{

double z = 2.0;

double w0 = boost::math::lambert_w0(z);

std::cout.setf(std::ios_base::showpoint); // Include any trailing zeros.

std::cout.precision(std::numeric_limits<double>::max_digits10); // Show all possibly significant digits.

// Avoid using max_digfigs10 so as many old compilers can run the most basic lambert_w0 test?

// Require to get max_digits10

// [ run lambert_w_basic_example.cpp : : : [ requires cxx11_numeric_limits ] ]

std::cout << " lambert_w0(" << z << ") = " << w0 << std::endl; // lambert_w0(2.00000) = 0.852606

z = -0.2;

double wm1 = boost::math::lambert_wm1(z);

std::cout << " lambert_wm1(" << z << ") = " << wm1 << std::endl; // lambert_wm1(-0.200000) = -2.54264

return 0;