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Proof without words: Knopp series for (pi)
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2006-12-01
https://doi.org/10.5485/TMCS.2006.0143
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Copyright (c) 2006 Ángel Plaza
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Plaza, Ángel. (2006). Proof without words: Knopp series for (pi). Teaching Mathematics and Computer Science, 4(2), 451-452. https://doi.org/10.5485/TMCS.2006.0143
Abstract
There are many expressions for number π as infinite series or infinite product (see for example [1, 2, 3]). In [1] the following series for number π is attributed to K. Knopp:...