### Re: [NTG-context] Possibly bug: misalignment with matrix


On 10/12/2014 7:08 PM, Xan wrote:

and

\item $\startdet[n=3] \NC yz \NC \frac{1}{x} \NC x \NR \NC zx \NC \frac{1}{y} \NC y \NR \NC xy \NC \frac{1}{z} \NC z \NR \stopdet$

puts x over 1 in the second row

in a next beta ...

\definemathmatrix[TheMatrixA][left={\left\lvert\,},right={\,\right\rvert}]
\definemathmatrix[TheMatrixB][left={\left\lvert\,},right={\,\right\rvert},strut=1.25]
\definemathmatrix[TheMatrixC][left={\left\lvert\,},right={\,\right\rvert},strut=1.50]

\starttext

$\startTheMatrixA[n=3] \NC yz \NC \frac{1}{x} \NC x \NR \NC zx \NC \frac{1}{y} \NC y \NR \NC xy \NC \frac{1}{z} \NC z \NR \stopTheMatrixA$

$\startTheMatrixB[n=3] \NC yz \NC \frac{1}{x} \NC x \NR \NC zx \NC \frac{1}{y} \NC y \NR \NC xy \NC \frac{1}{z} \NC z \NR \stopTheMatrixB$

$\startTheMatrixC[n=3] \NC yz \NC \frac{1}{x} \NC x \NR \NC zx \NC \frac{1}{y} \NC y \NR \NC xy \NC \frac{1}{z} \NC z \NR \stopTheMatrixC$

\stoptext

upto you to wikify it

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### Re: [NTG-context] Possibly bug: misalignment with matrix

Another bug.

@Hans: At least for user view point it's a bug.
@Thangalin: thanks. A bigskip will solve me problems, but thanks.

\definemathmatrix[det]
[left={\left\lvert\,},right={\,\right\rvert}]

\starttext
Calculeu els determinants següents:

\startitemize[a,columns]

\item $\startdet[n=4] \NC 1 \NC 1 \NC 1 \NC 1 \NR \NC 1 \NC 2 \NC 3 \NC 4 \NR \NC 1 \NC 3 \NC 6 \NC 10 \NR \NC 1 \NC 4 \NC 10 \NC 20 \NR \stopdet$

\item $\startdet[n=4] \NC 1 \NC -2 \NC 0 \NC 1 \NR \NC 1 \NC 1 \NC 0 \NC 2 \NR \NC 0 \NC 3 \NC -2 \NC -1 \NR \NC 1 \NC 1 \NC 1 \NC 3 \NR \stopdet$

\item $\startdet[n=5] \NC 1 \NC 2 \NC 3 \NC 4 \NC 5 \NR \NC 2 \NC 3 \NC 4 \NC 5 \NC 1 \NR \NC 3 \NC 4 \NC 5 \NC 1 \NC 2 \NR \NC 4 \NC 5 \NC 1 \NC 2 \NC 3 \NR \NC 5 \NC 1 \NC 2 \NC 3 \NC 4 \NR \stopdet$

\item $\startdet[n=3] \NC 1 \NC 2 \NC 3 \NR \NC 1 \NC 4 \NC 9 \NR \NC 1 \NC 8 \NC 27 \NR \stopdet$

\stopitemize

Proveu, sense desenvolupar, que els determinants següents són nuls:

\startitemize[a]
\item $\startdet[n=3] \NC -\sqrt{3} \NC 3 \NR \NC 5 \NC -\sqrt{3}\cdot 5 \NR \stopdet$

\item $\startdet[n=3] \NC 2 \NC 1 \NC 3 \NR \NC 1 \NC 0 \NC 1 \NR \NC -3 \NC 2 \NC -1 \NR \stopdet$

\stopitemize

\stoptext

matrix2.pdf
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### Re: [NTG-context] Possibly bug: misalignment with matrix

and

\item $\startdet[n=3] \NC yz \NC \frac{1}{x} \NC x \NR \NC zx \NC \frac{1}{y} \NC y \NR \NC xy \NC \frac{1}{z} \NC z \NR \stopdet$

puts x over 1 in the second row
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### Re: [NTG-context] Possibly bug: misalignment with matrix


On 10/7/2014 8:06 PM, Thangalin wrote:

Looks like a bug; adding blank rows works around the problem (but
looks terrible):

\definemathmatrix[pmatrix] [left={\left(\,},right={\,\right)}]

\starttext
Digueu quines de les matrius següents són regulars. Quan ho siguin,
trobeu la inversa

\startitemize[a,columns,four]
\item \startpmatrix[n=4]
\NC \NR
\NC 2 \NC 3 \NR
\NC 6 \NC 7 \NR
\NC \NR
\stoppmatrix

\item \startpmatrix[n=4]
\NC 3 \NC 2 \NC 1 \NR
\NC 4 \NC 5 \NC 3 \NR
\NC 5 \NC 0 \NC -2 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC 5 \NC 4 \NC 2 \NR
\NC 2 \NC 2 \NC 3 \NR
\NC 7 \NC 6 \NC 5 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC a \NC 0 \NC 0 \NC 0 \NR
\NC 0 \NC b \NC 0 \NC 0 \NR
\NC 0 \NC 0 \NC c \NC 0 \NR
\NC 0 \NC 0 \NC 0 \NC d \NR
\stoppmatrix

\stopitemize

\stoptext

not a bug ...

(1) the matrix is centered around the math axis and has equal height and
depth so indeed in columns that will not align horizontally

(2) there is no n|m key support in matrices so the n does nothing in
this kind of matrix

Hans

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### Re: [NTG-context] Possibly bug: misalignment with matrix


On Thu, 9 Oct 2014, Hans Hagen wrote:

On 10/7/2014 8:06 PM, Thangalin wrote:

Looks like a bug; adding blank rows works around the problem (but
looks terrible):

\definemathmatrix[pmatrix] [left={\left(\,},right={\,\right)}]

\starttext
Digueu quines de les matrius següents són regulars. Quan ho siguin,
trobeu la inversa

\startitemize[a,columns,four]
\item \startpmatrix[n=4]
\NC \NR
\NC 2 \NC 3 \NR
\NC 6 \NC 7 \NR
\NC \NR
\stoppmatrix

\item \startpmatrix[n=4]
\NC 3 \NC 2 \NC 1 \NR
\NC 4 \NC 5 \NC 3 \NR
\NC 5 \NC 0 \NC -2 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC 5 \NC 4 \NC 2 \NR
\NC 2 \NC 2 \NC 3 \NR
\NC 7 \NC 6 \NC 5 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC a \NC 0 \NC 0 \NC 0 \NR
\NC 0 \NC b \NC 0 \NC 0 \NR
\NC 0 \NC 0 \NC c \NC 0 \NR
\NC 0 \NC 0 \NC 0 \NC d \NR
\stoppmatrix

\stopitemize

\stoptext

not a bug ...

(1) the matrix is centered around the math axis and has equal height and
depth so indeed in columns that will not align horizontally

IIRC, we had added a location=(high|middle|low) key to change that
behaviour. (Sorry, cannot test right now).

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### Re: [NTG-context] Possibly bug: misalignment with matrix

Hi Xan,

It's not exactly what you want, but maybe it'll give you some other ideas:

\definemathmatrix[pmatrix][
left={\left(\,},
right={\,\right)},
]

\definenumber[pmatrix]
\resetnumber[pmatrix]

\define\nextmatrix{
\incrementnumber[pmatrix]
\getnumber[pmatrix].
}

\define[2]\pmatrices{
\blank[big]
\framed[frame=off]{
\startmixedcolumns[n=#1]
#2
\stopmixedcolumns
}
}

\starttext
Digueu quines de les matrius següents són regulars. Quan ho siguin,
trobeu la inversa

\pmatrices{4}{
\nextmatrix
\startpmatrix
\NC 2 \NC 3 \NR
\NC 6 \NC 7 \NR
\stoppmatrix
\column

\nextmatrix
\startpmatrix
\NC 3 \NC 2 \NC 1 \NR
\NC 4 \NC 5 \NC 3 \NR
\NC 5 \NC 0 \NC -2 \NR
\stoppmatrix
\column

\nextmatrix
\startpmatrix
\NC 5 \NC 4 \NC 2 \NR
\NC 2 \NC 2 \NC 3 \NR
\NC 7 \NC 6 \NC 5 \NR
\stoppmatrix
\column

\nextmatrix
\startpmatrix
\NC a \NC 0 \NC 0 \NC 0 \NR
\NC 0 \NC b \NC 0 \NC 0 \NR
\NC 0 \NC 0 \NC c \NC 0 \NR
\NC 0 \NC 0 \NC 0 \NC d \NR
\stoppmatrix
}
\stoptext
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### [NTG-context] Possibly bug: misalignment with matrix

Hi,

Minimal example:

\definemathmatrix[pmatrix]
[left={\left(\,},right={\,\right)}]

\starttext
Digueu quines de les matrius següents són regulars. Quan ho siguin, trobeu la
inversa

\startitemize[a,columns,four]
\item \startpmatrix[n=2]
\NC 2 \NC 3 \NR
\NC 6 \NC 7 \NR
\stoppmatrix

\item \startpmatrix[n=3]
\NC 3 \NC 2 \NC 1 \NR
\NC 4 \NC 5 \NC 3 \NR
\NC 5 \NC 0 \NC -2 \NR
\stoppmatrix

\item \startpmatrix[n=3]
\NC 5 \NC 4 \NC 2 \NR
\NC 2 \NC 2 \NC 3 \NR
\NC 7 \NC 6 \NC 5 \NR
\stoppmatrix

\item \startpmatrix[n=4]
\NC a \NC 0 \NC 0 \NC 0 \NR
\NC 0 \NC b \NC 0 \NC 0 \NR
\NC 0 \NC 0 \NC c \NC 0 \NR
\NC 0 \NC 0 \NC 0 \NC d \NR
\stoppmatrix

\stopitemize

\stoptext

produces misalignment in last item (I attach pdf)

Can anyone confirm that?

Thanks,
Xan

matrix.pdf
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### Re: [NTG-context] Possibly bug: misalignment with matrix

Looks like a bug; adding blank rows works around the problem (but
looks terrible):

\definemathmatrix[pmatrix] [left={\left(\,},right={\,\right)}]

\starttext
Digueu quines de les matrius següents són regulars. Quan ho siguin,
trobeu la inversa

\startitemize[a,columns,four]
\item \startpmatrix[n=4]
\NC \NR
\NC 2 \NC 3 \NR
\NC 6 \NC 7 \NR
\NC \NR
\stoppmatrix

\item \startpmatrix[n=4]
\NC 3 \NC 2 \NC 1 \NR
\NC 4 \NC 5 \NC 3 \NR
\NC 5 \NC 0 \NC -2 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC 5 \NC 4 \NC 2 \NR
\NC 2 \NC 2 \NC 3 \NR
\NC 7 \NC 6 \NC 5 \NR
\NC
\stoppmatrix

\item \startpmatrix[n=4]
\NC a \NC 0 \NC 0 \NC 0 \NR
\NC 0 \NC b \NC 0 \NC 0 \NR
\NC 0 \NC 0 \NC c \NC 0 \NR
\NC 0 \NC 0 \NC 0 \NC d \NR
\stoppmatrix

\stopitemize

\stoptext
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