DedekindEta
 Usage
• DedekindEta[ ] gives the Dedekind eta modular elliptic function  .
Notes
• Mathematical function (see Section A.3.10). • DedekindEta is defined only in the upper half of the complex  plane. It is not defined for real  . • The argument  is the ratio of Weierstrass half-periods  . • DedekindEta satisfies  where  is the discriminant, given in terms of Weierstrass invariants by  . • See Section 3.2.12 for a discussion of argument conventions for elliptic functions. • New in Version 3.
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