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  1. import java.util.Arrays;
  2.  
  3. public class Main
  4. {
  5.     private static double Pivo(double Matriz[], double Resultado){
  6.         if (Matriz[0]==0){}
  7.         else {
  8.             double temp=Matriz[0];
  9.             Resultado/=temp;
  10.             for(int i=0;i<Matriz.length;i++){
  11.                 Matriz[i]/=temp;
  12.             }
  13.         }
  14.  
  15.         return Resultado;
  16.     }
  17.  
  18.     public static void main(String[] args){
  19.         double Coeffs[][]={{4, 2, 20},{2, 3, 5},{5,7,9}};
  20.         double Result[]={4,3,2};
  21.  
  22.         System.out.println("Antes");
  23.         System.out.println(Arrays.toString(Result));
  24.  
  25.         Result[0] = Pivo(Coeffs[0], Result[0]);
  26.  
  27.         System.out.println("Depois");
  28.         System.out.println(Arrays.toString(Result));
  29.     }
  30. }
Success #stdin #stdout 0.04s 2184192KB
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stdin
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Standard input is empty
stdout
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Antes
[4.0, 3.0, 2.0]
Depois
[1.0, 3.0, 2.0]
https://ideone.com/rXEQIq
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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