01 What is Calculus?
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In calculus you start with two big questions about functions.
First how steep is a function at a point?
Second what is the area underneath the graph over some region?
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03 Rates of Change
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Galileo had already discovered some years prior that the distance traveled by a falling object is represented by a function of time. Newton wondered how one could calculate the velocity of the object at any particular instance during the fall.
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