D.5.12.6 identifyvar

Usage:

identifyvar();

Compute:

Assign 0 to variables x and 1 to variables y, only necessary at the beginning

Return:

list, say l, of size the dimension of the basering
l[i] is: 0 if the i-th variable is x(i),
1 if the i-th variable is y(i)

LIB "resbinomial.lib";
ring r = 0,(x(1),y(2),x(3),y(4),x(5..7),y(8)),dp;
identifyvar();
==> [1]:
==>    0
==> [2]:
==>    1
==> [3]:
==>    0
==> [4]:
==>    1
==> [5]:
==>    0
==> [6]:
==>    0
==> [7]:
==>    0
==> [8]:
==>    1