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LPosn

the position of the leading power-product in a ModuleElem

Syntax 
LPosn(V: MODULEELEM): INT

Description
This function returns the position of the leading power-product of V .

This function used to be called LPos up to version 5.0.3.

Example 
/**/  Use R ::= QQ[x,y,z];  -- the default term-ordering is DegRevLex
/**/  R4 := NewFreeModule(R,4); -- the default module ordering is TOPos
/**/  LPosn(ModuleElem(R4, [0, x, y^2, x^2]));
4
/**/  LPP(ModuleElem(R4, [0, x, y^2, x^2]));
x^2
/**/  LT(ModuleElem(R4, [0, x, y^2, x^2]));
[0, 0, 0, x^2]


  Use R ::= QQ[x,y], PosTo;
  LT(Vector(x,y^2));
Vector(x, 0)
-------------------------------
  LPP(Vector(x,y^2));
x
-------------------------------
  LPosn(Vector(x,y^2));
1
-------------------------------

See Also