Cant seem to find the error in the question, please help
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Write a function that is called like this: mbd = spherical_mirror_aberr(fn,D), where all arguments are scalars, fn is the “f-number” of a concave spherical mirror, D is its diameter in millimeters, and mbd is the mean blur diameter in millimeters. The f-number equals the focal length f of the mirror divided by its diameter. Ideally, all the rays of light from a distant object, illustrated by the parallel lines in the figure, would reflect off the mirror and then converge to a single focal point. The magnified view shows what actually happens. The light striking a vertical plane at a distance f from the mirror is spread over a circular disk
function mbd= spherical_mirror_aberr(fn,D)
f= fn*D
x= 0:0.01:D/2
theta= asin(x/2*f)
d= 2*f*tan(theta)*((1/cos(theta))-1)
delta_x= 0.01
mbd= ((8*delta_x)/D^2)* sum(x*d);
end
[SL: edited to format code as Code]
0 commentaires
Réponses (5)
Walter Roberson
le 2 Fév 2017
Use ./ for your divisions and .* for your multiplications.
0 commentaires
Vijayramanathan B.tech-EIE-118006077
le 13 Fév 2018
Yeah use element wise operator !
function [ mbd ] = spherical_mirror_aberr( fn,D )
%SPHERICAL_MIRROR_ABERR
% fn is the “f-number” of a concave spherical mirror
% D is its diameter in millimeters
% mbd is the mean blur diameter in millimeters.
% Detailed explanation goes here
f=fn*D;
delta_x = 0.01;
x = 0:delta_x:D/2;
theta = asin(x/(2*f));
d=2*f*tan(2*theta).*(1./cos(theta)-1);
mbd=(8*delta_x/D^2)*x*d'
end
0 commentaires
Srishti Saha
le 9 Mai 2018
Modifié(e) : Srishti Saha
le 9 Mai 2018
This function worked perfectly for me:
function mbd = spherical_mirror_aberr( fn,D )
f=fn*D;
delta_x = 0.01;
x = 0:delta_x:D/2;
theta = asin(x/(2*f));
d=2*f*tan(2*theta).*(1./cos(theta)-1);
mbd = (8*delta_x/D^2)*x*d';
end
0 commentaires
Randy Seecharan
le 13 Mai 2018
Try " mbd= ((8*delta_x)/D^2)* sum(x.*d); "
Just change the last multiplication from matrix multiplication to array multiplication Hope that was helpful
0 commentaires
Mohamed Ahmed Khedr
le 17 Oct 2018
Modifié(e) : Mohamed Ahmed Khedr
le 17 Oct 2018
The code work in a good way after i have added . before / and *
function mbd = spherical_mirror_aberr(fn,D)
delta_x= 0.01;
f= fn*D;
x= 0:delta_x:D/2;
theta= asin(x./(2*f));
d= 2*f*tan(2.*theta).*((1./cos(theta))-1);
mbd= ((8*delta_x)/D^2).* sum(x.*d);
end
0 commentaires
Voir également
Catégories
En savoir plus sur Application Deployment 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!