Difference between revisions of "Package sagbi/SB.GetRing"
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<short_description>Returns the superring of a given subalgebra.</short_description> | <short_description>Returns the superring of a given subalgebra.</short_description> | ||
| − | <syntax>SB.GetRing(S: TAGGED( | + | <syntax>SB.GetRing(S: TAGGED("$apcocoa/sagbi.Subalgebra")): RING</syntax> |
<description> | <description> | ||
This function returns the superring of a given subalgebra <tt>S</tt>, i.e. the ring <tt>R</tt> which <tt>S</tt> is a subalgebra of. | This function returns the superring of a given subalgebra <tt>S</tt>, i.e. the ring <tt>R</tt> which <tt>S</tt> is a subalgebra of. | ||
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S := SB.Subalgebra(R,[x^2,y+z]); | S := SB.Subalgebra(R,[x^2,y+z]); | ||
PrintLn SB.GetRing(S); | PrintLn SB.GetRing(S); | ||
| − | -- RingWithID(1217, | + | -- RingWithID(1217, "QQ[x,y,z]") </example> |
</description> | </description> | ||
Latest revision as of 13:21, 29 October 2020
| This article is about a function from ApCoCoA-2. |
SB.GetRing
Returns the superring of a given subalgebra.
Syntax
SB.GetRing(S: TAGGED("$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
