Recurrence Relations Courses
Princeton University via Coursera Introduction to Algorithms and Data structures in C++
Udemy Recursion and Backtracking (Memoization, D&C, Combinations)
Udemy Design and Analysis of Algorithms
YouTube Discrete Math
Codecademy Special Functions - Bessels and Legendre
Dr. Gajendra Purohit via YouTube Series Solution
Dr. Gajendra Purohit via YouTube The Basel Problem
Eddie Woo via YouTube Introduction to Generating Functions for A-Level Maths Students
Manchester Grammar School via FutureLearn