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Dixon elliptic functions information


The Dixon elliptic functions cm, sm applied to a real-valued argument x. Both functions are periodic with real period π3 ≈ 5.29991625

In mathematics, the Dixon elliptic functions sm and cm are two elliptic functions (doubly periodic meromorphic functions on the complex plane) that map from each regular hexagon in a hexagonal tiling to the whole complex plane. Because these functions satisfy the identity , as real functions they parametrize the cubic Fermat curve , just as the trigonometric functions sine and cosine parametrize the unit circle .

They were named sm and cm by Alfred Dixon in 1890, by analogy to the trigonometric functions sine and cosine and the Jacobi elliptic functions sn and cn; Göran Dillner described them earlier in 1873.[1]

  1. ^ Dixon (1890), Dillner (1873). Dillner uses the symbols

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