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<span>Fabrice Couvreur schrieb am 13.05.2019 um 22:45:</span><br>
<blockquote type="cite"
cite="mid:CACyK-eot5jfDBY08oqB-ZC1LP+FSzxwUp=sUavAYWfP7HoxC-w@mail.gmail.com">
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<div dir="ltr"><div dir="ltr"><div class="gmail_default"
style="font-family:verdana,sans-serif"><span
class="gmail-tlid-translation gmail-translation" lang="en"><span
title="" class="gmail-">Hi,</span><br><span title="" class="gmail-">Not
having too many ideas, I did this: is there not a more elegant way ?</span><span
title=""></span></span><br>
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</blockquote>
\definemathmatrix [pmatrix] [matrix:parentheses] [simplecommand=MATRIX]<br>
<br>
\starttext<br>
<br>
\startformula<br>
\startmathalignment<br>
\NC P \times M = P \NC \iff \MATRIX{x,y} \times
\MATRIX{0.22,0.78;0.53,0.47} = \MATRIX{x,y} \NR<br>
\NC                \NC \iff<br>
\startmathcases<br>
\NC 0.22x + 0.53y = x \NR<br>
\NC 0.78x + 0.47y = y \NR<br>
\stopmathcases<br>
\NR<br>
\NC                \NC \iff 0.78x - 0.53y = 0 \NR<br>
\NC                \NC \iff   78x -   53y = 0 \NR<br>
\stopmathalignment<br>
\stopformula<br>
<br>
\stoptext<br>
<br>
Wolfgang<br>
<br>
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