Am 25.07.2012 um 11:43 schrieb Hans Hagen:
> On 25-7-2012 11:20, dalyoung wrote:
>> Dear all,
>>
>> I made a matrix as follows and I'd like to draw a red frame over the i-th
>> row in a matrix.
>>
>> \startformula
>> \startmatrix[left={\left (\,},right={\,\right)}]
>> \NC a_{11} \NC a_{12} \NC \dots \NC a_{1n} \NR
>> \NC \vdots \NC \vdots \NC \vdots \NC \vdots \NR
>> \NC a_{i1} \NC a_{i2} \NC \cdots \NC a_{in} \NR
>> \NC \vdots \NC \vdots \NC \ddots \NC \vdots \NR
>> \NC a_{m1} \NC a_{m2} \NC \cdots \NC a_{mn} \NR
>> \stopmatrix
>> \stopformula
>>
>> But \frame or \inframe is not working inside matrix.
>> Is there a way to do that?
>
> maybe \mframed
He’s looking for \HL and \VL commands like the table below has to frame a
complete row in the matrix.
\starttext
\startformula
\startmatrix[left={\left(\,},right={\,\right)}]
\NC a_{11} \NC a_{12} \NC \cdots \NC a_{1n} \NR
\NC \vdots \NC \vdots \NC \vdots \NC \vdots \NR
\noalign{\hrule}
\NC a_{i1} \NC a_{i2} \NC \cdots \NC a_{in} \NR
\noalign{\hrule}
\NC \vdots \NC \vdots \NC \ddots \NC \vdots \NR
\NC a_{m1} \NC a_{m2} \NC \cdots \NC a_{mn} \NR
\stopmatrix
\stopformula
\starttable[|*{4}{b{\strut}Mc|}]
\NC a_{11} \NC a_{12} \NC \cdots \NC a_{1n} \NC\NR
\NC \vdots \NC \vdots \NC \vdots \NC \vdots \NC\NR
\HL
\VL a_{i1} \NC a_{i2} \NC \cdots \NC a_{in} \VL\NR
\HL
\NC \vdots \NC \vdots \NC \ddots \NC \vdots \NC\NR
\NC a_{m1} \NC a_{m2} \NC \cdots \NC a_{mn} \NC\NR
\stoptable
\stoptext
Wolfgang
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