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A quick tutorial on how to enter and use the constant e (2.71828...), also known as the natural anti-log or euler's number on the Casio fx-991 scientific calculator.
Contents:
0:00 Intro
0:23 Buttons used
0:58 How to get euler's number (e)
1:21 How to get euler's number with an exponent
1:55 How to get complex exponentials
2:28 How to get negative exponentials
3:04 Outro