read("turtle.txt"):ResetTurtle();EXERCISE: Create an arbitrary sequence of F, B, R, and L, with 8 letters and use it as Turtle Command.myseq:='FFFFFFFFFRF';TurtleCmd(myseq);In order to "glue" sequences of letters together we use the maple comand "cat". EXAMPLEcat('F','RR');Maple has a comand to produce sequencesqq:=seq(x^i,i=2..4);cat(qq);aa:=seq('FLFR',i=1..6);Then we can "glue" the elements of our sequence with the cat command.fig:=cat(aa);TurtleCmd(fig);triang:=proc()
SetTurtleAngle(60):
TurtleCmd(BRFRB):
end proc;SetInitialTurtleHeading(90):
triang();EXERCISE: Draw1. A decagon2. A polygon of n sides3. A circle4. Two polygons of n sides with a common edge.polyg:=proc(n)
SetTurtleAngle(360/n):
TurtleCmd(cat(seq(FL,i=1..n)));
end proc;polyg(20);An interesting picture from the book.SetTurtleAngle(30);TurtleCmd(cat(seq(cat(R,seq(FR,i=1..12)),j=1..12)));With the above intructions, change some of the parameters (angle, number of iterations for i, or j) and try to understand the results.EXERCISE 1. Draw the figures corresponding to the sequences FRSFR and FFRF and compare them. Can you deduce what S does?
2. Draw the figures corresponding to the sequences FRGFR and FRFF and compare them. Can you deduce what G does?ScalingDraw the picture corresponding to the next sequence of letters, execute the command SetTurtleScale(0.8) and draw the picture again. What can you deduce from the results?