gnuplot基本绘图-绘制坐标轴、刻度、图例、文本、箭头、线段等

set size square set xrange[-1:1] set yrange[0:1] set key at -0.4, 0.96 set xlabel 'x' set ylabel 'y' set xtics 0.5  set ytics 0.5 set mxtics 4 set mytics 4 set label "x^2" at 0.5,0.5 set arrow from -0

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