x = 1:0.01:10
x = 1:0.01:10; A = 1;
y = A * 2.718 .^(x .* (-2)).*cos(x*10); yosh=rand(1,901);
y2 = y + 0.02 * yosh - 0.01
y3 = y2
for i = 3:898
y3(i) = 0.2 *(y2(i-2) + y2(i-1) + y2(i) + y2(i+1) + y2(i+2));
end;
plot(x,y, "red")
plot(x,y2, "green")
plot(x,y3, "blue")
ykv = y2.-y
ykv = y2-y
ykv = (y2-y).^2
ykv = sum((y2-y).^2)
ykv = sum((y2-y).^2)/901
ykv2 = sum((y3-y2).^2)/901
ykv2 = sum((y3-y).^2)/901
y3^2
ykv2 = sum((y3-y2).^2)/901
ykv = sum((y2-y).^2)/901
ykv2 = sum((y3-y).^2)/901