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Question: the asterisks  in the legends

Question:the asterisks  in the legends

student_1 305
homework legend plotting duplicate-question pointline
January 10 2021
0

In the following code,  

Although the lines in the figure include asterisk or points, the symbols don't appear in the legends.

 

restart:
f1:=x->x^2:
f2:=x->x^2-0.08:
N:=10: ptsize:=8: th:=1:
(a,b) := 0,2:
p1:=plot(f1(x),x=a..b,color=red,thickness=th,legend=f1(x),style=pointline,symbol=solidcircle,symbolsize=ptsize,adaptive=false,numpoints=N+1):
p2:=plot(f2(x),x=a..b,color=blue,thickness=th,legend=f2(x),style=pointline,symbol=asterisk,symbolsize=ptsize+4,adaptive=false,numpoints=N+1):

plots:-display(p1,p2);

 

 

For example; what is your method for showing asterisk, point etc. in the legends as in the following picture?
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