chazhi41.java

数值分析之计算方法与实验4：插值法 by java

class Chazhi41{
  static void L2(double x){
     double y=((x-1.0)*(x-3.0)*1.0)/((-3.0-1.0)*(-3.0-3.0))+((x-3.0)*(x+3.0)*2.0)/((1.0+3.0)*(1.0-3.0))
     +((x+3.0)*(x-1.0)*1.0)/((3.0+3.0)*(3.0-1.0));
     System.out.println(y);
   }  
  public static void main(String[]args){
     L2(-2.0);
     L2(0.0);      
     L2(2.75);
  }
}