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pow() 函式 - 計算冪次與開根號

利用pow() 函式, 設計一個可以輕鬆計算冪次與開根號的工具.
參數說明
pow(a,b);
a=底數
b=指數(次方)
return a的b次方

另外補充
sqrt()可計算開根號
sqrt(a)    return a開根號
abs()可計算絕對值
abs(a) return a的絕對值

需有<cmath> 標頭檔


  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.     cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.     cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
複製代碼

  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     float x;
  8.     float y;
  9.     cout<<"enter number and power"<<endl;
  10.     cin>>x>>y;
  11.     cout<<pow(x,y)<<endl;
  12.     system("pause");
  13.     return 0;   
  14. }
複製代碼
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  1. #include<iostream>
  2. #include<cmath>
  3. using namespace std;
  4. int main()
  5. {
  6.     double x, y;
  7.     cout<<"Enter a Base Number: ";
  8.     cin>>x;
  9.     cout<<"Enter an Exponent: ";
  10.     cin>>y;
  11.     cout<<x<<"'s Power of "<<y<<" Is "<<pow(x,y)<<endl;
  12.       
  13. system("pause");
  14. return 0;
  15. }
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.     cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.     cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
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  1. #include<iostream>
  2. #include<cmath>
  3. using namespace std;
  4. int main(){

  5.     float a;
  6.     float b;
  7.     cout<<"請輸入底數: ";
  8.     cin>>a;
  9.     cout<<"請輸入指數: ";
  10.     cin>>b;
  11.     cout<<pow(a,b)<<endl;
  12.     system("pause");
  13.     return 0;
  14. }
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.     cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.     cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
複製代碼

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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.       cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.      cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.      
  14.     system("pause");
  15.     return 0;   
  16. }
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double a,b;
  8.     cout<<"請輸入底數:";
  9.     cin>>a;
  10.     cout<<"請輸入指數:";
  11.     cin>>b;
  12.     cout<<a<<"的"<<b<<"次方,值為"<<pow(a,b)<<endl;
  13.     system("pause");
  14.     return 0;
  15. }
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.     cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.     cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double a,b;
  8.     cout<<"輸入一個底數";
  9.     cin>>a;
  10.     cout<<"輸入一個指數";
  11.     cin>>b;
  12.     cout<<a<<"的"<<b<<"次方="<<pow(a,b)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
複製代碼

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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {
  7.     double x, y;
  8.     cout<<"請輸入底數: ";
  9.     cin>>x;
  10.     cout<<"請輸入指數: ";
  11.     cin>>y;
  12.     cout<<x<<"的"<<y<<"次方,值為"<<pow(x,y)<<endl;
  13.     system("pause");
  14.     return 0;   
  15. }
複製代碼

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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cmath>
  4. using namespace std;
  5. int main()
  6. {   
  7.     double a,b;
  8.     cout<<"請輸入底數"<<endl;
  9.     cin>>a;
  10.     cout<<"請輸入指數"<<endl;
  11.     cin>>b;
  12.     cout<<a<<"的"<<b<<"次方是"<<pow(a,b)<<endl;
  13.     cout<<"開根號"<<a<<"是"<<sqrt(a)<<endl;
  14.     system("pause");
  15.     return 0;
  16. }   
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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<ctime>
  4. #include<cmath>
  5. using namespace std;
  6. int main()
  7. {
  8.         double x,y;
  9.         cout<<"請輸入底數:";
  10.         cin>>x;
  11.     cout<<"請輸入指數:";
  12.     cin>>y;
  13.     cout<<x<<"的"<<y<<"次方為"<<pow(x,y)<<endl;
  14.         system("pause");
  15.     return 0;
  16. }
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