Error due to matrix dimensions not being consistent

Hello everyone,

Below is a code i am trying to write. When I run it, I get errors due to matrix dimensions. May I know how to solve such errors please,thanks.

      function h = mtimes(u,v)
          % Multiplication with matrix or scalar: `h = u*v`
          if ~isa(u,'ADI') %u is a scalar/matrix
              h = v;
              h.val = u.*(h.val);
              h.jac = ADI.mtimesJac(u, h.jac);
          elseif ~isa(v,'ADI') %v is a scalar
              h = mtimes(v,u);
          else % special case where either u or v has single value
              if numel(u.val) == 1
                  h = u;
                  h.val = times(u.val, v.val);
                  h.jac = ADI.timesJacUnit(u.val, v.val, u.jac, v.jac);
              elseif numel(v.val) == 1
                  h = u;
                  h.val = times(u.val, v.val);
                  h.jac = ADI.timesJacUnit(v.val, u.val, v.jac, u.jac);
              else
                  error('Operation not supported');
              end
          end
      end

the errors are;

Error using  .* 
Matrix dimensions must agree.

Error in  *  (line 161)
              h.val = u.*(h.val);

[Rik]

Can you share the definition of the ADI class and the code you're using to produce this error?

[micheal marembo]

Hello, attached is the code for the ADI class and the persistent errors are also attached at the end of the code, Thank you.

Edit Rik: moved class definition to attachment

The following are the errors;

Error in  *  (line 162)
              h.val = u*(h.val);

Error in  .*  (line 191)
                 h = mtimes(u,v);

Thank you

[Rik]

To keep the thread readable I moved the classdef to an attachment and edited your comment for you. Next time, please use the tools explained on this page to make your posts more readable.

Can you provide the code you are using to reproduce this error? (also, posting code in this forum sometimes removes blank lines, so the line numbers in your errors don't line up with the code anymore.

Answer 1

[Rik]

You have shadowed the internal function mtimes which is used when you use the * operator. Renaming your function should solve the issue.

[micheal marembo]

Thank you

[Rik]

If you have any remaining errors, feel free to comment, if not please feel free to mark this as accepted answer.

[micheal marembo]

I changed the function name but the same errors are still persisting.