This question already has an answer here:

To reflect the way I draw math by hand, and because I find this more readable, I would like to have \left and \right (or a custom pair of commands) render parentheses‐like symbols with an increasing size, even if their actual content does not get taller.

As is, the code:


renders as:

all parentheses are the same size

I am seeking something roughly looking like:

parentheses are of increasing sizes, the outer the bigger

Of course, just as \left and \right, it would have to work automatically, that is, I wouldn’t have to specify any size information manually. My guess is that \left and \right measure the height of what is between them and compute an appropriate size for the parentheses. So, it might do the trick to alter their behaviour so that they pretend their parentheses to be slightly taller than how they are actually rendered — say, by a 1.2 factor, or whatever.

How can I achieve that?

marked as duplicate by Steven B. Segletes math-mode Apr 12 '17 at 13:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • \delimiterfactor = 1200? – GuM Apr 12 '17 at 12:26
  • @StevenB.Segletes Duplicate indeed. Sorry I didn’t found that question while browsing this website. – Maëlan Apr 12 '17 at 13:15
  • @GustavoMezzetti: That is exactly what I was looking for, thanks! Shame on me for not having found it via my search engine. – Maëlan Apr 12 '17 at 13:19

This works:

% My standard header for TeX.SX answers:
\documentclass[a4paper]{article} % To avoid confusion, let us explicitly 
                                 % declare the paper format.

\usepackage[T1]{fontenc}         % Not always necessary, but recommended.
% End of standard header.  What follows pertains to the problem at hand.


\delimiterfactor = 1200


Text before.
Text after.


Note that changes to \delimiterfactor obey normal scoping rules.

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