| ψ − qFt = ∫ | FG − x3y3 | Fr dx3 | , | |
| F2 − x32 | √ X3 |
(17)
elliptic integrals of the third kind.
Employing G. Kirchhoff’s expressions for X, Y, Z, the coordinates of the centre of the body,
FX = y1 cos xY + y2 cos yY + y3 cos zY,
(18)
FY = −y1 cos xX + y2 cos yX + y3 cos zX,
(19)
G = y1 cos xZ + y2 cos yZ + y3 cos zZ,
(20)