Unfamiliar infinite series

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I came across a really unfamiliar sort of questions while studying infinite series (convergence, divergence, sum etc..).

$$\displaystyle{1+\displaystyle{\frac{1}{\displaystyle{1+\frac{1}{\displaystyle{1+\frac{1}{1+\cdots}}}}}}}$$

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You can let $$x=\displaystyle{1+\displaystyle{\frac{1}{\displaystyle{1+\frac{1}{\displaystyle{1+\frac{1}{1+\cdots}}}}}}}$$ then $$x=1+\frac{1}{x}$$ which evaluates to $$x=\frac{1+\sqrt5}{2}$$since $x>0$