#include "itbase.h" using std::cout; using std::endl; using namespace itpp; double f(const double x) { return x*log(x); } int main() { cout << "=========================================" << endl; cout << " Test of numerical integration routines" << endl; cout << "=========================================" << endl; double res = quad( f, 1.5, 3.5); double res2 = quadl( f, 1.5, 3.5); cout << "Integration of f(x)=x*log(x) over [1.5,3.5]" << endl; cout << "quad = " << res << endl; cout << "quadl = " << res2 << endl; return 0; }