\text{LaTeX\ renders\ continued\ fractions~}\frac{1}{\sqrt{2} + \frac{1}{\sqrt{3} + \frac{1}{\sqrt{4} + \frac{1}{\sqrt{5} + \frac{1}{\sqrt{6} + \ldots}}}}}\text{~normal\ size\ at\ all\ levels\ in\ all\ contexts}
