pow() 函式 - 計算冪次與開根號

鄭繼威

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. }

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朱奕祈

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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黃品禎

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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呂宗晉

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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邱品惟

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. }

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呂得銓

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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鄭繼威

7

蔡沛倢

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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盧玄皓

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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李柏漢

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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黃子豪

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

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廖秝瑜

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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何權晉

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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張絜晰

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. }
    

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