-- -*- M2-comint -*- {* hash: -629058346 *} i1 : R = ZZ/32003[vars(0..10)] o1 = R o1 : PolynomialRing i2 : M = genericSkewMatrix(R,a,5) o2 = | 0 a b c d | | -a 0 e f g | | -b -e 0 h i | | -c -f -h 0 j | | -d -g -i -j 0 | 5 5 o2 : Matrix R <--- R i3 : ker M o3 = image {1} | gh-fi+ej | {1} | -dh+ci-bj | {1} | df-cg+aj | {1} | -de+bg-ai | {1} | ce-bf+ah | 5 o3 : R-module, submodule of R i4 :