Using the TLatex class

// This macro draws 4 Latex-style formula in a canvas and prints the canvas
// as a Postscript file.
// Note that this macro relies on a first implementation of the TLatex class.
// There are still some discrepancies between the result on the screen
// and the result on Postscript.
{
   gROOT->Reset();
   TCanvas *c1 = new TCanvas("c1");
   TLatex l;
   l.SetTextAlign(23);
   l.SetTextSize(0.1);
   l.DrawLatex(0.5,0.95,"e^{+}e^{-}#rightarrowZ^{0}#rightarrowI#bar{I}, q#bar{q}");
   l.DrawLatex(0.5,0.75,"|#vec{a}#bullet#vec{b}|=#Sigmaa^{i}_{jk}+b^{bj}_{i}");
   l.DrawLatex(0.5,0.5,"i(#partial_{#mu}#bar{#psi}#gamma^{#mu}+m#bar{#psi}=0#Leftrightarrow(#Box+m^{2})#psi=0");
   l.DrawLatex(0.5,0.3,"L_{em}=eJ^{#mu}_{em}A_{#mu} , J^{#mu}_{em}=#bar{I}#gamma_{#mu}I , M^{j}_{i}=#SigmaA_{#alpha}#tau^{#alphaj}_{i}");
   c1->Print("latex2.ps");
}