How to assign design variables?

How to assign design variable in matlab coding and call it in mathematical function .

Example:- I have to make a function with variables x and x containing design variable a,b,c,d

And I have to call it in equation in the same function in a way

sigma = 5.04e5./(x(:,3).^2.*x(:,4));

then how to do it.

[Jan]

What are "design variables a,b,c,d"? Do you mean symbolic variables?

[Danishtah Quamar]

Yes x(1)=a % length

x(2)=b % width

and so on

Answer 1

[Walter Roberson]

See matlabFunction option 'vars' with the {} approach

matlabFunction(EXPRESSION, 'vars', {[a, b, c, d] })