In addition to that function created by Ramanujan, in physics, a particle named for this letter had its mass correctly predicted by Koide's formula.
In mathematics, a function named for this letter was proven by G.N. Watson to be divisible by six hundred ninety-one for almost all integers, and Derrick Lehmer theorized that this function was not equal to zero for all integers. This function was used in defining a Dirichlet L-Series by its creator and has a generating function defined by an infinite sum of its product with x to the n. In addition to that function created by Ramanujan, in physics, a particle named for this letter had its mass correctly predicted by Koide's formula. In addition to naming that third generation lepton, this letter symbolizes a quantity defined as the cross product of displacement and force. For 10 points, name this Greek letter which represents torque.
In mathematics, a function named for this letter was proven by G.N. Watson to be divisible by six hundred ninety-one for almost all integers, and Derrick Lehmer theorized that this function was not equal to zero for all integers.
{tau}