:25:35

Message: 4 of 16

Steve:

I did check the version and my installation do not have
Symbolic Math Toolbox. My question is how can I get that
installed?

Regards
Arup

"Steven Lord" <slord@mathworks.com> wrote in message
<fcieci$lti$1@fred.mathworks.com>...
>
> "Ashwini Deshpande" <vd.ashwini@mathworks.com> wrote in
message
> news:fcb9ks$5pl$1@fred.mathworks.com...
> > Dear all,
> >
> > I am using Matlab 7.4 (R2007a) Version.
> >
> > i am trying to solve some symbolic equations and for
that i
> > tried to use 'syms' (which i was using in earlier
versions
> > of matlab), but in this version it is giving error as
follows:
> >
> > ??? Undefined function or method 'syms' for input
arguments
> > of type 'char'.
> >
> > Kindly help me in solving this problem..
>
> SYMS is a function in Symbolic Math Toolbox. You likely
had this toolbox
> installed in the installation you used previously, but do
not have it
> installed in this installation. You can check the output
of the VER
> function to check if you have this toolbox installed. If
you do not, you
> will not be able to use SYMS or any of the other
functionality of Symbolic
> Math Toolbox until or unless you get it installed.
>
> --
> Steve Lord
> slord@mathworks.com
>
>

Subject: creating symbolic variables

From: Steven Lord

Date: 28 Sep, 2007 13:33:10

Message: 5 of 16


"Arup " <arupsarkar@yahoo.com> wrote in message
news:fdhvnv$go9$1@fred.mathworks.com...
> Steve:
>
> I did check the version and my installation do not have
> Symbolic Math Toolbox. My question is how can I get that
> installed?
>
> Regards
> Arup

You'll need to ask the person or persons that maintain your license to
install it (if you are already licensed for it but don't have it installed)
or to purchase it and update your license to include it (if you aren't
already licensed for it.)

If you're the person that maintain your license, contact your sales
representative or go to the online store (there's a link right next to the
search box on the main homepage, http://www.mathworks.com)

--
Steve Lord
slord@mathworks.com

Subject: creating symbolic variables

From: hg Georges

Date: 21 Mar, 2008 21:18:02

Message: 6 of 16

I got the same problem with "imread"
and "uigetfile".Strangely, everything was OK until I added
a new folder containing a .m file.




"Steven Lord" <slord@mathworks.com> wrote in message
<fcieci$lti$1@fred.mathworks.com>...
>
> "Ashwini Deshpande" <vd.ashwini@mathworks.com> wrote in
message
> news:fcb9ks$5pl$1@fred.mathworks.com...
> > Dear all,
> >
> > I am using Matlab 7.4 (R2007a) Version.
> >
> > i am trying to solve some symbolic equations and for
that i
> > tried to use 'syms' (which i was using in earlier
versions
> > of matlab), but in this version it is giving error as
follows:
> >
> > ??? Undefined function or method 'syms' for input
arguments
> > of type 'char'.
> >
> > Kindly help me in solving this problem..
>
> SYMS is a function in Symbolic Math Toolbox. You likely
had this toolbox
> installed in the installation you used previously, but do
not have it
> installed in this installation. You can check the output
of the VER
> function to check if you have this toolbox installed. If
you do not, you
> will not be able to use SYMS or any of the other
functionality of Symbolic
> Math Toolbox until or unless you get it installed.
>
> --
> Steve Lord
> slord@mathworks.com
>
>

Subject: creating symbolic variables

From: Kyna Leong

Date: 11 Apr, 2010 13:09:03

Message: 7 of 16

Hi, I have the student version of Matlab which does have Symbolic Math Toolbox and I still can't get the syms thing to work. I've tried copy/pasting from the website the code and I still get an error when I put this into matlab. what am I doing wrong?





"Steven Lord" <slord@mathworks.com> wrote in message <fdivqm$gjq$1@fred.mathworks.com>...
>
> "Arup " <arupsarkar@yahoo.com> wrote in message
> news:fdhvnv$go9$1@fred.mathworks.com...
> > Steve:
> >
> > I did check the version and my installation do not have
> > Symbolic Math Toolbox. My question is how can I get that
> > installed?
> >
> > Regards
> > Arup
>
> You'll need to ask the person or persons that maintain your license to
> install it (if you are already licensed for it but don't have it installed)
> or to purchase it and update your license to include it (if you aren't
> already licensed for it.)
>
> If you're the person that maintain your license, contact your sales
> representative or go to the online store (there's a link right next to the
> search box on the main homepage, http://www.mathworks.com)
>
> --
> Steve Lord
> slord@mathworks.com
>
>

Subject: creating symbolic variables

From: Steven Lord

Date: 13 Apr, 2010 03:29:04

Message: 8 of 16


"Kyna Leong" <kyna.leong@gmail.com> wrote in message
news:hpshlf$ju0$1@fred.mathworks.com...
> Hi, I have the student version of Matlab which does have Symbolic Math
> Toolbox and I still can't get the syms thing to work. I've tried
> copy/pasting from the website the code and I still get an error when I put
> this into matlab. what am I doing wrong?

Post the SPECIFIC text of what you're trying to execute and the EXACT, FULL
text of the error message you receive when you execute that code.

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ

Subject: creating symbolic variables

From: Doug

Date: 13 Sep, 2010 22:59:05

Message: 9 of 16

code: syms x
error: Undefined function or method 'syms' for input arguments
of type 'char'

I'm also using student version.
Putting quotes around x does not help.


"Steven Lord" <slord@mathworks.com> wrote in message <hq0od0$rav$1@fred.mathworks.com>...
>
> "Kyna Leong" <kyna.leong@gmail.com> wrote in message
> news:hpshlf$ju0$1@fred.mathworks.com...
> > Hi, I have the student version of Matlab which does have Symbolic Math
> > Toolbox and I still can't get the syms thing to work. I've tried
> > copy/pasting from the website the code and I still get an error when I put
> > this into matlab. what am I doing wrong?
>
> Post the SPECIFIC text of what you're trying to execute and the EXACT, FULL
> text of the error message you receive when you execute that code.
>
> --
> Steve Lord
> slord@mathworks.com
> comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
>

Subject: creating symbolic variables

From: Walter Roberson

Date: 13 Sep, 2010 23:04:29

Message: 10 of 16

On 10-09-13 05:59 PM, Doug wrote:
> code: syms x
> error: Undefined function or method 'syms' for input arguments
> of type 'char'
>
> I'm also using student version.
> Putting quotes around x does not help.

Please use the command

ver

to check that the symbolic toolbox is installed and that you have a license
for it.


Please use the command

which syms

to see where matlab thinks the syms command is (but don't be surprised if it
does not think it exists)


Which Matlab version are you using? The symbolic toolbox did not exist in some
of the older matlab versions, and I believe that with the newer versions and
the student edition, you have to specifically select it for installation.

Subject: creating symbolic variables

From: Doug

Date: 14 Sep, 2010 00:35:22

Message: 11 of 16

It says version 7.11.0.584.
'which syms' it says no such function.

I tried reinstalling but there is no option to choose extra packs or sub items.


Walter Roberson <roberson@hushmail.com> wrote in message <i6mapn$j29$1@canopus.cc.umanitoba.ca>...
> On 10-09-13 05:59 PM, Doug wrote:
> > code: syms x
> > error: Undefined function or method 'syms' for input arguments
> > of type 'char'
> >
> > I'm also using student version.
> > Putting quotes around x does not help.
>
> Please use the command
>
> ver
>
> to check that the symbolic toolbox is installed and that you have a license
> for it.
>
>
> Please use the command
>
> which syms
>
> to see where matlab thinks the syms command is (but don't be surprised if it
> does not think it exists)
>
>
> Which Matlab version are you using? The symbolic toolbox did not exist in some
> of the older matlab versions, and I believe that with the newer versions and
> the student edition, you have to specifically select it for installation.

Subject: creating symbolic variables

From: Steven_Lord

Date: 14 Sep, 2010 14:08:57

Message: 12 of 16



"Doug " <ds.2005@btinternet.com> wrote in message
news:i6mg0a$t0k$1@fred.mathworks.com...
> It says version 7.11.0.584.
> 'which syms' it says no such function.
>
> I tried reinstalling but there is no option to choose extra packs or sub
> items.

Version 7.11 is MATLAB release R2010b. The most recent release for which
there is a Student Version is release R2010a.

http://www.mathworks.com/academia/student_version/index.html

This indicates to me that you're actually using the professional version,
and that your license probably does not include Symbolic Math Toolbox. You
should contact the administrator of your license and ask them to purchase
and add this toolbox to your license.

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

Subject: creating symbolic variables

From: Doug

Date: 14 Sep, 2010 15:31:08

Message: 13 of 16

This is the version I got by following the instructions from my college, using my college email address to sign up with mathworks.com, and following exactly the procedure given by my college.


"Steven_Lord" <slord@mathworks.com> wrote in message <i6nvlq$6il$1@fred.mathworks.com>...
>
>
> "Doug " <ds.2005@btinternet.com> wrote in message
> news:i6mg0a$t0k$1@fred.mathworks.com...
> > It says version 7.11.0.584.
> > 'which syms' it says no such function.
> >
> > I tried reinstalling but there is no option to choose extra packs or sub
> > items.
>
> Version 7.11 is MATLAB release R2010b. The most recent release for which
> there is a Student Version is release R2010a.
>
> http://www.mathworks.com/academia/student_version/index.html
>
> This indicates to me that you're actually using the professional version,
> and that your license probably does not include Symbolic Math Toolbox. You
> should contact the administrator of your license and ask them to purchase
> and add this toolbox to your license.
>
> --
> Steve Lord
> slord@mathworks.com
> comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
> To contact Technical Support use the Contact Us link on
> http://www.mathworks.com

Subject: creating symbolic variables

From: Doug

Date: 14 Sep, 2010 15:49:08

Message: 14 of 16

I have gone back into my student account at mathworks, and I do not even have the OPTION to download R2010a.

On the 'Downloads' page, I select R2010a, but I still get R2010b. The downloads page doesn't even make sense, because in 'step 1' I can choose R2010a, but 'step 3' is 'Choose download method for R2010b'


"Steven_Lord" <slord@mathworks.com> wrote in message <i6nvlq$6il$1@fred.mathworks.com>...
>
>
> "Doug " <ds.2005@btinternet.com> wrote in message
> news:i6mg0a$t0k$1@fred.mathworks.com...
> > It says version 7.11.0.584.
> > 'which syms' it says no such function.
> >
> > I tried reinstalling but there is no option to choose extra packs or sub
> > items.
>
> Version 7.11 is MATLAB release R2010b. The most recent release for which
> there is a Student Version is release R2010a.
>
> http://www.mathworks.com/academia/student_version/index.html
>
> This indicates to me that you're actually using the professional version,
> and that your license probably does not include Symbolic Math Toolbox. You
> should contact the administrator of your license and ask them to purchase
> and add this toolbox to your license.
>
> --
> Steve Lord
> slord@mathworks.com
> comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
> To contact Technical Support use the Contact Us link on
> http://www.mathworks.com

Subject: creating symbolic variables

From: Steven_Lord

Date: 14 Sep, 2010 17:30:05

Message: 15 of 16



"Doug " <ds.2005@btinternet.com> wrote in message
news:i6o5hk$alt$1@fred.mathworks.com...
> I have gone back into my student account at mathworks, and I do not even
> have the OPTION to download R2010a.
>
> On the 'Downloads' page, I select R2010a, but I still get R2010b. The
> downloads page doesn't even make sense, because in 'step 1' I can choose
> R2010a, but 'step 3' is 'Choose download method for R2010b'

You should probably contact the staff at your college who sent you the
download instructions and work with them and Technical Support to determine
the cause of this problem -- I don't think this is a problem that can be
solved on the newsgroup.

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

Subject: creating symbolic variables

From: Julie

Date: 19 Sep, 2010 23:13:04

Message: 16 of 16

"Steven_Lord" <slord@mathworks.com> wrote in message <i6obet$fhb$1@fred.mathworks.com>...
>
>
> "Doug " <ds.2005@btinternet.com> wrote in message
> news:i6o5hk$alt$1@fred.mathworks.com...
> > I have gone back into my student account at mathworks, and I do not even
> > have the OPTION to download R2010a.
> >
> > On the 'Downloads' page, I select R2010a, but I still get R2010b. The
> > downloads page doesn't even make sense, because in 'step 1' I can choose
> > R2010a, but 'step 3' is 'Choose download method for R2010b'
>
> You should probably contact the staff at your college who sent you the
> download instructions and work with them and Technical Support to determine
> the cause of this problem -- I don't think this is a problem that can be
> solved on the newsgroup.
>
> --
> Steve Lord
> slord@mathworks.com
> comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
> To contact Technical Support use the Contact Us link on
> http://www.mathworks.com

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