what's wrong with the symbolic solve function?

I'm using MATLAB Version 7.10.0.499 (R2010a) on a Macbook Pro with OS X version 10.6.8 and am getting some weird behaviour:

Sometimes the following syntax works:

>> syms h v

>> S=solve('U1=h','U2=h*v',h,v)

and sometimes it gives the error message:

??? Error using ==> mupadmex

Error in MuPAD command: Index exceeds matrix dimensions.

Error in ==> sym.sym>sym.subsref at 1366
            B = mupadmex('mllib::subsref',A.s,inds{:});

Error in ==> solve>assignOutputs at 114
       S.(char(symvars(j))) = R(:,j);

Error in ==> solve at 87
varargout = assignOutputs(nargout,R,symvars);

Any ideas on what is going wrong? I've also tried 'h,v' and 'h','v' with the same results.

[Ganesh P. Prajapat]

The same problem is also with me. Could anybody help me out please? Even after running this error, if i am trying to find the eigen value of a simple 2x2 matrix, it fails .

[Walter Roberson]

Ganesh, which MATLAB version are you using? And how are you calling solve?

Answer 1

[Sean de Wolski]

syms h v
S=solve('U1=h','U2=h*v',h,v)

Works fine for me on 10a. What other variables are in your workspace? What does which solve return?