) 中图学技术大荸学系 University of Science and Technology of China DEPARTMENT OF MATHEMATICS y= y y=x y=glx) y=g(r)数 学 系 University of Science and Technology of China DEPARTMENT OF MATHEMATICS x y y = x x* y=g(x) x0 p0 x1 p1 ✓ x y y = x x* y=g(x) x0 p0 x1 p1 