Cotangent
= Cotangent
{title2=$\cot z$}
The cotangent is the quotient $\cot z=\cos z/\sin z$, wherever the <sine> denominator is nonzero. Its meromorphic continuation has simple <poles> at integer multiples of $\pi$.
= Cotangent
{title2=$\cot z$}
The cotangent is the quotient $\cot z=\cos z/\sin z$, wherever the <sine> denominator is nonzero. Its meromorphic continuation has simple <poles> at integer multiples of $\pi$.