Interest is quite possibly the most complex bit of math that the average person has to use everyday. Like the Force, it can be used for good, for evil, and it binds the galaxy together. When interest ...

Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. Suzanne is a content marketer, writer, and ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Compound interest is interest that's calculated on ...

Nobody ever told me this, but I’ve always assumed that a first rule of writing is to never — ever — try to teach math in a newspaper column. But I learned writing through blogging on the interwebs ...