Program to find the sum and average using array

C      Program to find the sum and average using array
        dimension a(100)
        sum=0.0
        write(*,*)'Enter the no. of data you want to enter:'
        read(*,*) n
        write(*,*)'Now, enter the data:'
        do i=1,n
        read(*,*)a(i)
        sum=sum+a(i)
        end do
        ave=sum/real(n)
        write(*,*)'The sum of the given numbers is',sum
        write(*,*)'The average of the given numbers is',ave
        end

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How to Install CERN ROOT on Ubuntu: A Step-by-Step Guide

If you're involved in scientific research or data analysis, you've likely heard of CERN ROOT. Developed by CERN (the European Organization for Nuclear Research), ROOT is an essential toolkit for high-energy physics data analysis. In this guide, we'll walk you through the process of installing CERN ROOT on your Ubuntu machine. Prerequisites Before we dive into the installation process, make sure you have the following prerequisites in place: A working Ubuntu machine (this guide is tested on Ubuntu 23.04, but it should work on other versions as well). Sudo privileges to install packages. Downloading CERN ROOT Start by downloading the latest version of CERN ROOT from the official website or open your terminal and use the following command to download the source code: wget https://root.cern/download/root_vX.YY.Z.source.tar.gz Replace X.YY.Z with the version number you want to install (e.g., 6.22.08). Installing Dependencies CERN ROOT relies on several libraries and tools. T...

C Program to Add of Two Numbers

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Use of TClonesArray Class

void write { TClonesArray * arr = new TClonesArray ( " TVector3 " ); TClonesArray & ar = * arr ; TFile * file = new TFile ( " file.root " , " recreate " ); TTree * tree = new TTree ( " tcl " , " tcl " ); tree -> Branch ( " array " , & arr ); TRandom2 * rand = new TRandom2 ( 1 ); for ( int i = 0 ; i < 100 ; i ++) { arr -> Clear (); for ( int j = 0 ; j < 1000 ; j ++) { double x = rand -> Rndm (); double y = rand -> Rndm (); double z = rand -> Rndm (); new ( ar [ j ]) TVector3 ( x , y , z ); } tree -> Fill (); } file -> Write (); file -> Close (); } void read () { TFile * file = new TFile ( " file.root " ); TTree * tree = ( TTree *) file -> Get ( " tcl " ); TClonesArray * arr = new ...

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