Figure 6.

Start with four different initial points. True position of target is $x=\left(2,3\right)$. Initial points calculated by the initial gradient algorithm is T-MM-INIT. The randomly selected initial points are $x_0^{\left(1\right)}=\left(-6,2\right)$, $x_0^{\left(2\right)}=\left(0,4\right)$, $x_0^{\left(3\right)}=\left(6,-2\right)$.