/ -a x -b x -c x -d x -a Calcule

#a x (#b) x (#c) x (#d) x (#a)

]]> le signe du résultat est   "-"  car il y a 5 signes  "-"  et "5" est un nombre impair.

et

#e x #f x #g x #h x #e = 1

]]> 0.0000000 1.0000000 0 0 -1]]> Super !

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