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D.12.2.13 wUnit

Procedure from library atkins.lib (see atkins_lib).

Usage:
wUnit(D);

Return:
the number of roots of unity in the quadratic order of discriminant D

Assume:
D<0 a discriminant kongruent to 0 or 1 modulo 4

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.