# A Simple Introduction to $e$

by Pratibha Ghatage (Cleveland State University)

College Mathematics Journal
September, 2003

Subject classification(s): Calculus
Applicable Course(s): 3.1 Mainstream Calculus I

Look for a number $e$ between $2$ and $3$ for which the area under $y=1/x$ from $1$ to $e$ is $1$.

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