Overview →Harinder Singh

CSU Fresno

IntroductionAllows c++ code to run without having to

compile it

Installation➢ http://root.cern.ch/drupal/content/build-prerequisites

➢ http://root.cern.ch/drupal/content/installing-root-source

sudo aptitude install gcc g++ make binutils \ libx11-dev libxpm-dev libxft-dev libxext-devOPTIONAL DEPENDENCIES: (I've this installed)sudo aptitude install cmake \ gsl-bin libgsl0-dev \ liblzma2 liblzma-dev \ libgmp3c2 libgmp3-dev \ libpcre3 libpcre3-dev \ zlib1g zlib1g-dev

HOW TO INSTALL:

wget ftp://root.cern.ch/root/root_v5.34.00.source.tar.gztar -xzvp root_v5.34.00.source.tar.gzcd rootWHERE_TO_INSTALL_ROOT=/usr/local ## feel free to change this## feel free to change this./configure linux \ --with-x11-libdir=/usr/lib/i386-linux-gnu \ --with-xft-libdir=/usr/lib/i386-linux-gnu \ --with-xext-libdir=/usr/lib/i386-linux-gnu \ --with-xrootd-opts=--syslibs=/usr/lib/i386-linux-gnu \ --prefix=$WHERE_TO_INSTALL_ROOTmake# sudo make install ## sudo needed at least for for /etc/root# NEVER use make install in modern distros. Instead use:sudo checkinstall make installsudo cd $WHERE_TO_INSTALL_ROOTsource bin/thisroot.shroot ## :-) works ??

Example here : Ubuntu installation

Root Interactive session

Object Oriented

Framework organisation

User interfaces

Displaying a histogram

Basic navigation by clicking

Reading the root file and the tree

http://root.cern.ch/root/html/TH1F.html

Objects (MakeClass)

Fitting multiple Sub Ranges

More examples in Next sessionMore examples in Next session