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- h = 0.3;
- x = 0.5;
- p1 = '2*exp(x^2+1)*x';
- p2 = '2*exp(x^2+1)*(2*x^2+1)';
- p3 = '4*exp(x^2+1)*x*(2*x^2+3)';
- w1 = eval(p1);
- w2 = eval(p2);
- w3 = eval(p3);
- for i=1:70
- H(i) = h*2^(-(i-1));
- RoznicaCentralna(i) = rcentralna(x,H(i));
- RoznicaProgresywna(i) = rprogresywna(x, H(i));
- BladWzglednyCentralna(i) = (RoznicaCentralna(i)-w1)/w1;
- BladWzglednyProgresywna(i) = (RoznicaProgresywna(i)-w1)/w1;
- BladCentralna(i) = ((-1/6)*(H(i))^2*w3)/w1;
- BladProgresywna(i) = ((1/2)*H(i)*w2)/w1;
- end
- loglog(H, abs(BladWzglednyCentralna), H, abs(BladWzglednyProgresywna), H, abs(BladCentralna), H, abs(BladProgresywna))
- xlabel('log(h)');
- ylabel('log(B)');
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