Cyclotomic polynomials
From specialfunctionswiki
The cyclotomic polynomials $\phi_n(x)$ are given by $$\phi_n(x)=\displaystyle\prod_{1\leq k\leq n;\mathrm{gcd}(k,n)=1} x-e^{2i\pi \frac{k}{n}}.$$
The cyclotomic polynomials $\phi_n(x)$ are given by $$\phi_n(x)=\displaystyle\prod_{1\leq k\leq n;\mathrm{gcd}(k,n)=1} x-e^{2i\pi \frac{k}{n}}.$$
