Code:#include <iostream> #include <cmath> #include <iomanip> using namespace std; int main() { int N1; char act; int N2; cout << "\t\t|~-~-~-~-~-~-~|\n" "\t\t| Calculator |\n" "\t\t|~-~-~-~-~-~-~|\n"; cout << "\n" "+=Add\t\t\t S=sqrt\n" "-=Subtract\t\t ^=Exponent\n" "*=multiply\t\t COMEING\n" "/=divide\t\t Q=Quit\n\n"; while(act != 'Q') { cin>>N1>>act>>N2; if (act='+') cout<<N1+N2; if (act='-') cout<<N1-N2; if (act='*') cout<<N1*N2; if (act='/') cout<<N1/N2; if (act='s') cout<<sqrt(N1); if (act='^') cout<<pow(N1, N2); } cin.get(); }