Syntax for matlabFunction to produce vector variables and scalar variables

When doing this:

syms x y z t
r = (x^2 + y^2 + z^2)*exp(-t);
matlabFunction(r, 'file', 'my_function',...
'vars', {t, [x y z]});

The resulting function operates on vectors:

function r = my_function(t,in2)
%MY_FUNCTION
%    R = MY_FUNCTION(T,IN2)

x = in2(:,1);
y = in2(:,2);
z = in2(:,3);
r = exp(-t).*(x.^2+y.^2+z.^2);

How should I write matlabFunction if want the following;

function r = my_function(t,in2)
%MY_FUNCTION
%    R = MY_FUNCTION(T,IN2)

x = in2(1);
y = in2(2);
z = in2(3);

Answer 1

[Azzi Abdelmalek]

function [x,y,z] = my_function(t,in2)

[Giorgos Papakonstantinou]

Maybe I wasn't clear enough. I mean how should write the command matlabFunction in order to get a function such

function r = my_function(t,in2)
%MY_FUNCTION
%    R = MY_FUNCTION(T,IN2)
x = in2(1);
y = in2(2);
z = in2(3);

[Azzi Abdelmalek]

You said, in my initial post matlabFunction returns in2 , in2 is an input to your function not an ouput

[Giorgos Papakonstantinou]

In the documentation you can find this http://www.mathworks.com/help/symbolic/matlabfunction.html. I meant that the command matlabFunction in the specific example creates a function with one output and two inputs. The two inputs of the generated function are in2 and t. The variable in2 in the generated function is a matrix. However, I want to create a function with the command matlabFunction that will generate a function with two inputs, of which one will be a vector and not a matrix. So I would like someone's help with the syntax of the command matlabFunction in order to achieve what I want. Is it more clear now?

Answer 2

[Giorgos Papakonstantinou]

In the example that I showed in my initial post matlabFunction returns in2 as a matrix whereas I need a in2 to be a vector.