wsigma

Evaluation of the Weierstrass sigma function.

Evaluation of the Jacobi theta functions and related
functions: Weierstrass elliptic function, Weierstrass sigma function,
Weierstrass zeta function, Klein j-function, Dedekind eta function,
lambda modular function, Jacobi elliptic functions, Neville theta
functions, Eisenstein series, lemniscate elliptic functions, elliptic
alpha function, Rogers-Ramanujan continued fractions, and Dixon
elliptic functions. Complex values of the variable are supported.

Stc3<a9>phane Laurent

jacobi

Jacobi Theta Functions and Related Functions

Stéphane Laurent

Mikael Fremling

wsigma function

<dl><dt>z</dt>
<dd>a complex number, vector or matrix</dd>
<dt>g</dt>
<dd>the elliptic invariants, a vector of two complex numbers; only 
one of <code>g</code>, <code>omega</code> and <code>tau</code> must be given</dd>
<dt>omega</dt>
<dd>the half-periods, a vector of two complex numbers; only 
one of <code>g</code>, <code>omega</code> and <code>tau</code> must be given</dd>
<dt>tau</dt>
<dd>the half-periods ratio; supplying <code>tau</code> is equivalent to 
supply <code>omega = c(1/2, tau/2)</code></dd></dl>

Arguments

Weierstrass sigma function — wsigma

<dl>

<dt>z</dt>
<dd>a complex number, vector or matrix</dd>


<dt>g</dt>
<dd>the elliptic invariants, a vector of two complex numbers; only 
one of <code>g</code>, <code>omega</code> and <code>tau</code> must be given</dd>


<dt>omega</dt>
<dd>the half-periods, a vector of two complex numbers; only 
one of <code>g</code>, <code>omega</code> and <code>tau</code> must be given</dd>


<dt>tau</dt>
<dd>the half-periods ratio; supplying <code>tau</code> is equivalent to 
supply <code>omega = c(1/2, tau/2)</code></dd>

</dl>

wsigma: Weierstrass sigma function

Description

Usage

Value

Arguments

Examples