What is difference equation?

or:What is difference equation?or:It is called calculus and you don't need to worry about it until you get into the class. Then you need to be perfec

or:What is difference equation?

or:It is called calculus and you don't need to worry about it until you get into the class. Then you need to be perfectly prepared in algebra. So spend your time doing algebra drills.

Tags:equations,