2.4.1 second order ode quadrature
2.4.2 second order linear constant coeff
2.4.3 second order euler ode
2.4.4 second order nonlinear exact ode
2.4.5 second order linear exact ode
2.4.6 second order ode missing x
2.4.7 second order ode missing y
2.4.8 second order integrable as is
2.4.9 second order integrable as is ABC
2.4.10 second order ode can be made integrable
2.4.11 second order ode solved by an integrating factor
2.4.12 second order airy
2.4.13 second order change of variable on x method 2
2.4.14 second order change of variable on x method 1
2.4.15 second order change of variable on y method 1
2.4.16 second order change of variable on y method 2
2.4.17 second order nonlinear solved by mainardi lioville method
2.4.18 second order ode non constant coeff transformation on B
2.4.19 second order bessel ode
2.4.20 second order bessel ode form A
2.4.21 second order kovacic
2.4.22 second order adjoint
2.4.23 reduction of order