4862 /www/nrich/html/content/id/4862/ 1 2011-02-01T00:00:01 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><p><a href="https://nrich.maths.org/8045">First Forward Into Logo</a><br></br> <strong>Previous</strong>: <a href="http://nrich.maths.org/public/viewer.php?obj_id=4852&amp;part=INDEX">FF2</a></p> <p> </p> <p> </p> <p>Now that you have seen how easy it is to draw squares triangles, pentagons, hexagon, heptagons etc. let us use these shapes as basic units of a pattern.<br></br> <br></br> Why not repeat what you have already repeated!<br></br> <br></br> Imagine:<br></br> Drawing a square (Say, REPEAT 4 [FD 50 RT 90])<br></br> Now turn 30° left.<br></br> Draw another square.<br></br> Now turn another 30°.<br></br> Draw another square.<br></br> Now turn another 30°.<br></br> Draw another square.<br></br> Now turn another 30° and so on until you get back to where you started.<br></br> <br></br> Now this is really: REPEAT 12 [REPEAT 4 [ FD 50 RT 90] LT 30] (hint: 12 x 30 is 360)</p> <p> </p> <br></br> <table style="" border=""> <tbody> <tr> <td><mdo:image alt="logo1" height="150" src="logo1.gif" width="150"></mdo:image></td> <td><mdo:image alt="logo2" height="147" src="logo2.gif" width="147"></mdo:image></td> <td><mdo:image alt="logo3" height="156" src="logo3.gif" width="156"></mdo:image></td> </tr> </tbody> </table> <br></br> <p>Why not experiment with other turns, other sizes, other shapes.....other...?<br></br> <br></br> You might also want to experiment with changing the colour of your pen:<br></br> <br></br> PENCOLOUR (abbreviation PC). You need to tell this primitive how much<br></br> [Red Green Blue] to mix to make your pencolour.<br></br> <br></br> Try [255 0 0] - and start drawing. Was it what you expected?<br></br> <br></br> N.B. 255 is the largest amount of any colour you can use.<br></br> <br></br> SHOW PC tells you what pencolour you are using.</p> <p> </p> <p><strong>Next</strong>:<a href="http://nrich.maths.org/public/viewer.php?obj_id=4854&amp;part=INDEX"> FF4</a><br></br>  </p> <br></br> <p> </p> <p> </p></mdoxml> 2 3 0 1 1 1 0 More Logo for beginners. Now learn more about the REPEAT command. Information and Communications Technology Logo Using, Applying and Reasoning about Mathematics Practical Activity