# set terminal svg size 600,400 dynamic enhanced fname 'arial'  fsize 10 mousing name "simple_4" butt solid 
# set output 'simple.4.svg'
set key inside left top vertical Right noreverse enhanced autotitles box linetype -1 linewidth 1.000
set samples 200, 200
plot [-30:20] besj0(x)*0.12e1 with impulses, (x**besj0(x))-2.5 with points