% LKNM x = [1 4 16 64]'; y = [4 38 60 22]'; % f(x) = a * x + b * sqrt(x) + c * log2(x) A(:,1) = x; A(:,2) = sqrt(x); A(:,3) = log2(x); A % papirra 2 sor: A'*A A'*y mo = (A'*A)\(A'*y) % papirra: a = mo(1) b = mo(2) c = mo(3) % papirra: % f(x) = -2 * x + 6 * sqrt(x) + 17 * log2(x) function y = f(x) y = -2 * x + 6 * sqrt(x) + 17 * log2(x); endfunction t = 0:0.1:65; plot(t,f(t),x,y,'*')