Présentation de loglog_repere_02.jps

/syracuse/bbgraf/albums/logscale/loglog_repere_02.jpg
400 setwidth -1.2 7.15 setxrange -1.2 7.1 setyrange pictpointsOff /xscale { ln } def /yscale { ln } def .1 1000 setyrange .1 1000 setxrange %% le quadrillage gsave .4 setgray .4 setlinewidth [-1 3 log_seq] dup {svrule} apply {shrule} apply grestore 1 1 setorigine [1 10 100 1000 10000] {xmark} apply [1 10 100 1000 10000] {ymark} apply {} courbe bleu 10 10 9 cercle