#delimit ;
twoway function y=exp(-x/6)*sin(x), range(0 12.57)
  yline(0, lstyle(foreground))
  xlabel(0 3.14 "pi" 6.28 "2 pi" 9.42 "3 pi" 12.57 "4 pi")
  plotregion(style(none))
  xscale(noline)
;
#delimit cr