why is this happening?
including all necessary header files ,math.h and stdio.h ,
int main()
{

int i=2;
int y=pow(10,i);
printf("%d",y);
return 0;
}


this program prints 99.
can u help;
thank u.

red_cartoon

a text book example of 'loss of precision due to conversion from floating type to integer type'

pow( x, y) returns a double. When you try to put that inside an int, you experience a roundoff error.

asterisk_man

pow is defined as:
double pow(double x, double y);
so the two integers you supply, 10 and i, are cast into doubles, the function is evaluated and a double is returned. When that double is then cast into an int so that it can be stored in y some precision is lost due to the way that floating point numbers are represented.

hope this helps.

anuragplanet

i dont know what the problem is coz my compiler isnt showing any problem and printing 100 as the answer
may b your math.h has been tampered
if u get any more such problems, try loading turbo c again and then use it