I have a continued fraction surrounded by square brackets of unequal size. I want them to be of equal size. I've tried the \delimitershortfall set to a negative value. I've tried \Bigg for the right-hand side as opposed just \big for the left-hand side. Any suggestions to make the brackets of equal size greatly appreciated.

Here's the code:



$\big{\lfloor \frac{1+\frac{1}{1+\frac{1}{1+\frac{1}{1+.....}}}}{\frac{f_{10}}{f_9}} \Bigg{\rfloor}}$


For the continued fraction use \cfrac; then enclose the big fraction in gathered so that it will be vertically centered, so \left\lfloor and \right\rfloor will do their job properly.





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Your \big{\lfloor...} works just by accident. Use \bigl\lfloor for opening and \bigr\rfloor for closing (or the \Bigl-\Bigr and so on variants). While \bigl{\lfloor} works, \left{\lfloor} definitely won't.

  • Your solution is better; I've deleted my answer. – Svend Tveskæg Dec 13 '14 at 22:57

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