New: 1.1.18 Old: 1.1.22 Derive the qualitative properties
(symmetries, asymptotes, maxima, minima, ranges, cusps, inflection
points) of the curve from the direction field. Do not solve
the ODE; graphics only. No cheating!
New: 1.2.14 Old: 1.2.14 Also solve it when . Neatly
sketch both solutions in the -plane.
New: 1.3.4 Old: 1.3.4. Use the class procedure, variation of
parameter.
New: 2.4.2 Old: 2.4.2
New: 2.6.4 Old: 2.6.4. Must use variation of parameters.
New: 2.6.16 Old: 2.6.16. Must use undetermined coefficients.
New: 2.6.32 Old: 2.6.50. Must use undetermined coefficients.