| 释义 |
Ramanujan Theta FunctionsRamanujan's one-variable theta function is defined by
 | (1) |
It is equal to the function in the Jacobi Triple Product with ,
Special values include
Ramanujan's two-variable theta function is defined by
 | (5) |
for . It is a generalization of the function 
 | (6) |
and satisfies
 | (7) |
 | (8) |
 | (9) |
where are q-Series.See also Jacobi Triple Product, q-Series, Schröter's Formula
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