Re: [math-fun] eta as theta

oo pi 1/6 /===\ Theta (--, q ) 1/24 | | k 2 6 eta(q) := q | | (1 - q ) = ---------------- . | | sqrt(3) k = 1

This can't be new. Why isn't it more prevalent?

John McKay just wrote

This is on page 112 of Weber III. [I asked Oliver Atkin] As expected. But my question stands. Seems to me it deserves a mention in BHS, e.g. --rwg