Created
November 18, 2020 12:16
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## Copyright (C) 2020 Jorge Teixeira Crespo | |
## | |
## dicotomia(función, intervalo, error, información) | |
## | |
## Uso: | |
## | |
## función: puntero a la función a analizar. | |
## | |
## intervalo: intervalo a analizar de la función. [izq drcha] | |
## | |
## error: margen de error con el que parar. | |
## | |
## información: 1 o 0, mostrar información del proceso. Default: 0 | |
## | |
## | |
## Ejemplos: | |
## | |
## dicotomia(@func, [0 10], 1/1000, 1) | |
## Analiza el intervalo de 0 a 10 con dicotomía, aproximando las milésimas, | |
## mostrando el proceso, de la función "func" | |
## | |
## dicotomia(@func, [-10 10], 1/10) | |
## Analiza el intervalo de -10 a 10 con dicotomía, aproximando 0.1, | |
## sólo mostrando el resultado, de la función "func". | |
## | |
## | |
## Author: jorge.teixeira <jorge.teixeira@udc.es> | |
## Created: 2020-11-16 | |
function y = dicotomia (f, int, maxerr, v = 0) | |
i = 0; | |
do | |
i++; | |
m = (int(1)+int(2))/2; | |
if(feval(f, int(1))*feval(f, m)<0) | |
if(v) | |
printf("---------------------%d--------------------\n", i) | |
printf("Intervalo analizado: [%.4f %.4f]\n", int(1),int(2)) | |
printf("Punto medio: %.4f\n",m) | |
printf("Raíz en: [ X | ]\n") | |
printf("Error: %.4f\n", abs(int(1)-int(2))/2) | |
endif | |
int = [int(1),m]; | |
endif | |
if(feval(f, int(2))*feval(f, m)<0) | |
if(v) | |
printf("---------------------%d--------------------\n", i) | |
printf("Intervalo analizado: [%.4f %.4f]\n", int(1),int(2)) | |
printf("Punto medio: %.4f\n",m) | |
printf("Raíz en: [ | X ]\n") | |
printf("Error: %.4f\n", abs(int(1)-int(2))/2) | |
endif | |
int = [m,int(2)]; | |
endif | |
until(abs(int(1)-int(2))/2<maxerr) | |
m = (int(1)+int(2))/2; | |
if(v) | |
printf("------------------------------------------\n") | |
endif | |
printf("Intervalo final: [%.4f %.4f]\n", int(1),int(2)) | |
printf("Resultado aproximado: %.4f\n",m) | |
printf("Iteraciones realizadas: %d\n",i+1) | |
endfunction |
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