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January 19, 2024 15:47
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/* [wxMaxima batch file version 1] [ DO NOT EDIT BY HAND! ]*/ | |
/* [ Created with wxMaxima version 0.8.2 ] */ | |
/* [wxMaxima: comment start ] | |
------------------------------------------------------------------------- | |
FICHERO CON LAS FUNCIONES B�SICAS SOBRE LISTAS. | |
Matem�tica Discreta. | |
Dpto. de Matem�tica Aplicada. ETSISI-UPM. | |
------------------------------------------------------------------------- | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
lista(L):=listp(L); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
conc(L1,L2):=append(L1,L2); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
cab(L):=first(L); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
resto(L):=rest(L); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
long(L):=length(L); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: comment start ] | |
EJEMPLOS: de listas. | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
L1:[9,7,5,3]; | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
L2:[0,2,4,6,8]; | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
L3:[1,[8,7,6],[1,0],3,2]; | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
L4:[[1,2],1,0,[],[[1,3],[],7]] | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: comment start ] | |
EJEMPLO: funci�n recursiva que calcula el factorial de un n�mero natural. | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
f_actorial(n):= if n=0 | |
then 1 | |
else f_actorial(n-1)*n; | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
f_actorial(0);f_actorial(1);f_actorial(2);f_actorial(3);f_actorial(4);f_actorial(5); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: comment start ] | |
EJEMPLO: funci�n recursiva que construye para cada n�mero natural n>=1 | |
la lista de la forma [1,2,3,4,5,....,n]. | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
f_lista(n):= if n=1 | |
then [1] | |
else conc(f_lista(n-1),[n]); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
f_lista(1);f_lista(7); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: comment start ] | |
EJEMPLO: funci�n recursiva que invierte una lista, es decir: inv([1,2,3,4,5])=[5,4,3,2,1], | |
(invierte listas generales, pero solo a un primer nivel). | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
inv(L):= if long(L)=0 | |
then [] | |
else conc(inv(resto(L)),[cab(L)]); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
inv([1,2,3,4,5]);inv([[1,2],1,2,3,[ ],7]); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: comment start ] | |
PROBLEMA: funci�n recursiva que cuenta el n�mero de cadenas de n bits sin dos unos consecutivos | |
(es una funci�n de tipo Fibonacci). | |
[wxMaxima: comment end ] */ | |
/* [wxMaxima: input start ] */ | |
f_sin_11(n):= if n=1 | |
then 2 | |
else if n=2 | |
then 3 | |
else f_sin_11(n-1) + f_sin_11(n-2); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
f_sin_11(1);f_sin_11(2); f_sin_11(3); f_sin_11(4);f_sin_11(5); | |
/* [wxMaxima: input end ] */ | |
/* [wxMaxima: input start ] */ | |
f_sin_11(6);f_sin_11(7);f_sin_11(8); f_sin_11(9); f_sin_11(10); | |
/* [wxMaxima: input end ] */ | |
/* Maxima can't load/batch files which end with a comment! */ | |
"Created with wxMaxima"$ |
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