Which Algebra for Dummies book is best? In short, algebra is dealing with problems involving variables and unknowns. It can range from something as simple as finding a single exponent — labeled “x” — ...

High school math, and algebra, in particular, is in crisis. Although some students thrive on the pathway to calculus, most do not. Algebra I is the single most failed course in American high schools.

Whether you’re passing secret notes in class or downloading images from a space probe, Reed-Solomon codes offer an ingenious way to embed information and correct for errors. Space exploration requires ...