1.3.1 Abel's formula

Abel’s formula lets us compute the Wronskian of a 2nd order linear homogeneous DE without needing to necessarily know the solutions.

Abel’s formula §

Suppose $y^{\prime \prime }+p(t)y^{\prime }+q(t)y=0$. Then $W(y_1,y_2)(t)=C\exp (-\int p(t)dt)$https://math.berkeley.edu/~peyam/Math54Fa11/Practice%20Exams/Abel’s%20Formula.pdf