The document contains code to generate several geometric patterns and shapes using Logo programming commands. It repeats circles, ellipses, and random walks using different pen colors and sizes. It also contains code to draw spirals and nested shapes through repetition and changing parameters like pen color, size, and angle of rotation.

1. SETPENCOLOR[255 0 255]
repeat6[repeat36[ellipse100 200 rt 5] fd 200 repeat36[ellipse 100200 rt 5] purepeat12[ellipse 100
200 rt 5] fd 200 pd]

2. SETPENCOLOR[255 255 0]
REPEAT 3000[PU HOME SETH RANDOM720 FD 60 PD FD RANDOM300]

3. SETPENCOLOR[0 0 255]
repeat100 [circle 50 fd10 rt 10]
SETPENCOLOR[255 0 255]
repeat100 [circle 100 fd 10 rt 10]
SETPENCOLOR[255 0 0]
repeat100 [circle 150 fd 10 rt 10]
SETPENCOLOR[255 255 0]
repeat100 [circle 200 fd 10 rt 10]
SETPENCOLOR[0 255 255]
repeat100 [circle 250 fd 10 rt 10]

4. REPEAT 35[SETPENCOLORINT(REPCOUNT-1)/5FORWARDREPCOUNT*20 RIGHT 144]

5. repeat6[SETPENCOLORINT(REPCOUNT*10) repeat36[ellipse100 200 rt 5] fd 200 repeat36[ellipse 100
200 rt 5] pu repeat12[ellipse 100200 rt 5] fd 200 pd]

6. setpencolor[2550 0]
for[i 100 10 -5] [repeat5[repeat6 [fd:i lt 90] lt144]]

7. repeat90[fd 200 rt 170]
repeat90[fd 200 rt 290]
repeat90[fd 200 rt 130]

8. SETSCREENCOLOR0
setpencolor[255255 255]
bk 210 repeat72[circle 100 pd fd5]
setpencolor[255000 000]
pu home bk190 lt90 fd150 rt 90 pd repeat72[circle 100 pdfd 5]
setpencolor[255242 000]
pu home bk210 lt90 fd250 rt 90 pd repeat72[circle 100 pdfd 5]
setpencolor[000255 000]
pu home bk 190 lt90 fd350 rt 90 pd repeat72[circle 100 pdfd 5]
setpencolor[000000 255]
pu home bk210 rt 90 fd 150 lt90 pd repeat72[circle 100 pdfd 5]
setpencolor[255128 64]
pu home bk190 rt 90 fd 250 lt90 pd repeat72[circle 100 pdfd 5]
setpencolor[25456 239]
pu home bk210 rt 90 fd 350 lt90 pd repeat72[circle 100 pdfd 5]