LOGO Challenge 8

1571 /www/nrich/html/content/02/10/logo1/ 1 2011-02-01T00:00:01 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"> <table style="border-spacing:1px;" border=""> <tbody> <tr> <td> Explore : TO RHOMB :X REPEAT 2 [ FD :X RT 45 FD :X RT 135] END </td> <td> </td> </tr> <tr> <td> TO PAT :X REPEAT 8 [RHOMB :X LT 45] END </td> <td><mdo:image alt="Pattern 1" height="248" src="logo11-02-1.gif" width="250"></mdo:image></td> </tr> <tr> <td>How about exploring overlaying the patterns produced.</td> <td><mdo:image alt="Pattern 2" height="246" src="logo11-02-2.gif" width="256"></mdo:image></td> </tr> <tr> <td>Or 'exploding' the patterns</td> <td><mdo:image alt="Pattern 3" height="212" src="logo11-02-3.gif" width="218"></mdo:image></td> </tr> <tr> <td>Or both!</td> <td><mdo:image alt="Pattern 4" height="234" src="logo11-02-4.gif" width="265"></mdo:image></td> </tr> <tr> <td colspan="2" style="padding:5px;"> The invitation for you is to explore further this infrequently met family of shapes. You might like to start by expanding on the procedures above. </td> </tr> </tbody> </table> </mdoxml> <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0">Try entering: RHOMB 20 RHOMB 30 Then: PAT20 PAT 30 How do you "explode" the shape? Not only do you need to turn a little after you have drawn the rhombus what else should you do? LOGO programs such as MSWLogo allow you to "step through" your commands so you can see what each line of your program is doing - this can be very useful if things keep going wrong and you cannot see why. Youcan change the pencolour by using the SETPENCOLOR command (SETPC) Try: SETPC 3 </mdoxml> 2 3 0 1 1 1 0 LOGO Challenge 8 - Rhombi Explore patterns based on a rhombus. How can you enlarge the pattern - or explode it? Information and Communications Technology Logo 2D Geometry, Shape and Space Angles 2D Geometry, Shape and Space Rhombi