Real and complex functions both arise from the fundamental idea of mapping points in a domain to real or complex values, yet their theories display distinctive features. Real functions—mappings ...

What is pure mathematics? What do pure mathematicians do? Why is pure mathematics important? These are questions I’m often confronted with when people discover I do pure mathematics. I always manage ...

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. Abstract, pure ...