set table "gnuplot/SAOUDI_HACHE_TP5/5.table"; set format "%.5f"
set samples 100.0; set parametric; plot [t=0:5] [] [] log10(10**t), (t < log10(1./0.001) ? 20*log10(1) : 20*log10(0.1*10.0*1/(0.001))-20*log10(10**t))