Wir betrachten die durch die Wertetabelle

${\displaystyle {}x}$	${\displaystyle {}1}$	${\displaystyle {}2}$	${\displaystyle {}3}$	${\displaystyle {}\ldots }$	${\displaystyle {}n-2}$	${\displaystyle {}n-1}$	${\displaystyle {}n}$
${\displaystyle {}\pi (x)}$	${\displaystyle {}2}$	${\displaystyle {}3}$	${\displaystyle {}4}$	${\displaystyle {}\ldots }$	${\displaystyle {}n-1}$	${\displaystyle {}n}$	${\displaystyle {}1}$

gegebene Permutation ${\displaystyle {}\pi }$ zu

${\displaystyle {}n\geq 2\,.}$

Bestimme das Signum

${\displaystyle {}\pi }$