2.3.1 first order ode linear
2.3.2 first order ode separable
2.3.3 first order ode homogA
2.3.4 first order ode homogC
2.3.5 first order ode homogD
2.3.6 first order ode homogD2
2.3.7 first order ode homogG
2.3.8 first order ode homog maple C
2.3.9 first order ode bernoulli
2.3.10 first order ode exact
2.3.11 first order ode clairaut
2.3.12 first order ode dAlembert
2.3.13 first order ode isobaric
2.3.14 first order ode abel
2.3.15 first order ode quadrature
2.3.16 first order ode lie symmetry
2.3.17 first order ode ID 1
2.3.18 first order ode differential
2.3.19 first order ode nonlinear p but separable
2.3.20 first order ode riccati
2.3.21 first order ode chini