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7.5.5.0. insertGenerator
Procedure from library dmodapp.lib (see dmodapp_lib).
- Usage:
- insertGenerator(id,p[,k]);
id an ideal/module, p a poly/vector, k an optional int
- Return:
- of the same type as id
- Purpose:
- inserts p into id at k-th position and returns the enlarged object
- Note:
- If k is given, p is inserted at position k, otherwise (and by default),
p is inserted at the beginning (k=1).
Example:
| | LIB "dmodapp.lib";
ring r = 0,(x,y,z),dp;
ideal I = x^2,z^4;
insertGenerator(I,y^3);
==> _[1]=y3
==> _[2]=x2
==> _[3]=z4
insertGenerator(I,y^3,2);
==> _[1]=x2
==> _[2]=y3
==> _[3]=z4
module M = I*gen(3);
insertGenerator(M,[x^3,y^2,z],2);
==> _[1]=x2*gen(3)
==> _[2]=x3*gen(1)+y2*gen(2)+z*gen(3)
==> _[3]=z4*gen(3)
insertGenerator(M,x+y+z,4);
==> _[1]=x2*gen(3)
==> _[2]=z4*gen(3)
==> _[3]=0
==> _[4]=x*gen(1)+y*gen(1)+z*gen(1)
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See also:
deleteGenerator.
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