%F
%druge vrstice vektorja F
%VPf2 = x(1)^2 + cos(x(2))*x(3)^2 -1; %primer 1
%VPf2 = x(2)^4 + log(x(1)^2+1)*x(2)^2 - 4;	%primer 2
VPf2 = x(2)^4 + log(x(1)^2+1)*x(3)^2 - 4; %primer 3
%VPf2 = -x(1)^2 + cos(x(2))*sin(x(3)) +0.5;	%primer 4
%VPf2 = x(1)^2 + x(2)^2 + x(3)^2 + sin(3*x(1)) + sin(3*x(2)) + sin(3*x(3)) - 1;	%primer 8

% JF  --> elementi druge vrstice JF, prva je itak zmer ista
	%primer 1
	VPf2dx = 2*x(1);
	VPf2dy = -x(3)^2 * sin(x(2));
	VPf2dz = cos(x(2))*2*x(3);

	%primer2:
	%VPf2dx = (2* x(1) * x(3)^2)/(x(1)^2 +1);
	%VPf2dy = 4*x(2)^3;
	%VPf2dz = 2*x(3)*log(x(1)^2+1);

	%primer3
	VPf2dx =(2*x(1)*x(3)^2) / (x(1)^2 + 1);
	VPf2dy =4*x(3)^3;
	VPf2dz =2*x(3)*log(x(1)^2+1);

	%primer4
	%VPf2dx = -2*x(1);
	%VPf2dy = -sin(x(2))*sin(x(3));
	%VPf2dz = cos(x(2))*cos(x(3));

	%primer8:
	%VPf2dx = 2*x(1) + 3*cos(3*x(1));
	%VPf2dy = 2*x(2) + 3*cos(3*x(2));
	%VPf2dz = 2*x(3) + 3*cos(3*x(3));
	Jac = [VPf1dx VPf1dy VPf1dz;VPf2dx VPf2dy VPf2dz];