Some of the history I describe at the end is not quite accurate- Al Kwarizmi did not calculate the size of the earth- this had been done long earlier by Eratosthenes & Ptolomy. Kwarizmi wrote an updated version of Ptolomy's geography book, and made super-accurate computations of the latitude and longitude coordinates of all the major cities in the Mediterranean area.
This is a recording of a live class for Math 1172, Calculus 2, an undergraduate course for math majors at Fairfield University, Spring 2021.
Class website: http://cstaecker.fairfield.edu/~cstae...