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  1. #include <cstdlib>
  2. #include <iostream>
  3.  #include <cmath>
  4. using namespace std;
  5.  
  6. struct Vect {
  7. double x,y;
  8. };
  9.  void  print(Vect c);
  10. int main(){
  11. 	Vect a,b,c;//объявим переменные типа Vect
  12.  
  13. 	c.x=(a.x+b.x);
  14. 	c.y=(a.y+b.y);
  15. 	cout<<"введем координаты первого вектора"<<endl;
  16. 	cin>>a.x;
  17. 	cin>>a.y;
  18.  
  19.  
  20. 	cout<<" a= "<< sqrt(a.x*a.x+a.y*a.y)<<endl;
  21. 	cout<<"введем координаты второго вектора"<<endl;
  22. 	cin>>b.x;
  23. 	cin>>b.y;
  24. 	cout<<"|b|= "<< sqrt(b.x*b.x+b.y*b.y)<<endl;
  25. cout<<"|a+b|= "<<sqrt((a.x+b.x)*(a.x+b.x)+(a.y+b.y)*(a.y+b.y))<<endl;
  26.  
  27. cout<<"|a-b|= "<<sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y))<<endl;
  28. cout<<"|a*3| "<< sqrt((a.x*3)*(a.x*3)+(a.y*3)*(a.y*3))<<endl;
  29. cout<<"c("<<c.x<<","<<c.y<<")";
  30. 	return 0;
  31. }
  32.  
Success #stdin #stdout 0s 3300KB
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stdin
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Standard input is empty
stdout
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введем координаты первого вектора
 a= 0.0573074
введем координаты второго вектора
|b|= 7.57816e-42
|a+b|= 0.0573074
|a-b|= 0.0573074
|a*3| 0.171922
c(-0.0573074,-1.02318e-41)
https://ideone.com/uhlyPH
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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