Re: Size of fences, factor key

["Mikael P. Sundqvist" <mickep@gmail.com>]

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On Sat, Apr 21, 2018 at 7:30 PM, Mikael P. Sundqvist <mickep@gmail.com>
wrote:

> Dear Hans and others,
>
> I'm usually use the \big, \Big, \bigg etc to get the size of parentheses,
> brackets and braces to be the size I want. I realize that the fences
> machinery is probably a cleaner way of doing this.
>
> I tried it a bit, and it usually gives the result I like. But sometimes
> not, and it seems that the way to change the size of the
> parentheses/brackets/braces is to use the factor key.
>
> 1) Are the different options none, auto NUMBER explained somehere?
> 2) Could one have, for exceptional cases where the default is not
> satisfactory, a keyword like factor=big for example, to get the same size
> as if one would have used \big?
>
> I am a bit confused. See the example below, with output (from latest
> standalone) attached.
>
> /Mikael
>
> PS: I would suggest to have
>  italic       = { feature = 'ss01', value = 1, comment = "Mathematical
> Alternative Lowercase Italic" },
> set in lucida-opentype-math.lfg. In all books (on math) I have seen, I
> think this is what is used.
>
> %%% Example file:
>
> \setupbodyfont[lucidaot]
>
> \definemathfence[Set][left="007B,right="007D,command=yes]
>
> \startbuffer
> \startformula
> \Set{x\in\mathbb R~:~x^2=1}
> \stopformula
> \stopbuffer
>
>
> \startTEXpage[offset=3bp]
>
> \startformula
> \{x\in\mathbb R~:~ x^2=1\}%Too small
> \stopformula
>
> \startformula
> \bigl\{x\in\mathbb R~:~ x^2=1\bigr\}%I like this one
> \stopformula
>
> \startformula
> \Bigl\{x\in\mathbb R~:~ x^2=1\Bigr\}%Too big
> \stopformula
>
> \getbuffer
>
> \setupmathfence[Set][factor=1]%I like this one
> \getbuffer
>
> \setupmathfence[Set][factor=auto]%Too big
> \getbuffer
>
> %\setupmathfence[Set][factor=big]%Perhaps this could work? Or size=big or
> something
> %\getbuffer
> \stopTEXpage
>

I hate to do this, but a small *bump*

(If it is unclear what I'm asking for, I could try to clarify)

/Mikael

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