Squashed 'boost/' content from commit b4feb19f2

git-subtree-dir: boost
git-subtree-split: b4feb19f287ee92d87a9624b5d36b7cf46aeadeb

libs/numeric/odeint/examples/ublas/Jamfile.v2

@@ -0,0 +1,13 @@
+# Copyright 2011 Mario Mulansky
+# Copyright 2012 Karsten Ahnert
+# Distributed under 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)
+
+
+project
+    : requirements 
+      <define>BOOST_ALL_NO_LIB=1
+    ;
+    
+exe lorenz_ublas : lorenz_ublas.cpp ;

libs/numeric/odeint/examples/ublas/lorenz_ublas.cpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2011-2013 Mario Mulansky
+ * Copyright 2012 Karsten Ahnert
+ *
+ * Distributed under 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)
+ */
+
+
+#include <iostream>
+
+#include <boost/numeric/odeint.hpp>
+#include <boost/numeric/ublas/vector.hpp>
+
+typedef boost::numeric::ublas::vector< double > state_type;
+
+void lorenz( const state_type &x , state_type &dxdt , const double t )
+{
+    const double sigma( 10.0 );
+    const double R( 28.0 );
+    const double b( 8.0 / 3.0 );
+    
+    dxdt[0] = sigma * ( x[1] - x[0] );
+    dxdt[1] = R * x[0] - x[1] - x[0] * x[2];
+    dxdt[2] = -b * x[2] + x[0] * x[1];
+}
+
+using namespace boost::numeric::odeint;
+
+//[ublas_main
+int main()
+{
+    state_type x(3);
+    x[0] = 10.0; x[1] = 5.0 ; x[2] = 0.0;
+    typedef runge_kutta_dopri5< state_type > stepper;
+    integrate_const( make_dense_output< stepper >( 1E-6 , 1E-6 ) , lorenz , x ,
+                     0.0 , 10.0 , 0.1 );
+}
+//]