ramanujan theta function

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Proper noun

1. {{lb|en|math}} A theta function that [[generalize]]s the form of the [[Jacobi theta function]]s while capturing their general properties. It is defined as: <math>f(a,b) = \sum_{n=-\infty}^\infty a^\frac{n(n+1)}{2} \; b^\frac{n(n-1)}{2} </math> for |''ab''| < 1.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.