Further study on electrostatic capacitance of an inclined plate capacitor

Developing the expression for calculating the capacitance of an inclined plate capacitor is investigated. From the result when the intersection line of the two planes containing the two electrodes separately lies outside the electrodes, the situation that the intersection line locates on an electrode is treated as a combination of two capacitors. Then the capacitance is achieved in term of complete elliptic integrals. The perpendicular-plate capacitor in such a case is taken as an example for capacitance calculation.