Who Cares if $x^2+1=0$ Has a Solution?

by Viet Ngo (California State University Long Beach) and Saleem Watson (California State University Long Beach)

College Mathematics Journal
March, 1998

Subject classification(s): Complex Numbers | Number Concepts | Numbers and Computation
Applicable Course(s): 3.6 Differential Equations | 3.2 Mainstream Calculus II

Four motivating examples of applying complex numbers to real problems

A pdf copy of the article can be viewed by clicking below. Since the copy is a faithful reproduction of the actual journal pages, the article may not begin at the top of the first page.