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B.7.0.8 Exterior

Procedure from library nctools.lib (see nctools_lib).

Return:
qring, the exterior algebra of a basering

Note:
you have to activate this qring with the "setring" command

Example:
 
LIB "nctools.lib";
ring R = 0,(x(1..3)),dp;
def ER = Exterior();
setring ER;
ER;
==> //   characteristic : 0
==> //   number of vars : 3
==> //        block   1 : ordering dp
==> //                  : names    x(1) x(2) x(3) 
==> //        block   2 : ordering C
==> //   noncommutative relations:
==> //    x(2)x(1)=-x(1)*x(2)
==> //    x(3)x(1)=-x(1)*x(3)
==> //    x(3)x(2)=-x(2)*x(3)
==> // quotient ring from ideal
==> _[1]=x(3)^2
==> _[2]=x(2)^2
==> _[3]=x(1)^2


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