ring G; Gauss-Manin system of t with variable s
poly gmspoly=t;
ideal gmsjacob; Jacobian ideal of t
ideal gmsstd; standard basis of Jacobian ideal
matrix gmsmatrix; matrix(gmsjacob)*gmsmatrix==matrix(gmsstd)
ideal gmsbasis; monomial vector space basis of Jacobian algebra
int gmsmaxdeg; maximal weight of variables
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