LIB "tst.lib"; tst_init(); LIB "involut.lib"; def a = makeWeyl(1); setring a; // this algebra is a first Weyl algebra a; def X = findInvo(); setring X; // ring with new variables, corr. to unknown coefficients X; L; // look at the matrix in the new variables, defining the linear involution print(L[1][2]); L[1][1]; // where new variables obey these relations idJ; tst_status(1);$