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Neville Theta Function

The functions

$\displaystyle \vartheta_s(u)$ $\textstyle =$ $\displaystyle {H(u)\over H'(0)}$ (1)
$\displaystyle \vartheta_d(u)$ $\textstyle =$ $\displaystyle {\Theta(u+K)\over\Theta(k)}$ (2)
$\displaystyle \vartheta_c(u)$ $\textstyle =$ $\displaystyle {H(u)\over H(K)}$ (3)
$\displaystyle \vartheta_n(u)$ $\textstyle =$ $\displaystyle {\Theta(u)\over\Theta(0)},$ (4)

where $H$ and $\Theta$ are the Jacobi Theta Functions and $K(u)$ is the complete Elliptic Integral of the First Kind.

See also Jacobi Theta Function, Theta Function




© 1996-9 Eric W. Weisstein
1999-05-25