• API
• FAQ
• Tools
• Archive
SHARE
TWEET

# Untitled

a guest Sep 16th, 2019 86 Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
1. % Computer lab 2 & 3
3. % Max Niia
4.
5. function [ alpha, alphas ] = super_linearity(xi, r)
6.     syms x;
7.
8.     % The first and second derivate of the polynomial
9.     xprim = diff(54*x^6 + 45*x^5 - 102*x^4 - 69*x^3 + 35*x^2 + 16*x - 4, x, 1);
10.     xbis  = diff(54*x^6 + 45*x^5 - 102*x^4 - 69*x^3 + 35*x^2 + 16*x - 4, x, 2);
11.
12.     % The value of the first and second derivative f'(r) and f''(r)
13.     first = vpa(subs(xprim, x, r));
14.     second = vpa(subs(xbis, x, r));
15.     index = size(xi, 2) - 1;
16.     index2 = index - 1;
17.     e = abs(xi(index) - r);
18.     e1 = abs(xi(index2) - r);
19.     alphas = [];
20.     for i = 1:size(xi, 2) - 2
21.         e_i = abs(xi(i) - r);
22.         e_i1 = abs(xi(i + 1) - r);
23.         t_1 = (log(e_i1) + log(abs(second/(2*first))));
24.         n_1 = (log(e_i) + log(abs(second/(2*first))));
25.         alphas(i) = t_1/n_1;
26.     end
27.
28.     t = (log(e) + log(abs(second/(2*first))));
29.     n = (log(e1) + log(abs(second/(2*first))));
30.
31.     alpha = t/n;
32. end
RAW Paste Data
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.

Top