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D.15.14.16 netMap2

Procedure from library nets.lib (see nets_lib).

Usage:
netMap2(f); f map

Assume:
f is a map from a ring to the basering

Return:
visual presentation of the map f, alternative version

Theory:
A Singular object is converted into a character array (a Net) for on screen printing.

Example:
 
LIB "nets.lib";
ring r1=101,(x,y,z),lp;
ring r2=103,(a,b,c),lp;
map f=r1,ab,ac,bc;
netMap2(f);
==> f: r1 --> r2 , x -> ab , y -> ac , z -> bc
==>