#!/usr/local/bin/gnuplot -persist
# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'param.4.png'
set dummy t, y
set key bmargin center horizontal Right noreverse enhanced autotitle box lt black linewidth 1.000 dashtype solid
set parametric
set samples 160, 160
set style data lines
set xrange [ -3.00000 : 3.00000 ] noreverse writeback
set x2range [ * : * ] noreverse writeback
set yrange [ -3.00000 : 3.00000 ] noreverse writeback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rrange [ * : * ] noreverse writeback
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
NO_ANIMATION = 1
plot -t,t,cos(t),cos(2*t),2*cos(t),sin(t),-cosh(t),sinh(t)