Observe the non-round shape of the parenthesis using the fourier package \usepackage{fourier} . In particular they are not round :

enter image description here enter image description here

compare this to lmodern parenthesis which are round in shape enter image description here enter image description here

I'd like to replace the parenthesis used by the fourier font with a suitable compatible replacement which has a round shape.

It seems not trivial since I would have to replace every parenthesis shape and not just an individual symbol. I would like the fix to be compatible with usage of e.g. \bigl and so forth.


1 Answer 1


Imho the cm-delimiters don't look good in combination with fourier, but beside this it is a simple case of redefining the delimiter:


\DeclareSymbolFont{cmoperators}   {OT1}{cmr} {m}{n}


\DeclareMathDelimiter{(}{\mathopen} {cmoperators}{"28}{cmlargesymbols}{"00}


f(x)  f\bigl( x \bigr) f\Biggl( x \Biggr )


enter image description here

  • I was trying to to replace them with the mathdesign style, I cannot seem to locate the appropriate dcl files for math design. I belive it is some mdsymbols file which I cannot locate but there is also mdlargesymbols? Perhaps there is a more harmonic font parenthesis that you recommend other than mathdesign. In addition, this does not seem to also replace the text mode parenthesis.
    – mu7z
    Jun 7, 2017 at 18:48
  • mathdesign offers various styles and without an minimal example I won't try to guess which one you want. And not, you can't replace text parenthesis this way. You would need a virtual font for this. Jun 7, 2017 at 19:15

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