Approximation et simulation des signaux sur Matlab

IV Partie Travail Pratique N4: Fonction d'erreur de Gauss

Code:

e=8;

t=[-10:0.01:10];

g=(exp(-t.^2/ sqrt(e*pi))/sqrt(e*pi);

plot(t,g,'r'); xlabel('temps t');

ylabel('g');

gtext('la fonction erreur de Gauss');

ésultat :

e=8;

t=[-30:0.01:30];

u=10;

f=(exp(-(t-u).^2/sqrt(e*pi))/sqrt(e*pi)); z=plot(t,f,'b')

xlabel('temps t');

ylabel('g');

Chemin inverse de l'obtention de la function de gauss

A = [f]

fid = fopen('fich.m','r+') : ouverture du fichier en mode lecture/écriture

count = fwrite(fid,f) : écriture dans le fichier des valeurs de la fonction f

fclose(fid) : fermeture du fichier

save gausserror : sauvegarde du fichier contenant le code sous Matlab

load gausserror : chargement en mémoire de ce fichier

gausserror : validation et exécution

Réponse : z =

152.0133

A =

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Column 401

0.0000

fid =

+1

-30 -20 -10 0 10 20 30

g

0.18

0.16

0.14

0.12

0.08

0.06

0.04

0.02

0.2

0.1

0

temps t