I want to obtain an increase in the size of nested parenthesis with a single command like \left and \right, something like the right term of enter image description here

but using the code used for the left term.

(The image is created using \left(1 + \left(f(x),g(x)\right)\right) and \Big(1 + \big(f(x),g(x)\big)\Big))

I could simply use \bib, \Big, ... but I don't want to keep track of the content all the time.

I have no clue how to define a new set of \left and \right for this purpose.

  • I believe that there is no need at all to increase the size; maybe you can use \bigl( and \bigr) for the outer parentheses. Size \Big is definitely excessive. – egreg Jul 15 '20 at 12:19
  • @egreg I have some commands with \left and \right, I can't use \bigl and \bigr if the content has a \frac for example, I want to respect that but always getting a but larger parenthesis that the one the normal \left would give. – Jorge E. Cardona Jul 15 '20 at 13:04
  • @oliversm It does, adding this \delimiterfactor=1001 is enough to obtain my desired effect, I will play with the other quantities to see what else do I get. Thanks! – Jorge E. Cardona Jul 15 '20 at 13:14

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