Posted by Who Must Not Be Named on March 05, 2020 at 18:24:13:
In the document "Supplementary Notes (Poisson Brackets II).pdf", on page 4, there seems to be a missing 'square' in the t^3 term of x(t):
[ω^2p(0)/(2m) + 6λx(0)^2 p(0)/m^2] t^3 /3
Similarly, on the same page, there seems to be a missing 'square' in the t^2 term of p(t):
[1/2 ω^2 p(0) + 6λx(0)^2 p(0)/m] t^2