Alex Berkovich, Heng Huat Chan and Michael J. Schlosser

Wronskians of theta functions and series for 1/π

(33 pages)

Abstract. In this article, we define functions analogous to Ramanujan's function f (n) defined in his famous paper "Modular equations and approximations to π". We then use these new functions to study Ramanujan's series for 1/π associated with the classical, cubic and quartic bases.

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