[NTG-context] Math equation with indentation
Aditya Mahajan
adityam at umich.edu
Wed May 14 16:45:03 CEST 2008
On Wed, 14 May 2008, 302302 wrote:
>> On Tue, 13 May 2008, 302302 wrote:
>>
>>> Hi,
>>> I need to use a multieqaution in this form ( http://img233.imageshack.us/img233/2372/eqsx3.png ). I am mostly interested in the right brace and >the indentation after the "subject to". I tried to use mathmatrix but without success. Can you help me with it?>
>>
>> I am using nested matrices, but this is one case which will be best solved
>> by something equivalent for gathered and aligned. It has been on my todo
>> list for a long time.
>>
>> Here is a solution using nested matrices, where I use \noalign to fake
>> correct spacing after the first line (and changed the \cdots in the last
>> condition to \dots).
>>
>> \definemathmatrix[rightbrace][left={\left.},right={\,\right\}},n=1,align=left]
>>
>> \starttext
>>
>> \placeformula[+] \startformula
>> \startrightbrace
>> \NC \min \{c_1 x_1 + c_2 x_2 + \cdots + c_n x_n \} \NR
>> \noalign{\vskip 0.2em}
>> \NC \text{subject to} \NR
>> \NC \quad
>> \startmathmatrix[n=9,align={middle,middle,middle,
>> middle,middle,middle,right,middle,middle},
>> distance=0.3em]
>> \NC a_{11} x_1 \NC + \NC a_{12} x_2 \NC +
>> \NC \cdots \NC + \NC a_{1n} x_n \NC = \NC b_1 \NR
>> \NC a_{21} x_1 \NC + \NC a_{22} x_2 \NC +
>> \NC \cdots \NC + \NC a_{2n} x_n \NC = \NC b_2 \NR
>> \NC \NC \NC \vdots \NC
>> \NC \NC \NC \NC \NC \vdots \NR
>> \NC a_{m1} x_1 \NC + \NC a_{m2} x_2 \NC +
>> \NC \cdots \NC + \NC a_{mn} x_n \NC = \NC b_m \NR
>> \NC \NC \NC \NC
>> \NC \NC
>> \NC \llap{x_1,x_2,\dots,x_n} \NC \ge \NC 0.
>> \stopmathmatrix \NR
>> \stoprightbrace
>> \stopformula
>>
>> \stoptext
>>
>>
>> Aditya
>
> Great, thanks a lot! And is there any way how to get in the first line \min_{x \in X} with the parameter exactly below the "min"? Because in this solution the parameter {x \in X} is on the right bottom, like in a line.
Add style=\displaystyle as an option in the definition of rightbrace.
Aditya
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