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hyperbolic cosine |
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hyperbolic cosine [¦hī·pər¦bäl·ik ′kō‚sīn] (mathematics) A function whose value for the complex numberzis one-half the sum of the exponential ofzand the exponential of -z. Abbreviated cosh. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Photo: The transcendental function known as the hyperbolic cosine (cosh) can be explored in two ways. |
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