??

linear_regression.m

@@ -8,8 +8,9 @@ y = [2 3 4 5 6];
 n = length(x);
 coeff = [sum(x) n;sum(x) sum(x.^2)];
 f_terms = [sum(y);sum(x.*y)];
-results = inv(coeff) * f_terms;
+results = coeff \ f_terms;
 a = results(1);
 b = results(2);
 f = a + b * x;
 plot(x, y,'', x, f);
+aaaa = @(x) a*x + bl