Olivier Ramare on Sun, 07 Jun 2009 17:30:18 +0200

 Jacobi sine theta function ?

Dear all,

can you tell me what is the "Jacobi sine theta function" ?
Is is what is often denoted by theta_1?
I'm interested in the usual theta(ix) = sum_{n\in Z} e^{-n^2 x}
Amities,
Olivier