In current time the different programs and computer things with math
Online Calculators - Google search(actually works as a basic calculator try it search "2+2 ", mathematica (http://integrals.wolfram.com/index.jsp),
Wolfram Alpha (http://www.wolframalpha.com/) a math index of pretty much everything that has to do with science or math.
Computer Programming algorhythems (how it deals with society)
just putting this in so I don't have to keep looking back at the e-mail