set table "gnuplot/SAOUDI_HACHE_TP5/3.table"; set format "%.5f"
set samples 100.0; set parametric; plot [t=1:6] [] [] log10(10**t), (t < log10(1./0.001) ? 20*log10(0.01) : 20*log10(0.1*10.0*0.01/(0.001))-20*log10(10**t))+(t<log10(1/(100*0.001))?20*log10(1):+20*log10(1*(100*0.001))+20*log10(10**t))