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UBA - CienciaS • Ver Tema - [con dudas] 2d parcial 2/07/04 ej 5
UBACS Q&A Foro WikiCS
Fecha actual 15 May 2024, 23:41




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Autor Mensaje
 Asunto: [con dudas] 2d parcial 2/07/04 ej 5
NotaPublicado: 31 Jul 2009, 15:09 
Profesor

Registrado: 08 Ago 2008, 21:57
Mensajes: 299
Dice...

Se debe usar el método de Taylor de orden dos con paso h menor que 1 para aproximar la solución de



Hallar h par que al calcular x en t=2.5 el error no supere



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 Asunto: Re: [con dudas] 2d parcial 2/07/04 ej 5
NotaPublicado: 31 Jul 2009, 19:55 
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Registrado: 13 May 2008, 17:55
Mensajes: 98
Yo lo que hago cuando me quedan h, como h es la distancia que hay entre punto y punto que vas tomando, en definitiva es más chico que la distancia de todo el intervalo... entonces lo acotaría por 2.5-2 en este caso. No sé si está bien..


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 Asunto: Re: [con dudas] 2d parcial 2/07/04 ej 5
NotaPublicado: 02 Ago 2009, 15:51 
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Registrado: 17 May 2008, 23:04
Mensajes: 812
También podés pedir o algún valor dado, después despejar el y verificar al final si es consistente la cota inicial de. En general, si no es el método de Euler, te va a quedar con el la constante de Lipschitz.
Saludos.



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I offer her that kernel of myself that I have saved, somehow; the central heart that deals not in words, traffics not with dreams and is untouched by time, by joy, by adversities
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 Asunto: Re: [con dudas] 2d parcial 2/07/04 ej 5
NotaPublicado: 03 Ago 2009, 04:08 
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Registrado: 08 Ago 2008, 21:57
Mensajes: 299
Entiendo las dos opciones...

En tal caso, ¿cuàl de todos los h habría que acotar de modo que cuando asegure que no se erre en más que no haya tomado un h "demasiado" grande?

què rebuscada la pregunta!! o sea... Cómo hago para asegurar un h mínimo? o al menos lo menor posible?


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 Asunto: Re: [con dudas] 2d parcial 2/07/04 ej 5
NotaPublicado: 03 Ago 2009, 04:14 
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Registrado: 17 May 2008, 23:04
Mensajes: 812
Es que, mientras el con el que empezás te de un razonable, no hay drama. Una manera es tomar primero , luego achicar un poco , como ... o sea, empezás con alguna cota y comenzás a afinar.
Espero que se entienda lo que digo...
Saludos



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