Find a series solution for Airy's equation about x=-1, what does this about x=-1 mean? Here is Airy's equation: y''+p(t) y'+q(t) y=0. THe professor doesn't give any 2nd order Differential equation, just the directions of: Fridays Homework problem Is to find a series solution for Airy's equation about x=-1 Can i use this as my equation? y''-t y=0 and then: These equations are known as the "recurrence relations" of the differential equations. The recurrence relations permit us to compute all coefficients in terms of a0 and a1. We already know from the 0th recurrence relation that a2=0. Let's compute a3 by reading off the recurrence relation for n=1: But what is this thing all about x=-1? Thanks!