agraph
script=' initPicture(-1,6,-1,6)
axes()
a = [0,0]
b = [5,5]
marker = "dot"
line(a,b)
text(a,"a",belowright)
text(b,"g",above)
text(b,"b",right)
text(b,"b",left)
text(b,"b",below)
text(b,"b",aboveleft)
text(b,"b",aboveright)
text(b,"b",belowleft)
text(b,"b",belowright)
stroke = "red"
path([a,[0,5],b,[5,0]])
stroke = "green"
marker = "none"
curve([a,[.25,0],[.5,.5],[1,1],[1.5,1.5]])
stroke = "blue"
circle([5,0],1)
ellipse([0,5],1,2)
stroke = "purple"
rect([0,0],[2,2],null,.5,1)
marker = "arrowdot"
line(a,[5,0])'>
end agraph
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