\input fig4tex
\def\GraphLegend{$y = \sqrt x$}
% 1. Definition of characteristic points
\figinit{mm}
\def\Xmin{0}
\def\Ymin{0}
\def\Xmax{80}
\def\Ymax{60}
\def\Xori{0}
\def\Yori{0}
\figpt0:(\Xori,\Yori)
% 2. Creation of the graphical file
\psbeginfig{}
\def\Xmaxx{\Xmax} % To customize the position
\def\Ymaxx{\Ymax} % of the arrow-heads of the axes.
\psaxes 0(\Xmin, \Xmaxx, \Ymin, \Ymaxx)
\pslineC(
0 0,
1.35593 7.81133,
2.71186 11.04689,
4.06779 13.52962,
5.42372 15.62266,
6.77966 17.46667,
8.13559 19.13378,
9.49152 20.66684,
10.84745 22.09379,
12.20338 23.43400,
13.55932 24.70160,
14.91525 25.90726,
16.27118 27.05925,
17.62711 28.16416,
18.98305 29.22733,
20.33898 30.25316,
21.69491 31.24533,
23.05084 32.20695,
24.40677 33.14068,
25.76271 34.04881,
27.11864 34.93335,
28.47457 35.79603,
29.83050 36.63840,
31.18644 37.46184,
32.54237 38.26756,
33.89830 39.05667,
35.25423 39.83014,
36.61016 40.58888,
37.96610 41.33369,
39.32203 42.06532,
40.67796 42.78444,
42.03389 43.49167,
43.38983 44.18758,
44.74576 44.87270,
46.10169 45.54751,
47.45762 46.21247,
48.81355 46.86800,
50.16949 47.51449,
51.52542 48.15230,
52.88135 48.78176,
54.23728 49.40321,
55.59322 50.01694,
56.94915 50.62323,
58.30508 51.22234,
59.66101 51.81453,
61.01694 52.40002,
62.37288 52.97904,
63.72881 53.55181,
65.08474 54.11851,
66.44067 54.67934,
67.79661 55.23447,
69.15254 55.78408,
70.50847 56.32833,
71.86440 56.86737,
73.22033 57.40135,
74.57627 57.93040,
75.93220 58.45467,
77.28813 58.97428,
78.64406 59.48935,
80.00000 60.00000
)
\psendfig
% 3. Writing text on the figure
\figvisu{\figBoxA}{\GraphLegend}{%
\figptsaxes 1:0(\Xmin, \Xmaxx, \Ymin, \Ymaxx)
% Points 1 and 2 are the end points of the arrows
\figwritee 1:(5pt) \figwriten 2:(5pt)
\figptsaxes 1:0(\Xmin, \Xmax, \Ymin, \Ymax)
% Points 1 and 2 are the first two end points of the axes
\figwrites 1:$3.0$(5pt) \figwritew 2:$1.732$(8pt)
% Points 3 and 4 are the two other end points of the axes
\figpttraC 3:=0/\Xmin,0/ \figwrites 3:$0$(5pt)
\figpttraC 4:=0/0,\Ymin/ \figwritew 4:$0$(8pt)
}
\centerline{\box\figBoxA}
\bye