How does the function pow work?

Question

After compiling the following program I get the output \"2346\" but was expecting \"2345\".

#include
#include
int nr_cif(int a)
{         


        

Answer 1

I'm not amazing or great at math but this seems to work: http://ideone.com/dFsODB

#include 
#include 

float mypow(float value, int pow)
{
    float temp = value;
    for (int i = 0; i < pow - 1; ++i)
        temp *= value;

    for (int i = 0; i > pow - 1; --i)
        temp /= value;

    return temp;
}


int main() 
{
    std::cout<