Matlab- input arguments of type 'double' ????

[birdhen]

Hi there, I was wondering if anyone could help me.

Yesterday I wrote the command [z,r]=ode45(@rad03,[0,10],0); and it worked but today I am writing exactly the same thing but keep getting the message:

???Error using ==>feval
Undefined function or method 'rad03' for input arguments of type 'double'.

Error in ==>funfun/private/odearguments at 110


and some more error messages. Why would it work yesterday and not today? Does anyone know what I am doing wrong?

Any help would be much appreciated!
Thanks

[f95toli]

The error message means that Matlab can not find the file rad03.m (assuming the function rad03 is located in a file with the same name).

Could it be that you are not in the right directory?

[birdhen]

yes it could, thanks!