Top
Back: invariant_algebra_perm
Forward: group_reynolds
FastBack:
FastForward:
Up: finvar_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.7.1.7 cyclotomic

Procedure from library finvar.lib (see finvar_lib).

Usage:
cyclotomic(i); i integer > 0

Returns:
the i-th cyclotomic polynomial (type <poly>) as one in the first ring variable

Theory:
x^i-1 is divided by the j-th cyclotomic polynomial where j takes on the value of proper divisors of i

Example:
 
LIB "finvar.lib";
ring R=0,(x,y,z),dp;
print(cyclotomic(25));
==> x20+x15+x10+x5+1


Top Back: invariant_algebra_perm Forward: group_reynolds FastBack: FastForward: Up: finvar_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 4.3.1, 2022, generated by texi2html.