Dual Cone Visualiser

$H_{v_1}^{+} = \{u \mid \langle u, v_1 \rangle \geq 0\}$

$H_{v_2}^{+} = \{u \mid \langle u, v_2 \rangle \geq 0\}$

Dual cone $\sigma^{\vee}$ (intersection)