Asosiy turlari: vertikal asimto x=a agar lim_{x→a} f(x)=±∞; gorizontal asimto y=L agar lim_{x→±∞} f(x)=L; qiya asimto y=kx+b agar lim_{x→±∞}(f(x)-(kx+b))=0, k=lim_{x→±∞} f(x)/x, b=lim_{x→±∞}(f(x)-kx)