# [OS X TeX] Latex question: custom size of delimiters

Michael Sharpe msharpe at ucsd.edu
Mon Nov 3 19:22:27 CET 2014

> On Nov 3, 2014, at 3:37 AM, Themis Matsoukas <tmatsoukas at icloud.com> wrote:
>
> What is the best way to create a delimiter, say \left(, with defined size, say vertical length 100 pt?
>
> Themis
>
>

The way extensible symbols work in TeX makes it hard to get an exact prescribed vertical size without resorting to defining your own macros to put together symbols from existing fragments. With something like \left(, the vertical sizes form a discrete sequence and the precise behavior of \left depends on two parameters, \delimiterfactor (an integer) and \delimitershortfall (a dimension)---see the TeXBook. Perhaps it will be close enough to say $\left(\vrule height 52.5pt width 0pt\right.$ (The math axis is fairly close to 2.5pt for a number of fonts.)

Michael