theta.s {jacobi}

Neville theta functions

Description

Evaluation of the Neville theta functions.

Usage

theta.s(z, tau = NULL, m = NULL)

theta.c(z, tau = NULL, m = NULL)

theta.n(z, tau = NULL, m = NULL)

theta.d(z, tau = NULL, m = NULL)

Arguments

z

a complex number, vector, or matrix

tau

complex number with strictly positive imaginary part; it is related to m and only one of them must be supplied

m

the "parameter", square of the elliptic modulus; it is related to tau and only one of them must be supplied

Value

A complex number, vector or matrix.