RatAnn f
RatAnn(g,f)
RatAnn f computes the annihilator ideal in the Weyl algebra of the rational function $1/f$.
RatAnn(g,f) computes the annihilator ideal in the Weyl algebra of the rational function $g/f$.
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The inputs f and g should be elements of a Weyl algebra, and not elements of a commutative polynomial ring. However, f and g should only use the commutative variables.
The object RatAnn is a method function.