Why is my power operator not working

Question

include  lt stdio h gt   void main void        int a      int result      int sum   0      printf  Enter a number          scanf   d    amp a       for  int i   1  i  lt   4  i                   result   a   i           sum    result            printf   d n   sum       Why is   not working as the power operator

User · Answer

In C   is the bitwise XOR   0101   1100   1001    in binary   There s no operator for power  you ll need to use pow function from math h  or some other similar function    result   pow  a  i

User · Answer

include math h and compile with gcc test c -lm

User · Answer

pow   doesn t work with int  hence the error  error C2668  pow   ambiguous call to overloaded function   http   www cplusplus com reference clibrary cmath pow   Write your own power function for ints   int power int base  int exp        int result   1      while exp    result    base  exp--        return result

User · Answer

There is no way to use the    Bitwise XOR  operator to calculate the power of a number  Therefore  in order to calculate the power of a number we have two options  either we use a while loop or the pow   function  1  Using a while loop   include  lt stdio h gt   int main          int base  expo      long long result   1       printf  quot Enter a base no    quot        scanf  quot  d quot    amp base        printf  quot Enter an exponent   quot        scanf  quot  d quot    amp expo        while  expo    0            result    base          --expo             printf  quot Answer    lld quot   result       return 0                       2  Using the pow   function  include  lt math h gt   include  lt stdio h gt   int main          double base  exp  result       printf  quot Enter a base number   quot        scanf  quot  lf quot    amp base        printf  quot Enter an exponent   quot        scanf  quot  lf quot    amp exp           calculate the power of our input numbers     result   pow base  exp        printf  quot   1lf   1lf     2lf quot   base  exp  result        return 0

User · Answer

Instead of using    use  pow  function which is a predefined function which performs the Power operation and it can be used by including math h header file     This symbol performs BIT-WISE XOR operation in C  C     Replace a i with pow a i

User · Answer

You actually have to use pow number  power    Unfortunately  carats don t work as a power sign in C  Many times  if you find yourself not being able to do something from another language  its because there is a diffetent function that does it for you

User · Answer

Well  first off  the   operator in C C   is the bit-wise XOR  It has nothing to do with powers   Now  regarding your problem with using the pow   function  some googling shows that casting one of the arguments to double helps   result    int  pow  double  a i     Note that I also cast the result to int as all pow   overloads return double  not int  I don t have a MS compiler available so I couldn t check the code above  though   Since C99  there are also float and long double functions called powf and powl respectively  if that is of any help

User · Answer

First of all   is a Bitwise XOR operator not power operator   You can use other things to find power of any number  You can use for loop to find power of any number    Here is a program to find x y i e  xy  double i  x  y  pow   x   2  y   5   pow   1  for i 1  i lt  y  i          pow   pow   x     printf  2 5    lf   pow     You can also simply use pow   function to find power of any number  double power  x  y  x   2  y   5  power   pow x  y      include math h header file     printf  2 5    lf   power

[c++] Why is my power operator (^) not working?

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