Sign up today for a weekly math essay and puzzle in your email inbox. Last week we discussed the best way to divvy up a pizza ...

Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

The incompleteness theorem is accepted as part of the mathematical canon today, but columnist Jacob Aron says it was a ...