# Where can I find the proof of this Ramanujan result?

I'm searching for a proof of one impressive Ramanujan result. Not one in particular, the only request I have is to be really impressive. For example $$\sqrt{\phi+2}-\phi=\frac{e^{-2\pi/5}}{1+\frac{e^{-2\pi}}{1+\frac{e^{-4\pi}}{1+\cdots}}}$$ where $\phi=\frac{1+\sqrt5}{2}$.

Or maybe $$\frac1{\pi}=\frac{2\sqrt2}{9801}\sum_{n=0}^{+\infty}\frac{(4n)!(1103+26390n)}{(n!)^4396^{4n}}\;.$$

Can someone suggest me a precise reference where to find such a proof?

Thank you all

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The first result is known as Rogers-Ramanujan continued fraction. In the reference section of the wiki page, there is a survey article of this stuff by Berndt, B, et al. –  achille hui Jul 27 '14 at 13:20

The series for $1/\pi$ is proved in J. M. Borwein and P. B. Borwein, Pi and the AGM; A Study in Analytic Number Theory and Computational Complexity, Wiley, New York, 1987.