The Exponential Function

Instructor:
Prof. Gilbert Strang

Resources:
Summary with practice problems
(PDF with audio - 2.0MB)
(MP3 - 1.9MB)

Practice problems
(PDF no audio)

Free downloads:
Internet Archive (MP4 - 174MB)
iTunes U (MP4 - 85MB)

Professor Strang's Calculus textbook (1st edition, 1991) is freely available here.

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Professor Strang explains how the "magic number e" connects to ordinary things like the interest on a bank account. The graph of
y = ex has the special property that its slope equals its height (it goes up "exponentially fast"!). This is the great function of calculus.