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Processo geral de Clairaut para achar o valor approximado inecial das raizes da equação do \(3^{\circ}\) grào, no caso irreductivel. - MaRDI portal

Processo geral de Clairaut para achar o valor approximado inecial das raizes da equação do \(3^{\circ}\) grào, no caso irreductivel. (Q1534773)

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scientific article; zbMATH DE number 2691409
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Processo geral de Clairaut para achar o valor approximado inecial das raizes da equação do \(3^{\circ}\) grào, no caso irreductivel.
scientific article; zbMATH DE number 2691409

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    Processo geral de Clairaut para achar o valor approximado inecial das raizes da equação do \(3^{\circ}\) grào, no caso irreductivel. (English)
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    Der Verf. zeigt, dass in dem Falle des Casus irreducibilis eine der Wurzeln der Gleichung \(x^3 - px - q = 0\) \((p>0, q>0)\) zwischen den Zahlen: \[ \tfrac 13\, r\, \sqrt{1 + 3m}. \sqrt{p} \; \text{ und }\; \tfrac 13 \left\{ r + \sqrt{1 + 3m - 3\left( \tfrac{2}{\sqrt{3}} - 1\right)^{3}} \right\} \sqrt{p} \] liegt, wo \(m = \frac{q}{p\sqrt{p}}\) ist; ferner dass die Differenz zwischen diesen beiden Werten kleiner als 0,001856 \dots \(\sqrt{p}\) ist.
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