I execue flow command,but it doesnot generate;

how i fix it?

> with(CodeGeneration);



> m:=diff(theta1(t),t);

                     
> Matlab(m);

Warning, the function names {diff, theta1} are not recognized in the target language

cg0 = diff(theta1(t), t);

Hi!

how I import maple code in matalb for matlab simulink?