// // This is example code from Chapter 3.4 "Operations and operators" of // "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup // #include "std_lib_facilities.h" //------------------------------------------------------------------------------ // simple program to exercise operators int main() { cout << "please enter a floating-point value: "; double n; cin >> n; cout << "n == " << n << "\nn+1 == " << n+1 << "\nthree times n == " << 3*n << "\ntwice n == " << n+n << "\nn squared == " << n*n << "\nhalf of n == " << n/2 << "\nsquare root of n == " << sqrt(n) << endl; // another name for newline ("end of line") } //------------------------------------------------------------------------------