Ketan Maheshwari wrote: > dear philip, > By math expression evaluator i mean the one that you can add as applet > on the desktop pane. > Help is not available for its usage. i am using fedora core linux with kde. Do you want a calculator application that can do numerical integration of a function like a HP hand held calculator? I suggest that you will probably need a scientific plotting program such as GNU-Plot. I don't know what methods it uses or how accurate it is. I thought that there was a KDE front end for GNU-Plot, but I can't find it. All I can find is a Qt front end: http://www.xm1math.net/qgfe/ -- JRT ___________________________________________________ . Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.