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7.7.4.0. arrange
Procedure from library dmod.lib (see dmod_lib).

Usage:
arrange(p); int p

Return:
ring

Purpose:
set up the polynomial, describing a hyperplane arrangement

Note:
must be executed in a commutative ring

Assume:
basering is present and it is commutative

Example:
 
LIB "dmod.lib";
ring X = 0,(x,y,z,t),dp;
poly q = arrange(3);
factorize(q,1);
==> _[1]=x
==> _[2]=x+z
==> _[3]=y
==> _[4]=y+z
==> _[5]=x+y
==> _[6]=x+y+z
==> _[7]=z