# include & ltmath.h & gt

# include & ltiostream & gt

# include & lt string & gt

Use namespace std

void main()

{

Double a, b, c; //The first parameter in the //pow function prototype must be double or float, so it can only be defined as float or double when it is defined.

a =- 10；

b=pow(a，2)；

c =(int)b % 2； The//%operator cannot have a double type, so it is cast to an int type.

STD::cout & lt； & lt" a = " & lt& lta & lt& ltendl

STD::cout & lt； & lt" b = " & lt& lta & lt& ltendl

STD::cout & lt； & lt" c = " & lt& ltc & lt& ltendl

}

Is that clear?