Java实现多项式除法的代码示例

import java.text.DecimalFormat;
public class duoxiangshichufa_div {
 static void poly_div(double A[],int m,double B[],int n,double R[],int k,double L[],int l){
 int i,j,mm,ll;
 for(i=0;i<k;i++){
  R[i]=0.0;
 }
 ll=m-1;
 for(i=k;i>0;i--){
  R[i-1]=A[ll]/B[n-1];
  mm=ll;
  for(j=1;j<=n-1;j++){
  A[mm-1]-=R[i-1]*B[n-j-1];
  mm-=1;
  }
  ll-=1;
 }
 for(i=0;i<l;i++){
  L[i]=A[i];
 }
 }
 public static void main(String[] args) {
 int i;
 double A[]={-3.0,6.0,-3.0,4.0,2.0};
 double B[]={-1.0,+1.0,-1.0};
 double R[]=new double[3];
 double L[]=new double[2];
 DecimalFormat df=new DecimalFormat("0.00E000");
 poly_div(A, 5, B, 3, R, 3, L, 2);
 for(i=0;i<=2;i++){
  System.out.println("商多项式的系数R("+i+")="+df.format(R[i]));
 }
 for(i=0;i<=1;i++){
  System.out.println("余多项式的系数R("+i+")="+df.format(L[i]));
 }
 }
}