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Das Polarsystem

In: Projektive Geometrie der Ebene

Author

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  • Hermann Grassmann

    (Universität Gießen)

Abstract

Zusammenfassung Die Beziehung zwischen den beiden Ausdrücken (125) und (130) des vorigen Abschnitts für die den Grundpunkten e i im zweiten und ersten System zugeordneten Geraden tritt noch etwas deutlicher hervor, wenn man anstatt des Bruches % MathType!MTEF!2!1!+- % feaagaart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaaca % aIXaaabaGaamOuaaaaaaa!378F! $$ \frac{1}{R}$$ den von ihm nur um den konstanten Zahlfaktor a verschiedenen Bruch % MathType!MTEF!2!1!+- % feaagaart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaaca % WGHbaabaGaamOuaaaaaaa!37BA! $$ \frac{a}{R}$$ verwendet, der ja geometrisch dieselbe Reziprozität definiert wie der Bruch % MathType!MTEF!2!1!+- % feaagaart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaaca % aIXaaabaGaamOuaaaaaaa!378F! $$ \frac{1}{R}$$ , nur daß alle Stäbe gegen die entsprechenden Stäbe der Abbildung % MathType!MTEF!2!1!+- % feaagaart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaaeaaca % aIXaaabaGaamOuaaaaaaa!378F! $$ \frac{1}{R}$$ noch mit einem konstanten Zahlfaktor a multipliziert erscheinen.

Suggested Citation

  • Hermann Grassmann, 1913. "Das Polarsystem," Springer Books, in: Projektive Geometrie der Ebene, chapter 0, pages 170-204, Springer.
    • Handle: RePEc:spr:sprchp:978-3-663-15842-4_7
    DOI: 10.1007/978-3-663-15842-4_7
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