Let \(\gamma\colon \mathbb S^1 \to \mathbb R^3\) be a closed space curve and \(m\in\mathbb R^3\setminus \gamma(\mathbb S^1)\). The solid angle \(\Omega_{\gamma}(m)\) of \(\gamma\) subtended to the point \(m\) is defined as the (signed) spherical area enclosed by the projection \(\hat\gamma\) … Continue reading Tutorial 5 – Solid angle of space curves