Hackaday also had a great series that nicely answers the question "what is calculus?". There are some really elegant explanations in there. Start here: http://h

Hackaday also had a great series that nicely answers the question "what is calculus?". There are some really elegant explanations in there. Start here: http://hackaday.com/2015/12/15/calculus-is-not-as-hard-as-you-think/ http://hackaday.com/2015/12/15/calculus-is-not-as-hard-as-yo...