chazhi41.java.bak

来自「数值分析之计算方法与实验4：插值法 by java」· BAK 代码 · 共 18 行

import java.io.*;
class Chazhi41{
  static void L2(double x)throws IOException{
  	 
     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));
     out.println(y);
    
   }  
  public static void main(String[]args)throws IOException{
     PrintWriter out = new PrintWriter(new FileWriter("result.txt"));
     L2(-2.0);
     L2(0.0);      
     L2(2.75);
     out.close();
  }
}