Hamilton's equations

^ Waibel M, Floreano1 D and Keller L (2011) "A quantitative test of Hamilton's rule for the evolution of altruism" PLoS Biology, 9(5): e1000615. doi:10

Hoffman) The Physical Heritage of Sir W. R. Hamilton (PDF) D. R. Wilkins, Hamilton’s Research on Quaternions Quaternion Julia Fractals 3D Raytraced Quaternion