Math "Newb" Wants to know what a Tensor is Hey, I'll be entering my senior year of High School next year and this summer I'm taking Multivariable Calculus at UCLA. In September I'll start AP Stats. Anyway, what is a Tensor? I've always wondered this question. From what I've gathered, It's a Vector with two bits of information. What are they useful for. How do you "play" with them? Thanks, guys!