B=isPurePower f
isPurePower tests a ring element in a polynomial ring to determine whether or not it is nonzero and a power of a variable. isPurePower is used in the lex-plus-powers LPP code.
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The object isPurePower is a method function.
The source of this document is in /build/reproducible-path/macaulay2-1.25.06+ds/M2/Macaulay2/packages/LexIdeals.m2:837:0.