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Bertrand curve

noun
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Ber·​trand curve | \ ˈber-ˌtränd-, ber-ˈträⁿ- \

Definition of Bertrand curve

: either of two twisted curves having the property that the principal normals to one of them are also principal normals to the other

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History and Etymology for Bertrand curve

after Joseph L. F. Bertrand †1900 French mathematician

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“Bertrand curve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Bertrand%20curve. Accessed 11 Jul. 2020.

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