similar to: potencia fracional de un número negativo

No sé si he entendido bien la pregunta, pero creo que lo que quieres obtener es esto: (as.complex(-0.5)^(1/5)) Saludos,Salva > To: r-help-es en r-project.org > From: canadasreche en gmail.com > Date: Thu, 15 Oct 2015 10:45:10 +0200 > Subject: Re: [R-es] potencia fracional de un número negativo > > Hola. > No sé si va por aquí, pero prueba a quitar el paréntesis a (-0.5) >

Mirando los comentarios, realmente lo que deseo es encontrar la raíz real de (-0.5)^(1/5) la cual debería ser -0.87055056329. José me hace caer en cuenta que además de no encontrar la raiz real, tampoco da todas las raiz complejas. Habría alguna manera de que tuviera en cuenta? > ------------------------------ > > Message: 6 > Date: Thu, 15 Oct 2015 11:25:39 +0200 > From: José

El problema del módulo es que pierde el signo. En tu caso sale igual porque has invertido el signo del coeficiente en el polinomio (en realidad se me pasó a a mí advertir que el término independiente debe ir con signo negativo): .> polyroot(z=c(0.5,0,0,0,0,1)) [1] 0.7042902+0.5116968i -0.2690149+0.8279428i -0.2690149-0.8279428i [4] 0.7042902-0.5116968i -0.8705506+0.0000000i .> .>

Hola. Algún paquete que calcule la potencia de un U-test? -- Antonio Maurandi [[alternative HTML version deleted]]

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On 21 July 2015 at 02:15, MAURICIO ZAMBRANO BIGIARINI wrote: | Regarding the previous problem with setting up r-devel in Linux Mint | 17.1 64-bit, I deleted all the r-devel files I previously had, and | then I did the check out to the | | '~/svn/r-devel' | | directory originally mentioned by by Dirk on | https://stat.ethz.ch/pipermail/r-sig-debian/2012-August/001935.html, | instead of

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