$$x_{1} = - \frac{3 \pi}{2}$$
=
$$- \frac{3 \pi}{2}$$
=
-4.71238898038469
$$y_{1} = \frac{3 \pi}{4} + \frac{7}{2}$$
=
$$\frac{3 \pi}{4} + \frac{7}{2}$$
=
5.85619449019234
$$x_{2} = \frac{\pi}{2}$$
=
$$\frac{\pi}{2}$$
=
1.57079632679490
$$y_{2} = \frac{7}{2} - \frac{\pi}{4}$$
=
$$\frac{7}{2} - \frac{\pi}{4}$$
=
2.71460183660255