[NTG-context] interlaced overbrace and underbrace

Hans Hagen j.hagen at xs4all.nl
Fri Oct 25 23:22:07 CEST 2019


On 10/25/2019 4:54 PM, mf wrote:
> Hello list,
> is there a better way to interlace overbraces and underbraces like this?
> 
> \starttext
> These are the expressions to combine:
> 
> $$\overbrace{a+b+c}+d \quad a+\underbrace{b+c+d}$$
> 
> This is the desired result:
> 
> $$\overbrace{a+b+c}+d \kern-16mm\underbrace{\hbox to 15mm{ }}$$
> 
> \blank
> {\tfx(the underbrace should move down a little more)}
> \stoptext
the best i can so is to provide more options (one day drawing these 
things might come to a grinding halt because of them)


\starttext

\startbuffer
$a + \doublebrace[lt=1em]         {b+c+d} + e$\blank
$a + \overbrace  [lt=1em]         {b+c+d} + e$\blank
$a + \underbrace [lt=1em]         {b+c+d} + e$\blank
$a + \doublebrace[rb=1em]         {b+c+d} + e$\blank
$a + \overbrace  [rb=1em]         {b+c+d} + e$\blank
$a + \underbrace [rb=1em]         {b+c+d} + e$\blank
$a + \doublebrace[lt=1em,rb=1em]  {b+c+d} + e$\blank
$a + \overbrace  [lt=1em,rb=1em]  {b+c+d} + e$\blank
$a + \underbrace [lt=1em,rb=1em]  {b+c+d} + e$\blank
$a + \doublebrace[lt=-4em,rb=-4em]{b+c+d} + e$\blank
\stopbuffer

\typebuffer[option=TEX]

\getbuffer

\stoptext

so, lt for lefttop etc

Hans


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