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From: Kanwarpal Bakshi on 13 Aug 2008 23:06
How do you define the varible x and y varible in matlab r2007b?

I tried to do sym x y and syms x y, but it keeps on saying
"??? Undefined function or method 'sym' for input arguments
of type 'char'."
From: Donn Shull on 14 Aug 2008 01:54
"Kanwarpal Bakshi" <kpsbakshi(a)yahoo.com> wrote in message
<g807ep$atc$1(a)fred.mathworks.com>...
> How do you define the varible x and y varible in matlab
r2007b?
>
> I tried to do sym x y and syms x y, but it keeps on saying
> "??? Undefined function or method 'sym' for input
arguments
> of type 'char'."

My first step would be to try which sym or which syms to
make sure you are using the symbolic toolbox

Donn

From: Walter Roberson on 14 Aug 2008 04:17
Kanwarpal Bakshi wrote:
> How do you define the varible x and y varible in matlab r2007b?

> I tried to do sym x y and syms x y, but it keeps on saying
> "??? Undefined function or method 'sym' for input arguments
> of type 'char'."

The symbolic toolbox is an optional extra-cost addition to Matlab
that has to be licensed and installed. You can check with 'ver'
to see whether Matlab believes that you have a licensed version
of the symbolic toolbox installed.
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