set term svg size 800,600 dynamic enhanced

set termoption dashed

set style line 1 lt 1 lc rgb "black" lw 1
set style line 2 lt 2 lc rgb "black" lw 1
set style line 3 lt 3 lc rgb "black" lw 1
set style line 4 lt 4 lc rgb "black" lw 1
set style line 5 lt 5 lc rgb "black" lw 1
set style line 6 lt 1 lc rgb "black" lw 2

ismin(x,y) = (x>y)?y:x
ismax(x,y) = (x>y)?x:y

set xlabel 'Relative Erosive Wind Energy'
set ylabel 'Surface update time interval (seconds)'

tn(enge) = 3600./ismax(1,int(4*(0.5+4.6*enge)))

#set log x
#set log y
set xrange [0:1]
set yrange [0:]
set nokey

# using decimal in numbers to ensure real division, not integer divistion
plot tn(x) ls 1 with lines notitle 

#pause -1