Legacy tutorials

Legacy Tutorials.

Some of ROOT's tutorials demonstrate interfaces that are not recommended anymore, because ROOT or C++ itself now offer superior ones. These have been moved here "for the record".

Topics
	Containers tutorials
	Examples showing the "containers' classes" usage..
	Multi Layer Perceptron tutorials
	Examples showing the Multi Layer Perceptron classes.
	Regexp tutorials
	Examples for ROOT's regular expressions.
	Thread tutorials
	Thread examples.

Files
file	benchmarks.C
	This macro run several tests and produces an benchmark report.
file	geant3tasks.C
	This script is a representation using TTasks of the Geant3 simulation program This example uses directly TTask objects.
file	htmlex.C
	This file demonstrates how THtml can document sources.
file	MyTasks.cxx
	A set of classes deriving from TTask.
file	ProofNtuple.C
	Selector to fill a simple ntuple.
file	ProofNtuple.h
	Selector to fill a simple ntuple.
file	ProofPythia.C
	Selector to generate Monte Carlo events with Pythia8.
file	ProofPythia.h
	Selector to generate Monte Carlo events with Pythia8.
file	rootalias.C
	Defines aliases:
file	rootenv.C
	Produce a picture of the ROOT environment.
file	rootmarks.C
	Prints a summary of all ROOT benchmarks (must be run before).
file	tasks.C
	Example of TTasks.