My Apache version is 1.3.12 (RedHat/Linux) andPHP version is 4.0.1pl2. bundled with RedHat 7.0How can I do in order to support math function.I have download number4.tar.gz from web but there isn't any docs to teach me how to install.So anyone help me to do this without recompiling Apache and PHP.It is because everytime I upgrade, both new and old will exist and cause error.Also is there any docs teaching how to upgrade Apache and PHP.Thx