215:
31:
452:
678:
305:
1994 "Alphamagic
Squares", In: The Lighter Side of Mathematics pp 305–39, Edited by R.K. Guy and R.E. Woodrow, pub. by The Mathematical Association of America, 1994,
622:
607:
436:
226:
to divide any triangle into three smaller triangles, all congruent with one another. Repeating the process on each triangle yields triangles
160:
In "The lost theorem" published in 1997 he showed that every 3 × 3 magic square is associated with a unique parallelogram on the
586:
722:
399:
712:
394:
1987 "In Quest of a
Pangram", In: A Computer Science Reader, pp 200–20, Edited by EA Weiss, Springer-Verlag, New York,
717:
467:
310:
289:
2012 "Geometric Magic
Squares: A Challenging New Twist Using Colored Shapes Instead of Numbers", Dover Publications,
238:
Lee
Sallows is the only son of Florence Eliza Fletcher and Leonard Gandy Sallows. He was born on 30 April 1944 at
319:
294:
732:
154:
258:, but failed to settle in and was without diplomas when he left at age 17. Knowledge gained via interest in
404:
1986 "Co-Descriptive
Strings", (Lee Sallows & Victor L Eijkhout), Mathematical Gazette 1986; 70: 1–10
255:
251:
164:, a discovery that had escaped all previous researchers from ancient times down to the present day.
433:
157:
who has said that he believes that "an even deeper structure may lie hidden beyond geomagic squares"
126:
85:
118:
102:
505:
391:
1990 "A Curious New Result in
Switching Theory", The Mathematical Intelligencer 1990; 12: 21–32.
742:
727:
77:
262:
enabled him to find work as a technician within the electronics industry. In 1970 he moved to
227:
485:
737:
665:
363:
199:
81:
8:
660:
646:
192:
642:
568:
380:
348:
336:
267:
117:(born April 30, 1944) is a British electronics engineer known for his contributions to
601:
395:
340:
306:
290:
223:
146:
73:
634:
560:
517:
372:
328:
286:
2012 Sallows, Lee. "On Self-Tiling Tile Sets", Mathematics
Magazine, December, 2012
283:
2014 Sallows, Lee "More On Self-tiling Tile Sets", Mathematics
Magazine, April 2014
259:
440:
421:
150:
130:
302:
1995 "The
Impossible Problem", The Mathematical Intelligencer 1995 17; 1: 27–33.
540:
536:
354:
350:
638:
706:
491:
266:
in the
Netherlands, where until 2009, he worked as an electronic engineer at
247:
243:
222:
In 2014 Sallows discovered a previously unnoticed result, a way of using the
161:
142:
544:
473:
358:
299:
1997 "The Lost Theorem", The Mathematical Intelligencer 1997 19; 4: 51–54.
271:
239:
214:
184:
176:
572:
521:
384:
332:
183:
lengths. Golygons were invented and named by Sallows and introduced by
203:
564:
548:
376:
263:
180:
172:
168:
122:
69:
30:
695:
153:. The latter invention caught the attention of mathematician
270:. In 1975 Sallows met his partner Evert Lamfers, a Dutch
317:
Sallows, Lee (1992). "New pathways in serial isogons".
145:
and has invented several variations on them, including
534:
487:Ancient puzzle gets new lease of 'geomagical' life
704:
606:: CS1 maint: bot: original URL status unknown (
589:. Archived from the original on October 27, 2009
179:, such that adjacent sides exhibit consecutive
121:. He is particularly noted as the inventor of
218:Visual proof of Lee Sallows's triangle theorem
469:Magic squares are given a whole new dimension
316:
136:
246:, England, and grew up in the district of
669:, Vol. 87, No. 5 (December 2014), p. 381
361:(1991). "Serial isogons of 90 degrees".
213:
16:British electronics engineer (born 1944)
620:
503:
705:
679:Farewell to cardiologist Evert Lamfers
528:
250:in northeast London. Sallows attended
230:to the original but a ninth the area.
141:Sallows is an expert on the theory of
274:, with whom he has lived ever since.
209:
198:In 2012 Sallows invented and named
13:
14:
754:
687:
191:column of the July 1990 issue of
233:
29:
672:
653:
277:
614:
579:
549:"Serial Isogons of 90 Degrees"
510:The Mathematical Intelligencer
497:
479:
461:
446:
427:
415:
320:The Mathematical Intelligencer
1:
408:
723:Combinatorial game theorists
7:
713:Recreational mathematicians
10:
759:
623:"On Self-Tiling Tile Sets"
127:self-enumerating sentences
115:Lee Cecil Fletcher Sallows
86:Self-enumerating sentences
647:10.4169/math.mag.85.5.323
639:10.4169/math.mag.85.5.323
443:, Encyclopedia of Science
202:—a new generalization of
108:
98:
91:
65:
57:
37:
28:
21:
718:Mathematics popularizers
422:Magic Square Update-2009
252:Dame Alice Owen's School
137:Recreational mathematics
119:recreational mathematics
103:Recreational mathematics
78:Geometric magic squares
219:
621:Sallows, Lee (2012).
504:Sallows, Lee (1997).
217:
200:self-tiling tile sets
82:Self-tiling tile sets
52:Welwyn, Hertfordshire
733:People from Nijmegen
666:Mathematics Magazine
627:Mathematics Magazine
587:"What is a Golygon?"
553:Mathematics Magazine
364:Mathematics Magazine
256:The Angel, Islington
189:Computer Recreations
424:, September 6, 2009
193:Scientific American
661:A Triangle Theorem
522:10.1007/BF03024415
506:"The lost theorem"
494:, January 24, 2011
439:2017-10-10 at the
333:10.1007/BF03025216
268:Radboud University
254:, then located at
220:
147:alphamagic squares
74:Alphamagic squares
457:by Martin Gardner
434:alphamagic square
400:978-1-4612-6458-3
112:
111:
93:Scientific career
750:
699:
698:
696:Official website
681:
676:
670:
657:
651:
650:
618:
612:
611:
605:
597:
595:
594:
583:
577:
576:
532:
526:
525:
501:
495:
483:
477:
465:
459:
450:
444:
431:
425:
419:
388:
344:
260:short-wave radio
210:Triangle theorem
175:containing only
151:geomagic squares
131:geomagic squares
48:
46:
33:
19:
18:
758:
757:
753:
752:
751:
749:
748:
747:
703:
702:
694:
693:
690:
685:
684:
677:
673:
659:Sallows, Lee, "
658:
654:
619:
615:
599:
598:
592:
590:
585:
584:
580:
565:10.2307/2690648
541:Guy, Richard K.
537:Gardner, Martin
533:
529:
502:
498:
484:
480:
476:, April 3, 2011
466:
462:
451:
447:
441:Wayback Machine
432:
428:
420:
416:
411:
377:10.2307/2690648
355:Guy, Richard K.
351:Gardner, Martin
280:
236:
212:
139:
84:
80:
76:
72:
53:
50:
44:
42:
24:
17:
12:
11:
5:
756:
746:
745:
740:
735:
730:
725:
720:
715:
701:
700:
689:
688:External links
686:
683:
682:
671:
652:
633:(5): 323–333.
613:
578:
559:(5): 315–324.
535:Sallows, Lee;
527:
496:
478:
460:
445:
426:
413:
412:
410:
407:
406:
405:
402:
392:
389:
371:(5): 315–324.
349:Sallows, Lee;
345:
313:
303:
300:
297:
287:
284:
279:
276:
235:
232:
211:
208:
138:
135:
110:
109:
106:
105:
100:
96:
95:
89:
88:
67:
66:Known for
63:
62:
59:
55:
54:
51:
41:April 30, 1944
39:
35:
34:
26:
25:
22:
15:
9:
6:
4:
3:
2:
755:
744:
743:Living people
741:
739:
736:
734:
731:
729:
728:Magic squares
726:
724:
721:
719:
716:
714:
711:
710:
708:
697:
692:
691:
680:
675:
668:
667:
662:
656:
648:
644:
640:
636:
632:
628:
624:
617:
609:
603:
588:
582:
574:
570:
566:
562:
558:
554:
550:
546:
545:Knuth, Donald
542:
538:
531:
523:
519:
515:
511:
507:
500:
493:
492:New Scientist
489:
488:
482:
475:
471:
470:
464:
458:
456:
453:excerpt from
449:
442:
438:
435:
430:
423:
418:
414:
403:
401:
397:
393:
390:
386:
382:
378:
374:
370:
366:
365:
360:
359:Knuth, Donald
356:
352:
346:
342:
338:
334:
330:
326:
322:
321:
314:
312:
311:0-88385-516-X
308:
304:
301:
298:
296:
292:
288:
285:
282:
281:
275:
273:
269:
265:
261:
257:
253:
249:
248:Upper Clapton
245:
244:Hertfordshire
241:
234:Personal life
231:
229:
225:
216:
207:
205:
201:
196:
194:
190:
186:
182:
178:
174:
170:
165:
163:
162:complex plane
158:
156:
155:Peter Cameron
152:
148:
144:
143:magic squares
134:
132:
128:
124:
120:
116:
107:
104:
101:
97:
94:
90:
87:
83:
79:
75:
71:
68:
64:
60:
56:
49:(age 80)
40:
36:
32:
27:
20:
674:
664:
655:
630:
626:
616:
591:. Retrieved
581:
556:
552:
530:
516:(4): 51–54.
513:
509:
499:
486:
481:
474:The Observer
468:
463:
454:
448:
429:
417:
368:
362:
327:(2): 55–67.
324:
318:
278:Bibliography
272:cardiologist
240:Brocket Hall
237:
221:
197:
188:
185:A.K. Dewdney
177:right angles
166:
159:
140:
114:
113:
92:
738:1944 births
58:Nationality
23:Lee Sallows
707:Categories
593:2010-10-08
409:References
295:0486489094
45:1944-04-30
455:Word Play
341:121493484
204:rep-tiles
602:cite web
547:(1991).
437:Archived
264:Nijmegen
123:golygons
70:Golygons
573:2690648
385:2690648
228:similar
224:medians
187:in the
181:integer
173:polygon
169:golygon
61:English
43: (
645:
571:
398:
383:
339:
309:
293:
129:, and
99:Fields
643:JSTOR
569:JSTOR
381:JSTOR
347:1991
337:S2CID
315:1992
171:is a
608:link
396:ISBN
307:ISBN
291:ISBN
149:and
38:Born
635:doi
561:doi
518:doi
373:doi
329:doi
242:in
709::
663:"
641:.
631:85
629:.
625:.
604:}}
600:{{
567:.
557:64
555:.
551:.
543:;
539:;
514:19
512:.
508:.
490:,
472:,
379:.
369:64
367:.
357:;
353:;
335:.
325:14
323:.
206:.
195:.
167:A
133:.
125:,
649:.
637::
610:)
596:.
575:.
563::
524:.
520::
387:.
375::
343:.
331::
47:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
