how to construct this in matlab? can anyone explain step by step?

I am trying to construct this in matlab.

Answer 1

[John D'Errico]

One line of code. The explanation is right there. If you want more depth, the read the doc for jacobian. The good thing is, MATLAB actually has documentation already written for its tools, as well as providing step by step examples. Its already written.

help jacobian

--- help for sym/jacobian ---

 JACOBIAN Jacobian matrix.
    JACOBIAN(f,x) computes the Jacobian of the scalar or vector f
    with respect to the vector x. The (i,j)-th entry of the result
    is df(i)/dx(j). Note that when f is scalar, the Jacobian of f
    is the gradient of f. Also, note that scalar x is allowed,
    although this is just DIFF(f,x).
 
    Example:
        syms x y z u v; jacobian([x*y*z; y; x+z],[x y z])
        returns  [y*z, x*z, x*y; 0, 1, 0; 1, 0, 1]
 
        jacobian(u*exp(v),[u;v])
        returns  [exp(v), u*exp(v)]
 
    See also SYM/CURL, SYM/DIFF, SYM/DIVERGENCE, SYM/GRADIENT, SYM/HESSIAN,
    SYM/POTENTIAL, CURL, DIVERGENCE, HESSIAN, LAPLACIAN, VECTORPOTENTIAL,
    SUBS.

    Documentation for sym/jacobian
       doc sym/jacobian

[Arpita]

sorry, but this is not a function we are dealing with here, but arrays of values. there are separate df and dm values we need. this is why it's difficult to incorporate this particular command.

[John D'Errico]

You cannot differentiate arrays of values. An array of values is just a list of numbers. You asked for explicit intructions, but then did not even provide sufficient information about what you wer doing.

I'm sorry, but you CANNOT differentiate a number. It is just a number. Well, you cam, but the derivative of a number is zero. It does not vary.