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D.6.9.13 newtonpoly

Procedure from library hnoether.lib (see hnoether_lib).

Usage:
newtonpoly(f); f poly

Assume:
basering has exactly two variables;
f is convenient, that is, f(x,0) != 0 != f(0,y).

Return:
list of intvecs (= coordinates x,y of the Newton polygon of f).

Note:
Procedure uses execute; this can be avoided by calling newtonpoly(f,1) if the ordering of the basering is ls.

Example:
 


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