# set terminal pngcairo  background "#ffffff" enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'tics.1.png'
set style data lines
set mxtics
set title "Default tics settings" 
set xlabel "x" 
set xrange [ -15.0000 : 15.0000 ] noreverse nowriteback
set ylabel "y" 
set yrange [ -0.250000 : 1.00000 ] noreverse nowriteback
plot sin(sqrt(x**2))/sqrt(x**2) notitle