Arc Length of a Logarithmic Spiral

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The arc length of the logarithmic spiral for running from to equals the length of the tangent .

Contributed by: Izidor Hafner (January 2013)
Open content licensed under CC BY-NC-SA


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Reference

[1] D. Wells, The Penguin Dictionary of Curious and Interesting Geometry, New York: Penguin Books, 1991 pp. 67–68.



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