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D.2.5.3 pmat
Procedure from library inout.lib (see inout_lib).
- Usage:
- pmat(M[,n]); M matrix, n integer
- Return:
- A string representing M in array format if it fits into
pagewidth; if n is given, only the first n characters of
each column are shown (n>1 required), where a truncation
of a column is indicated by two dots (\'..\')
Example:
| | LIB "inout.lib";
ring r=0,(x,y,z),ls;
ideal i= x,z+3y,x+y,z;
matrix m[3][3]=i^2;
pmat(m);
==> x2, xz+3xy, xy+x2,
==> xz, z2+6yz+9y2, yz+3y2+xz+3xy,
==> z2+3yz, y2+2xy+x2, yz+xz
pmat(m,5);
==> x2, xz+.., xy+x2,
==> xz, z2+.., yz+..,
==> z2+.., y2+.., yz+xz
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