Given
syms x y z ;
w = 3 * z
wn = matlabFunction(w)
Matlab actually produces a function of only z, so that wn(1,1,1) gets "too many arguments".
How can I get it to produce a function that depends on all of x, y and z?
Note - I need to do this so that I can feed this function into another process that takes functions of x, y, z that might or might not strictly depend on each. I also want the code to mimic the algebra. I am not looking for someone to say - well, show me the whole code and I will rearrange it. I am quite able to rewrite the code by manually making sure that the right arguments are provided. Or having a configuration structure. Or using strings to force the issue. And so on. What I am looking for is a method to get Matlab to simply give me a function with the right argument list instead of being too smart for its own good.
In matlabFunction you can use the optional 'Vars' input to specify which input variables the produced anonymous function should have:
wn = matlabFunction(w, 'Vars', {x y z});