Mathematik-Online lexicon: Example: Poles

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	Mathematik-Online lexicon:
	Example: Poles

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The function

$\displaystyle f(x)=\frac{x+1}{x-1}$

has a pole at the point

because the denominator is zero there and the nominator not.

The straight line with the equation is a vertical asymptote.

$\includegraphics[width=0.8\textwidth]{pol.eps}$

(Author: Knödler)

automatisch erstellt am 8. 7. 2004