hi all, please, I'm looking for some directions for installing the math toolkit: 1) downloaded math toolkit headers: http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename... 2) As per instructions in http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename... i.e. Extract to a directory separate from your boost tree, then set the environment variable BOOST_ROOT to point to a copy of boost-1.34 (release branch cvs) or to 1.35 (cvs HEAD). I now have in my directory structure: /usr/local/boost_1_34_1 /usr/local/boost/math and in ./bashrc I added export BOOST_ROOT="/usr/local/boost_1_34_1" 3) I have added "/usr/local/boost/math" in the include path of the compiler (I use eclipse cdt) 4) in main.cpp: #include <boost/math/fpclassify.hpp>//warning: boost/math/fpclassify.hpp: No such file or directory int main() { using namespace boost::math; /*...*/ return 0; }