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R = jacobian(w,v)
jacobian(w,v) computes the Jacobian of w with respect to v. w is a symbolic scalar expression or a symbolic column vector. v is a symbolic row vector. The (i,j)-th entry of the result is 
w(i)/v(j).
The statements
w = [x*y*z; y; x+z]; v = [x,y,z]; R = jacobian(w,v) b = jacobian(x+z, v)return
R = [y*z, x*z, x*y] [ 0, 1, 0] [ 1, 0, 1] b = [1, 0, 1]
diff