# set terminal pngcairo  background "#ffffff" enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'simple.6.png'
set key bmargin center horizontal Right noreverse enhanced autotitles box linetype -1 linewidth 1.000
set samples 400, 400
set title "Simple Plots" 
set title  offset character 0, 0, 0 font ",20" norotate
plot [-5*pi:5*pi] [-5:5] real(tan(x)/atan(x)), 1/x