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D.7.1.7 cyclotomic
Procedure from libraryfinvar.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
LIB "finvar.lib"; ring R=0,(x,y,z),dp; print(cyclotomic(25)); ==> x20+x15+x10+x5+1 |