pow function - float and int

pow returns double. So if you try to store its return value in int , you may get some problem.
 eg. consider the following
int a,b,c;
float d;

now if you try :
a = pow(10,2);
then a = 99
but if you try
d= pow (10,2); or try out cout<<pow(10,2)
you will get 100.

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