  Every torus knot can be represented as a Fourier-(1,1,2) knot which is the
simplest possible Fourier representation for such a knot. This answers a
question of Kauffman and confirms the conjecture made by Boocher, Daigle, Hoste
and Zheng.
  In particular, the torus knot T(p,q) can be parameterized as x(t)=cos(pt),
y(t)=cos(qt+pi/(2p)), and z(t)=cos(pt+pi/2)\cos((q-p)t+pi/(2p)-pi/(4q)).
