e.g. If 4 is given: 1 + 3 + 6 + 10 = 20. Triangular Numbers cannot be negative so return 0 if a negative number is given.

e.g. If 4 is given: 1 + 3 + 6 + 10 = 20. Triangular Numbers cannot be negative so return 0 if a negative number is given.

https://doi.org/10.4169/college.math.j.46.3.172 https://www.jstor.org/stable/10.4169/college.math.j.46.3.172 The College Mathematics Journal emphasizes the first two ...

ABSTRACT: In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of ...