echo "reset; set term pdfcairo lw 2 font \"Times New Roman, 8\"; set output \"out.pdf\"; set param; set palette gray; set isosamples 200,200; set pm3d interpolate 1000,1000; set zrange [0: 1.5]; set xrange [0:2010]; set yrange[-4:53]; set zlabel '数值解与理论解之差的无穷范数' rotate by 90; set xlabel '节点数'; set ylabel '尾数位数'; ; set title '节点数、尾数位数与数值解的精度' font \"Times New Roman, 10\"; set ztics 0.2; set mztics 0.02; unset key; set xtics 200; set mxtics 10; set ytics 5; set mytics 1; set pm3d at bt; set border 4095 lc 'black'; set pm 3d interpolate 0,0; set cbrange [0:0.2]; set label '此区域数值投影作白色，不可见' at graph 0.01,0.24,0.8 rotate by -9; set label '此区域数值投影作白色，不可见' at graph 0.1,0.04,-0.5 rotate by -9; splot \"1\" with linespoints lt 1 lw 0.2 pt 5 ps 0.05; " | gnuplot -p
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