Is there a way to compute the n-th symbolic derivative of a function where n is also symbolic?

Is there a way to compute the n-th symbolic derivative of a function, where n is also a symbolic variable? The following does not seem to work.

syms f(x) x
syms n positive real integer 

% Define the function for which you want to find the nth derivative
f(x) = exp(x);

T=diff(f,x,n)

T(x) = 

0

Answer 1

[Paul]

Hi Matt,

I don't think so, at least not using diff

syms f(x) x
syms n positive real integer 
% Define the function for which you want to find the nth derivative
f(x) = exp(x);

This line is telling diff to differentiate first wrt to x and then wrt to n, which is why the result is zero.

T=diff(f,x,n)

T(x) = 

0

Though I suppose one could ask what it means to differentiate wrt to an integer-valued independent variable.