New method of analysis based on the use of imaginary coordinates (Q1561255)
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scientific article; zbMATH DE number 2719293
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | New method of analysis based on the use of imaginary coordinates |
scientific article; zbMATH DE number 2719293 |
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New method of analysis based on the use of imaginary coordinates (English)
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1872
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Principiell Neues enthält die Methode nicht. Wird der Punkt \(M\) durch \(\mu =x+iy\) dargestellt, so heisst \[ \frac{(\mu-\mu')(\nu -\nu')}{(\mu -\nu' )(\nu -\mu')} \] das anharmonische Verhältniss der Punkte \(M,M',N,N'.\) Sind zwei Paare von festen Punkten \(M_1,\cdots M_p;\; N_1, \cdots N_p\) gegeben, und ein beweglicher \(V\), so bestimmen die Lagen, für welche \(\frac{ \Pi V M_{\lambda}}{\Pi V N_{\lambda} }\) zum Maximum oder Minimum wird, die Kreispunkte des Systems.
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geometry of the complex plane
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cross ratio
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harmonic relation
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