| // Copyright John Maddock 2007. |
| // Copyright Paul A. Bristow 2010 |
| // Use, modification and distribution are subject to the |
| // Boost Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| // Note that this file contains quickbook mark-up as well as code |
| // and comments, don't change any of the special comment mark-ups! |
| |
| // Setting precision in a single function call using make_policy. |
| |
| #include <iostream> |
| using std::cout; using std::endl; |
| |
| //[policy_ref_snip10 |
| |
| #include <boost/math/special_functions/gamma.hpp> |
| using boost::math::tgamma; |
| |
| using namespace boost::math::policies; |
| |
| double t = tgamma(12, policy<digits10<5> >()); // Concise make_policy. |
| |
| //] //[/policy_ref_snip10] |
| |
| |
| |
| int main() |
| { |
| cout << "tgamma(12, policy<digits10<5> >()) = "<< t << endl; |
| } |
| |
| /* |
| |
| Output: |
| |
| tgamma(12, policy<digits10<5> >()) = 3.99168e+007 |
| |
| */ |