All,

I don't get anywhere near the nice spacing advertised in the manual for
this example. DVI attached.

\usemodule[math]

%\setupindenting[medium]

\starttext

\def\mx#1{\startmath#1\endmath}

Now every column which has no circled entry is completely zero;
so when $k=6$ and $k=7$ the algorithm outputs two more vectors,
namely
\startdseries[\v!kader=.4pt]
\mx{v^{[2]} =(0,5,5,0,9,5,1,0)},
\mx{v^{[3]} =(0,9,11,9,10,12,0,1)}.
\stopdseries
>From the form of the matrix $A$ after $k=5$, it is evident that
these vectors satisfy the equation $vA =(0,\dotsc,0)$.

\stoptext