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Oct 18th, 2021
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  1. //2.1
  2. /*#include <iostream>
  3. #define _USE_MATH_DEFINES
  4. #include <math.h>
  5. using namespace std;
  6. double V,R,r,h,S,l;
  7. int main()
  8. {
  9. cout<<"Enter nums"<<endl;
  10. cin>>r>>R>>h;
  11. if (h >0 and R>0 and r>0){
  12. l=sqrt((h*h+pow((R-r),2)));
  13. V = (M_PI * h * (pow(R, 2) + R * r + pow(r, 2)) / 3);
  14. S = M_PI * (pow(R, 2) + (R + r) * l + pow(r, 2));
  15. cout << S << " " << V;
  16. }
  17. else{
  18. cout<<"Введите числа больше нуля";
  19. }
  20. return 0;
  21. }*/
  22. //2.2
  23. /*#include <iostream>
  24. #define _USE_MATH_DEFINES
  25. #include <math.h>
  26. using namespace std;
  27. float w,a,x;
  28.  
  29. int main()
  30. {
  31. cout<<"Enter nums"<<endl;
  32. cin >> x>>a;
  33. if (x==0){
  34. cout<<"Error"<<endl;
  35. }
  36. else {
  37. if (abs(x) < 1) {
  38. w = a * log(abs(x));
  39. cout << abs(w);
  40. }
  41. else {
  42. if (a - pow(x, 2) < 0) {
  43. cout << "error\n";
  44. }
  45. else {
  46. w = sqrt(a - pow(x, 2));
  47. cout << abs(w);
  48. }
  49. }
  50. }
  51. return 0;
  52. }*/
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