forward backward and central approximations
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I'm pretty sure I have the code right to plot the graphs for the forward backward an central approximations of a derivative (although I'm not positive). The only thing I need to do now is have it output a value for x=3.2. I'm not quite sure how to do this. Here is my code so far. clear; close all; clc;
delx = 0.05;
x = 0.01:delx:5;
y = 1000.^(x/17);
fig = figure();
set(fig,'color','white');
plot(x,y,'linewidth',2);
xlabel('x');
ylabel('y');
grid on;
yforward = diff(y) ./ delx;
hold on
plot(x(1:end-1)-delx/2,yforward,'r-','linewidth',2);
ybackward = diff(y) ./ delx;
hold on
plot(x(1:end-1)+delx/2,ybackward,'g-','linewidth',2);
ycentral = diff(y) ./ delx;
hold on
plot(x(1:end-1),ycentral,'b-','linewidth',2);
If someone could tell me how to output that value (and also make sure the code is right for the approximations) that would be awesome. Thanks.
0 commentaires
Réponses (0)
Voir également
Catégories
En savoir plus sur Directed Graphs dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!