This is a good book. I found it preferable to regular epsilon delta when I was in highschool. http://www.math.wisc.edu/~keisler/calc.html http://www.math.wisc.

This is a good book. I found it preferable to regular epsilon delta when I was in highschool. http://www.math.wisc.edu/~keisler/calc.html http://www.math.wisc.edu/~keisler/calc.html