??? Subscript indices must either be real positive integers or logicals.

clear all
close all
d=[0.7, 2, 23.3];
n=[1.5, 1.33, 1.00];
theta= zeros(length(d));
theta(1)= pi/6;
for ii=1:(length(d)-1);
  asin(n(ii)*sin(theta(ii))/n(ii+1))= theta(ii+1);
end 
h= zeros(length(d));
for jj=1:length(d);
  h(jj)= tan(theta(jj))* d(jj);
end
sum(h)

??? Subscript indices must either be real positive integers or logicals.

Error in ==> Untitled at 11 asin(n(ii)*sin(theta(ii))/n(ii+1))= theta(ii+1)

im not sure how to fix this simple code.. please help thanks BN

Answer 1

[Sean de Wolski]

I think you have theta and asin reversed in the first for-loop

theta(..) = asin(..)

[Brenden]

haha thanks.. its always a stupid thing