# Proof Without Words: The Alternating Harmonic Series Sums to $$\ln 2$$

by Matt Hudelson (Washington State University)

This article originally appeared in:
Mathematics Magazine
October, 2010

Subject classification(s): Calculus | Single Variable Calculus | Series
Applicable Course(s): 3.2 Mainstream Calculus II | 3.5 Non-mainstream Calc II

The result in the title is demonstrated graphically.

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Capsule Course Topic(s):
Sequences and Series | Special Series: Alternating Series