Home » Archimedes archive » Acorn User » AU 1994-08.adf » !Education_Education » Control/!Control/Dir/Logo/Answers1
Control/!Control/Dir/Logo/Answers1
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1994-08.adf » !Education_Education |
| Filename: | Control/!Control/Dir/Logo/Answers1 |
| Read OK: | ✔ |
| File size: | 04ED bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
The language used in Logo programs varies significantly, not only in the commands, but in the distance the numbers represent. However, the answers given here should work with most versions of Logo with a minimum of alteration. The construction for REPEAT varies, and so two versions are given. The solution are given as direct instructions ie no attempt is made to create a procedure as this process varies greatly between different versions of Logo. Each solution assumes the turtle is facing North ie towards the top of the screen. 1. Square FORWARD 100 RIGHT 90 FORWARD 100 RIGHT 90 FORWARD 100 RIGHT 90 FORWARD 100 RIGHT 90 or REPEAT 4 FORWARD 100 RIGHT 90 END or REPEAT 4 [FORWARD 100 RIGHT 90] 2. Square turned through 45� LEFT 45 REPEAT 4 FORWARD 100 RIGHT 90 END RIGHT 45 or LEFT 45 REPEAT 4 [FORWARD 100 RIGHT 90] RIGHT 45 3. Circle REPEAT 360 FORWARD 1 RIGHT 1 END or REPEAT 360 [FORWARD 1 RIGHT 1] 4.Rectangle REPEAT 2 FORWARD 50 RIGHT 90 FORWARD 100 RIGHT 90 END or REPEAT 2 [FORWARD 50 RIGHT 90 FORWARD 100 RIGHT 90] 5.Hexagon REPEAT 6 FORWARD 70 RIGHT 60 END or REPEAT 6 [FORWARD 70 RIGHT 60] 6. Polygon (n=number of sides) REPEAT n FORWARD 50 RIGHT 360/n END or REPEAT n [FORWARD 50 RIGHT 360/n]
00000000 54 68 65 20 6c 61 6e 67 75 61 67 65 20 75 73 65 |The language use| 00000010 64 20 69 6e 20 4c 6f 67 6f 20 70 72 6f 67 72 61 |d in Logo progra| 00000020 6d 73 20 76 61 72 69 65 73 20 73 69 67 6e 69 66 |ms varies signif| 00000030 69 63 61 6e 74 6c 79 2c 20 6e 6f 74 20 6f 6e 6c |icantly, not onl| 00000040 79 20 69 6e 20 74 68 65 20 63 6f 6d 6d 61 6e 64 |y in the command| 00000050 73 2c 20 62 75 74 20 69 6e 20 74 68 65 20 64 69 |s, but in the di| 00000060 73 74 61 6e 63 65 20 74 68 65 20 6e 75 6d 62 65 |stance the numbe| 00000070 72 73 20 72 65 70 72 65 73 65 6e 74 2e 20 48 6f |rs represent. Ho| 00000080 77 65 76 65 72 2c 20 74 68 65 20 61 6e 73 77 65 |wever, the answe| 00000090 72 73 20 67 69 76 65 6e 20 68 65 72 65 20 73 68 |rs given here sh| 000000a0 6f 75 6c 64 20 77 6f 72 6b 20 77 69 74 68 20 6d |ould work with m| 000000b0 6f 73 74 20 76 65 72 73 69 6f 6e 73 20 6f 66 20 |ost versions of | 000000c0 4c 6f 67 6f 20 77 69 74 68 20 61 20 6d 69 6e 69 |Logo with a mini| 000000d0 6d 75 6d 20 6f 66 20 61 6c 74 65 72 61 74 69 6f |mum of alteratio| 000000e0 6e 2e 20 0a 0a 54 68 65 20 63 6f 6e 73 74 72 75 |n. ..The constru| 000000f0 63 74 69 6f 6e 20 66 6f 72 20 52 45 50 45 41 54 |ction for REPEAT| 00000100 20 76 61 72 69 65 73 2c 20 61 6e 64 20 73 6f 20 | varies, and so | 00000110 74 77 6f 20 76 65 72 73 69 6f 6e 73 20 61 72 65 |two versions are| 00000120 20 67 69 76 65 6e 2e 20 0a 0a 54 68 65 20 73 6f | given. ..The so| 00000130 6c 75 74 69 6f 6e 20 61 72 65 20 67 69 76 65 6e |lution are given| 00000140 20 61 73 20 64 69 72 65 63 74 20 69 6e 73 74 72 | as direct instr| 00000150 75 63 74 69 6f 6e 73 20 69 65 20 6e 6f 20 61 74 |uctions ie no at| 00000160 74 65 6d 70 74 20 69 73 20 6d 61 64 65 20 74 6f |tempt is made to| 00000170 20 63 72 65 61 74 65 20 61 20 70 72 6f 63 65 64 | create a proced| 00000180 75 72 65 20 61 73 20 74 68 69 73 20 70 72 6f 63 |ure as this proc| 00000190 65 73 73 20 76 61 72 69 65 73 20 67 72 65 61 74 |ess varies great| 000001a0 6c 79 20 62 65 74 77 65 65 6e 20 64 69 66 66 65 |ly between diffe| 000001b0 72 65 6e 74 20 76 65 72 73 69 6f 6e 73 20 6f 66 |rent versions of| 000001c0 20 4c 6f 67 6f 2e 20 45 61 63 68 20 73 6f 6c 75 | Logo. Each solu| 000001d0 74 69 6f 6e 20 61 73 73 75 6d 65 73 20 74 68 65 |tion assumes the| 000001e0 20 74 75 72 74 6c 65 20 69 73 20 66 61 63 69 6e | turtle is facin| 000001f0 67 20 4e 6f 72 74 68 20 69 65 20 74 6f 77 61 72 |g North ie towar| 00000200 64 73 20 74 68 65 20 74 6f 70 20 6f 66 20 74 68 |ds the top of th| 00000210 65 20 73 63 72 65 65 6e 2e 0a 0a 31 2e 20 53 71 |e screen...1. Sq| 00000220 75 61 72 65 0a 46 4f 52 57 41 52 44 20 31 30 30 |uare.FORWARD 100| 00000230 0a 52 49 47 48 54 20 39 30 0a 46 4f 52 57 41 52 |.RIGHT 90.FORWAR| 00000240 44 20 31 30 30 0a 52 49 47 48 54 20 39 30 0a 46 |D 100.RIGHT 90.F| 00000250 4f 52 57 41 52 44 20 31 30 30 0a 52 49 47 48 54 |ORWARD 100.RIGHT| 00000260 20 39 30 0a 46 4f 52 57 41 52 44 20 31 30 30 0a | 90.FORWARD 100.| 00000270 52 49 47 48 54 20 39 30 0a 0a 6f 72 0a 0a 52 45 |RIGHT 90..or..RE| 00000280 50 45 41 54 20 34 0a 20 46 4f 52 57 41 52 44 20 |PEAT 4. FORWARD | 00000290 31 30 30 0a 20 52 49 47 48 54 20 39 30 0a 45 4e |100. RIGHT 90.EN| 000002a0 44 0a 0a 6f 72 0a 0a 52 45 50 45 41 54 20 34 20 |D..or..REPEAT 4 | 000002b0 5b 46 4f 52 57 41 52 44 20 31 30 30 20 52 49 47 |[FORWARD 100 RIG| 000002c0 48 54 20 39 30 5d 0a 0a 32 2e 20 53 71 75 61 72 |HT 90]..2. Squar| 000002d0 65 20 74 75 72 6e 65 64 20 74 68 72 6f 75 67 68 |e turned through| 000002e0 20 34 35 b0 0a 0a 4c 45 46 54 20 34 35 0a 52 45 | 45...LEFT 45.RE| 000002f0 50 45 41 54 20 34 0a 20 46 4f 52 57 41 52 44 20 |PEAT 4. FORWARD | 00000300 31 30 30 0a 20 52 49 47 48 54 20 39 30 0a 45 4e |100. RIGHT 90.EN| 00000310 44 0a 52 49 47 48 54 20 34 35 0a 0a 6f 72 0a 0a |D.RIGHT 45..or..| 00000320 4c 45 46 54 20 34 35 0a 52 45 50 45 41 54 20 34 |LEFT 45.REPEAT 4| 00000330 20 5b 46 4f 52 57 41 52 44 20 31 30 30 20 52 49 | [FORWARD 100 RI| 00000340 47 48 54 20 39 30 5d 0a 52 49 47 48 54 20 34 35 |GHT 90].RIGHT 45| 00000350 0a 0a 0a 33 2e 20 43 69 72 63 6c 65 0a 0a 52 45 |...3. Circle..RE| 00000360 50 45 41 54 20 33 36 30 0a 20 46 4f 52 57 41 52 |PEAT 360. FORWAR| 00000370 44 20 31 0a 20 52 49 47 48 54 20 31 0a 45 4e 44 |D 1. RIGHT 1.END| 00000380 0a 0a 6f 72 0a 0a 52 45 50 45 41 54 20 33 36 30 |..or..REPEAT 360| 00000390 20 5b 46 4f 52 57 41 52 44 20 31 20 52 49 47 48 | [FORWARD 1 RIGH| 000003a0 54 20 31 5d 0a 0a 0a 34 2e 52 65 63 74 61 6e 67 |T 1]...4.Rectang| 000003b0 6c 65 0a 0a 52 45 50 45 41 54 20 32 0a 20 46 4f |le..REPEAT 2. FO| 000003c0 52 57 41 52 44 20 35 30 0a 20 52 49 47 48 54 20 |RWARD 50. RIGHT | 000003d0 39 30 0a 20 46 4f 52 57 41 52 44 20 31 30 30 0a |90. FORWARD 100.| 000003e0 20 52 49 47 48 54 20 39 30 0a 45 4e 44 0a 0a 6f | RIGHT 90.END..o| 000003f0 72 0a 0a 52 45 50 45 41 54 20 32 20 5b 46 4f 52 |r..REPEAT 2 [FOR| 00000400 57 41 52 44 20 35 30 20 52 49 47 48 54 20 39 30 |WARD 50 RIGHT 90| 00000410 20 46 4f 52 57 41 52 44 20 31 30 30 20 52 49 47 | FORWARD 100 RIG| 00000420 48 54 20 39 30 5d 0a 0a 0a 35 2e 48 65 78 61 67 |HT 90]...5.Hexag| 00000430 6f 6e 0a 0a 52 45 50 45 41 54 20 36 0a 20 46 4f |on..REPEAT 6. FO| 00000440 52 57 41 52 44 20 37 30 0a 20 52 49 47 48 54 20 |RWARD 70. RIGHT | 00000450 36 30 0a 45 4e 44 0a 0a 6f 72 0a 0a 52 45 50 45 |60.END..or..REPE| 00000460 41 54 20 36 20 5b 46 4f 52 57 41 52 44 20 37 30 |AT 6 [FORWARD 70| 00000470 20 52 49 47 48 54 20 36 30 5d 0a 0a 0a 36 2e 20 | RIGHT 60]...6. | 00000480 50 6f 6c 79 67 6f 6e 20 28 6e 3d 6e 75 6d 62 65 |Polygon (n=numbe| 00000490 72 20 6f 66 20 73 69 64 65 73 29 0a 0a 52 45 50 |r of sides)..REP| 000004a0 45 41 54 20 6e 20 0a 20 46 4f 52 57 41 52 44 20 |EAT n . FORWARD | 000004b0 35 30 0a 20 52 49 47 48 54 20 33 36 30 2f 6e 0a |50. RIGHT 360/n.| 000004c0 45 4e 44 0a 0a 6f 72 0a 0a 52 45 50 45 41 54 20 |END..or..REPEAT | 000004d0 6e 20 5b 46 4f 52 57 41 52 44 20 35 30 20 52 49 |n [FORWARD 50 RI| 000004e0 47 48 54 20 33 36 30 2f 6e 5d 0a 0a 0a |GHT 360/n]...| 000004ed
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