Here is the link to the textbook for the second half of the course: generatingfunctionology.
There are HELM (Helping Engineers Learn Mathematics) modules covering partial fractions, 1st order ODE's and 2nd order ODE's, which you may find useful if your knowledge of calculus has become a bit rusty.
66 combinatorial problems involving the Catalan numbers and 141 more
Squared squares and rectangles:
Numberphile video about squaring the square and some extra footage.
Back to my teaching page.
Back to my homepage.