Package sagbi/SB.GetRing
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< Package sagbi
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| This article is about a function from ApCoCoA-2. |
SB.GetRing
Returns the superring of a given subalgebra.
Syntax
SB.GetRing(S: TAGGED("$apcocoa/sagbi.Subalgebra")): RING
Description
This function returns the superring of a given subalgebra S, i.e. the ring R which S is a subalgebra of.
@param S A subalgebra
@return The superring of S
Example
Use R ::= QQ[x,y,z]; S := SB.Subalgebra(R,[x^2,y+z]); PrintLn SB.GetRing(S); -- RingWithID(1217, "QQ[x,y,z]")
See also
Package sagbi/SB.GetTruncSAGBI
