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ÖøÃû³õµÈÊýѧÎÊÌâ 100 Great Problems of Elementary Mathematics µÚ01Ìâ °¢»ùÃ׵·ÖÅ£ÎÊÌâArchimedes' Problema Bovinum Ì«ÑôÉñÓÐһţȺ£¬Óɰס¢ºÚ¡¢»¨¡¢×ØËÄÖÖÑÕÉ«µÄ¹«¡¢Ä¸Å£×é³É. ÔÚ¹«Å£ÖУ¬°×Å£Êý¶àÓÚרţÊý£¬¶à³öÖ®ÊýÏ൱ÓÚºÚÅ£ÊýµÄ1/2+1/3£»ºÚÅ£Êý¶àÓÚרţÊý£¬¶à³öÖ®ÊýÏ൱ÓÚ»¨Å£ÊýµÄ¼+1/5£»»¨Å£Êý¶àÓÚרţÊý£¬¶à³öÖ®ÊýÏ൱ÓÚ°×Å£ÊýµÄ1/6+1/7. ÔÚĸţÖУ¬°×Å£ÊýÊÇÈ«ÌåºÚÅ£ÊýµÄ1/3+¼£»ºÚÅ£ÊýÊÇÈ«Ì廨ţÊý¼+1/5£»»¨Å£ÊýÊÇÈ«ÌåרţÊýµÄ1/5+1/6£»×ØÅ£ÊýÊÇÈ«Ìå°×Å£ÊýµÄ1/6+1/7. ÎÊÕâţȺÊÇÔõÑù×é³ÉµÄ£¿ µÚ02Ì⠵•÷ÆëÀïÑǿ˵ķ¨ÂëÎÊÌâThe Weight Problem of Bachet de Meziriac һλÉÌÈËÓÐÒ»¸ö40°õµÄíÀÂ룬ÓÉÓÚµøÂäÔڵضøËé³É4¿é.ºóÀ´£¬³ÆµÃÿ¿éË鯬µÄÖØÁ¿¶¼ÊÇÕû°õÊý£¬¶øÇÒ¿ÉÒÔÓÃÕâ4¿éÀ´³Æ´Ó1ÖÁ40°õÖ®¼äµÄÈÎÒâÕûÊý°õµÄÖØÎï. ÎÊÕâ4¿éíÀÂëË鯬¸÷ÖØ¶àÉÙ£¿ µÚ03Ìâ Å£¶ÙµÄ²ÝµØÓëĸţÎÊÌâNewton's Problem of the Fields and Cows aͷĸţ½«b¿éµØÉϵÄÄÁ²ÝÔÚcÌìÄÚ³ÔÍêÁË£» a'ͷĸţ½«b'¿éµØÉϵÄÄÁ²ÝÔÚc'ÌìÄÚ³ÔÍêÁË£» a"ͷĸţ½«b"¿éµØÉϵÄÄÁ²ÝÔÚc"ÌìÄÚ³ÔÍêÁË£» Çó³ö´Óaµ½c"9¸öÊýÁ¿Ö®¼äµÄ¹ØÏµ£¿ µÚ04Ìâ ±´Î¤¿ËµÄÆß¸ö7µÄÎÊÌâBerwick's Problem of the Seven Sevens ÔÚÏÂÃæ³ý·¨ÀýÌâÖУ¬±»³ýÊý±»³ýÊý³ý¾¡£º * * 7 * * * * * * * ¡Â * * * * 7 * = * * 7 * * * * * * * * * * * * * 7 * * * * * * * * * 7 * * * * * 7 * * * * * * * * * * * * * * * 7 * * * * * * * * * * * * * * ÓÃÐǺţ¨*£©±ê³öµÄÄÇЩÊýλÉϵÄÊý×ÖżȻ±»²ÁµôÁË£¬ÄÇЩ²»¼ûÁ˵ÄÊÇЩʲôÊý×ÖÄØ£¿ µÚ05Ì⠿¿ËÂüµÄŮѧÉúÎÊÌâKirkman's Schoolgirl Problem ij¼ÄËÞѧУÓÐÊ®ÎåÃûÅ®Éú£¬ËýÃǾ³£Ã¿ÌìÈýÈËÒ»ÐеØÉ¢²½£¬ÎÊÒªÔõÑù°²ÅŲÅÄÜʹÿ¸öÅ®ÉúͬÆäËûÿ¸öÅ®ÉúͬһÐÐÖÐÉ¢²½£¬²¢Ç¡ºÃÿÖÜÒ»´Î£¿ µÚ06Ìâ ²®Å¬Àû-Å·À¹ØÓÚ×°´íÐÅ·âµÄÎÊÌâThe Bernoulli-Euler Problem of the Misaddressed letters Çón¸öÔªËØµÄÅÅÁУ¬ÒªÇóÔÚÅÅÁÐÖÐûÓÐÒ»¸öÔªËØ´¦ÓÚËüÓ¦µ±Õ¼ÓеÄλÖÃ. µÚ07Ìâ Å·À¹ØÓÚ¶à±ßÐÎµÄÆÊ·ÖÎÊÌâEuler's Problem of Polygon Division ¿ÉÒÔÓжàÉÙÖÖ·½·¨ÓöԽÇÏß°ÑÒ»¸ön±ß¶à±ßÐΣ¨Æ½ÃæÍ¹¶à±ßÐΣ©ÆÊ·Ö³ÉÈý½ÇÐΣ¿ µÚ08Ìâ ³¿¨Ë¹µÄÅäż·ò¸¾ÎÊÌâLucas' Problem of the Married Couples n¶Ô·ò¸¾Î§Ô²×À¶ø×ø£¬Æä×ù´ÎÊÇÁ½¸ö¸¾ÈËÖ®¼ä×øÒ»¸öÄÐÈË£¬¶øÃ»ÓÐÒ»¸öÄÐÈ˺Í×Ô¼ºµÄÆÞ×Ó²¢×ø£¬ÎÊÓжàÉÙÖÖ×ø·¨£¿ µÚ09Ìâ ¿¨ÑÇÄ·µÄ¶þÏîÕ¹¿ªÊ½Omar Khayyam's Binomial Expansion µ±nÊÇÈÎÒâÕýÕûÊýʱ£¬ÇóÒÔaºÍbµÄÃݱíʾµÄ¶þÏîʽa+bµÄn´ÎÃÝ. µÚ10Ìâ ¿ÂÎ÷µÄƽ¾ùÖµ¶¨ÀíCauchy's Mean Theorem ÇóÖ¤n¸öÕýÊýµÄ¼¸ºÎƽ¾ùÖµ²»´óÓÚÕâЩÊýµÄËãÊõƽ¾ùÖµ. µÚ11Ìâ ²®Å¬ÀûÃÝÖ®ºÍµÄÎÊÌâBernoulli's Power Sum Problem È·¶¨Ö¸ÊýpΪÕýÕûÊýʱ×î³õn¸ö×ÔÈ»ÊýµÄp´ÎÃݵĺÍS=1p+2p+3p+¡+np. µÚ12Ìâ Å·ÀÊýThe Euler Number Çóº¯Êý¦Õ(x)=(1+1/x)x¼°¦µ(x)=(1+1/x)x+1µ±xÎÞÏÞÔö´óʱµÄ¼«ÏÞÖµ. µÚ13Ìâ Å£¶ÙÖ¸Êý¼¶ÊýNewton's Exponential Series ½«Ö¸Êýº¯Êýex±ä»»³É¸÷ÏîΪxµÄÃݵļ¶Êý. µÚ14Ìâ Âó¿Ìضû¶ÔÊý¼¶ÊýNicolaus Mercator's Logarithmic Series ²»ÓöÔÊý±í£¬¼ÆËãÒ»¸ö¸ø¶¨ÊýµÄ¶ÔÊý. µÚ15Ìâ Å£¶ÙÕýÏÒ¼°ÓàÏÒ¼¶ÊýNewton's Sine and Cosine Series ²»Óòé±í¼ÆËãÒÑÖª½ÇµÄÕýÏÒ¼°ÓàÏÒÈý½Çº¯Êý. µÚ16Ìâ Õý¸îÓëÕýÇм¶ÊýµÄ°²µÂÁÒÍÆµ¼·¨Andre's Derivation of the Secant and Tangent Series ÔÚn¸öÊý1£¬2£¬3£¬¡,nµÄÒ»¸öÅÅÁÐc1£¬c2£¬¡£¬cnÖУ¬Èç¹ûûÓÐÒ»¸öÔªËØciµÄÖµ½éÓÚÁ½¸öÁÚ½üµÄÖµci-1ºÍci+1Ö®¼ä£¬Ôò³Æc1£¬c2£¬¡£¬cnΪ1£¬2£¬3£¬¡,nµÄÒ»¸öÇüÕÛÅÅÁÐ. ÊÔÀûÓÃÇüÕÛÅÅÁÐÍÆµ¼Õý¸îÓëÕýÇеļ¶Êý. µÚ17Ìâ ¸ñÀ׸êÀïµÄ·´ÕýÇм¶ÊýGregory's Arc Tangent Series ÒÑÖªÈýÌõ±ß£¬²»Óòé±íÇóÈý½ÇÐεĸ÷½Ç. µÚ18Ì⠵²¼·âµÄÕëÎÊÌâBuffon's Needle Problem ÔÚÌ¨ÃæÉÏ»³öÒ»×é¼ä¾àΪdµÄƽÐÐÏߣ¬°Ñ³¤¶ÈΪl£¨Ð¡ÓÚd£©µÄÒ»¸ùÕëÈÎÒâͶÖÀÔÚÌ¨ÃæÉÏ£¬ÎÊÕë´¥¼°Á½Æ½ÐÐÏßÖ®Ò»µÄ¸ÅÂÊÈçºÎ£¿ µÚ19Ìâ ·ÑÂí-Å·ÀËØÊý¶¨ÀíThe Fermat-Euler Prime Number Theorem ÿ¸ö¿É±íʾΪ4n+1ÐÎʽµÄËØÊý£¬Ö»ÄÜÓÃÒ»ÖÖÁ½Êýƽ·½ºÍµÄÐÎʽÀ´±íʾ. µÚ20Ìâ ·ÑÂí·½³ÌThe Fermat Equation Çó·½³Ìx2£dy2=1µÄÕûÊý½â£¬ÆäÖÐdΪ·Ç¶þ´ÎÕýÕûÊý. µÚ21Ìâ ·ÑÂí-¸ß˹²»¿ÉÄÜÐÔ¶¨ÀíThe Fermat-Gauss Impossibility Theorem Ö¤Ã÷Á½¸öÁ¢·½ÊýµÄºÍ²»¿ÉÄÜΪһÁ¢·½Êý. µÚ22Ìâ ¶þ´Î»¥·´ÂÉThe Quadratic Reciprocity Law £¨Å·À-ÀÕÈõÂ-¸ß˹¶¨Àí£©ÆæËØÊýpÓëqµÄÀÕÈõ»¥·´·ûºÅÈ¡¾öÓÚ¹«Ê½ £¨p/q£©•£¨q/p£©=£¨£1£©[(p-1)/2]•[(q-1)/2]. µÚ23Ìâ ¸ß˹µÄ´úÊý»ù±¾¶¨ÀíGauss' Fundamental Theorem of Algebra ÿһ¸ön´ÎµÄ·½³Ìzn+c1zn-1+c2zn-2+¡+cn=0¾ßÓÐn¸ö¸ù. µÚ24Ìâ ˹ͼÚӵĸùµÄ¸öÊýÎÊÌâSturm's Problem of the Number of Roots ÇóʵϵÊý´úÊý·½³ÌÔÚÒÑÖªÇø¼äÉϵÄʵ¸ùµÄ¸öÊý. µÚ25Ìâ °¢±´¶û²»¿ÉÄÜÐÔ¶¨ÀíAbel's Impossibility Theorem ¸ßÓÚËĴεķ½³ÌÒ»°ã²»¿ÉÄÜÓдúÊý½â·¨. µÚ26Ìâ ºÕÃ×ÌØ-ÁÖµÂÂü³¬Ô½ÐÔ¶¨ÀíThe Hermite-Lindemann Transcedence Theorem ϵÊýA²»µÈÓÚÁ㣬ָÊý¦ÁΪ»¥²»ÏàµÈµÄ´úÊýÊýµÄ±í´ïʽA1e¦Á1+A2e¦Á2+A3e¦Á3+¡²»¿ÉÄܵÈÓÚÁã. µÚ27Ìâ Å·ÀÖ±ÏßEuler's Straight Line ÔÚËùÓÐÈý½ÇÐÎÖУ¬Íâ½ÓÔ²µÄÔ²ÐÄ£¬¸÷ÖÐÏߵĽ»µãºÍ¸÷¸ßµÄ½»µãÔÚÒ»Ö±Ïß¡ªÅ·ÀÏßÉÏ£¬¶øÇÒÈýµãµÄ·Ö¸ôΪ£º¸÷¸ßÏߵĽ»µã£¨´¹ÐÄ£©ÖÁ¸÷ÖÐÏߵĽ»µã£¨ÖØÐÄ£©µÄ¾àÀëÁ½±¶ÓÚÍâ½ÓÔ²µÄÔ²ÐÄÖÁ¸÷ÖÐÏߵĽ»µãµÄ¾àÀë. µÚ28Ì⠷Ѷû°Í¹þÔ²The Feuerbach Circle Èý½ÇÐÎÖÐÈý±ßµÄÈý¸öÖе㡢Èý¸ö¸ßµÄ´¹×ãºÍ¸ßµÄ½»µãµ½¸÷¶¥µãµÄÏ߶εÄÈý¸öÖеãÔÚÒ»¸öÔ²ÉÏ. µÚ29Ìâ ¿¨Ë¹µÙÀÊÎÊÌâCastillon's Problem ½«¸÷±ßͨ¹ýÈý¸öÒÑÖªµãµÄÒ»¸öÈý½ÇÐÎÄÚ½ÓÓÚÒ»¸öÒÑÖªÔ². µÚ30Ìâ Âí¶û·¨µÙÎÊÌâMalfatti's Problem ÔÚÒ»¸öÒÑÖªÈý½ÇÐÎÄÚ»Èý¸öÔ²£¬Ã¿¸öÔ²ÓëÆäËûÁ½¸öÔ²ÒÔ¼°Èý½ÇÐεÄÁ½±ßÏàÇÐ. µÚ31Ìâ ÃÉÈÕÎÊÌâMonge's Problem »Ò»¸öÔ²£¬Ê¹ÆäÓëÈýÒÑÖªÔ²Õý½». µÚ32Ìâ °¢²¨ÂåÄá˹ÏàÇÐÎÊÌâThe Tangency Problem of Apollonius. »Ò»¸öÓëÈý¸öÒÑÖªÔ²ÏàÇеÄÔ². µÚ33Ìâ ÂíË÷ÈôÄáÔ²¹æÎÊÌâMacheroni's Compass Problem. Ö¤Ã÷ÈκοÉÓÃÔ²¹æºÍÖ±³ßËù×÷µÄͼ¾ù¿ÉÖ»ÓÃÔ²¹æ×÷³ö. µÚ34Ìâ ˹̹ÄÉÖ±³ßÎÊÌâSteiner's Straight-edge Problem Ö¤Ã÷ÈκÎÒ»¸ö¿ÉÒÔÓÃÔ²¹æºÍÖ±³ß×÷³öµÄͼ£¬Èç¹ûÔÚÆ½ÃæÄÚ¸ø³öÒ»¸ö¶¨Ô²£¬Ö»ÓÃÖ±³ß±ã¿É×÷³ö. µÚ35Ìâ µÂÀï°²±¶Á¢·½ÎÊÌâThe Deliaii Cube-doubling Problem »³öÌå»ýΪһÒÑÖªÁ¢·½ÌåÁ½±¶µÄÁ¢·½ÌåµÄÒ»±ß. µÚ36Ìâ ÈýµÈ·ÖÒ»¸ö½ÇTrisection of an Angle °ÑÒ»¸ö½Ç·Ö³ÉÈý¸öÏàµÈµÄ½Ç. µÚ37Ìâ ÕýÊ®Æß±ßÐÎThe Regular Heptadecagon »Ò»ÕýÊ®Æß±ßÐÎ. µÚ38Ìâ °¢»ùÃ׵¦Ðֵȷ¶¨·¨Archimedes' Determination of the Number Pi ÉèÔ²µÄÍâÇкÍÄÚ½ÓÕý2vn±ßÐεÄÖܳ¤·Ö±ðΪavºÍbv£¬±ãÒÀ´ÎµÃµ½¶à±ßÐÎÖܳ¤µÄ°¢»ùÃ×µÂÊýÁУºa0£¬b0£¬a1£¬b1£¬a2£¬b2£¬¡ÆäÖÐav+1ÊÇav¡¢bvµÄµ÷ºÍÖÐÏbv+1ÊÇbv¡¢av+1µÄµÈ±ÈÖÐÏî. ¼ÙÈçÒÑÖª³õʼÁ½ÏÀûÓÃÕâ¸ö¹æÔò±ãÄܼÆËã³öÊýÁеÄËùÓÐÏî. Õâ¸ö·½·¨½Ð×÷°¢»ùÃ×µÂËã·¨. µÚ39Ìâ ¸»Ë¹ÏÒÇÐËıßÐÎÎÊÌâFuss' Problem of the Chord-Tangent Quadrilateral ÕÒ³ö°ë¾¶ÓëË«ÐÄËıßÐεÄÍâ½ÓÔ²ºÍÄÚÇÐÔ²Á¬ÐÄÏßÖ®¼äµÄ¹ØÏµ.£¨×¢£ºÒ»¸öË«ÐÄ»òÏÒÇÐËıßÐε͍ÒåÊǼÈÄÚ½ÓÓÚÒ»¸öÔ²¶øÍ¬Ê±ÓÖÍâÇÐÓÚÁíÒ»¸öÔ²µÄËıßÐΣ© µÚ40Ìâ ²âÁ¿¸½ÌâAnnex to a Survey ÀûÓÃÒÑÖªµãµÄ·½Î»À´È·¶¨µØÇò±íÃæÎ´Öªµ«¿Éµ½´ïµÄµãµÄλÖÃ. µÚ41Ìâ °¢¶û¹þɵ¯×ÓÎÊÌâAlhazen's Billiard Problem ÔÚÒ»¸öÒÑÖªÔ²ÄÚ£¬×÷³öÒ»¸öÆäÁ½Ñüͨ¹ýÔ²ÄÚÁ½¸öÒÑÖªµãµÄµÈÑüÈý½ÇÐÎ. µÚ42Ìâ Óɹ²éî°ë¾¶×÷ÍÖÔ²An Ellipse from Conjugate Radii ÒÑÖªÁ½¸ö¹²éî°ë¾¶µÄ´óСºÍλÖã¬×÷ÍÖÔ². µÚ43Ìâ ÔÚÆ½ÐÐËıßÐÎÄÚ×÷ÍÖÔ²An Ellipse in a Parallelogram, Ôڹ涨µÄƽÐÐËıßÐÎÄÚ×÷Ò»ÄÚÇÐÍÖÔ²£¬ËüÓë¸ÃƽÐÐËıßÐÎÇÐÓÚÒ»±ß½çµã. µÚ44Ìâ ÓÉËÄÌõÇÐÏß×÷Å×ÎïÏßA Parabola from Four Tangents ÒÑÖªÅ×ÎïÏßµÄËÄÌõÇÐÏߣ¬×÷Å×ÎïÏß. µÚ45Ìâ ÓÉËĵã×÷Å×ÎïÏßA Parabola from Four Points. ¹ýËĸöÒÑÖªµã×÷Å×ÎïÏß. µÚ46Ìâ ÓÉËĵã×÷Ë«ÇúÏßA Hyperbola from Four Points. ÒÑÖªÖ±½Ç£¨µÈÖᣩ˫ÇúÏßÉÏËĵ㣬×÷³öÕâÌõË«ÇúÏß. µÚ47Ìâ ·¶•Ê©¹ÅµÇ¹ì¼£ÌâVan Schooten's Locus Problem Æ½ÃæÉϵĹ̶¨Èý½ÇÐεÄÁ½¸ö¶¥µãÑØÆ½ÃæÉÏÒ»¸ö½ÇµÄÁ½¸ö±ß»¬¶¯£¬µÚÈý¸ö¶¥µãµÄ¹ì¼£ÊÇʲô£¿ µÚ48Ìâ ¿¨µ¤ÐýÂÖÎÊÌâCardan's Spur Wheel Problem. Ò»¸öÔ²ÅÌÑØ×Ű뾶ΪÆäÁ½±¶µÄÁíÒ»¸öÔ²Å̵ÄÄÚÔµ¹ö¶¯Ê±£¬Õâ¸öÔ²ÅÌÉϱ궨µÄÒ»µãËùÃè³öµÄ¹ì¼£ÊÇʲô£¿ µÚ49Ìâ Å£¶ÙÍÖÔ²ÎÊÌâNewton's Ellipse Problem. È·¶¨ÄÚÇÐÓÚÒ»¸öÒÑÖª£¨Í¹£©ËıßÐεÄËùÓÐÍÖÔ²µÄÖÐÐĵĹ켣. µÚ50Ìâ ÅíÈüÁÐ-²¼Àï°ºÐÙË«ÇúÏßÎÊÌâThe Poncelet-Brianchon Hyperbola Problem È·¶¨ÄÚ½ÓÓÚÖ±½Ç£¨µÈ±ß£©Ë«ÇúÏßµÄËùÓÐÈý½ÇÐεĶ¥´¹Ïß½»µãµÄ¹ì¼£. µÚ51Ìâ ×÷Ϊ°üÂçµÄÅ×ÎïÏßA Parabola as Envelope ´Ó½ÇµÄ¶¥µã£¬ÔڽǵÄÒ»Ìõ±ßÉÏÁ¬Ðøn´Î½ØÈ¡ÈÎÒâÏß¶Îe£¬ÔÚÁíÒ»Ìõ±ßÉÏÁ¬Ðøn´Î½ØÈ¡Ïß¶Îf£¬²¢½«Ï߶εĶ˵ã×¢ÒÔÊý×Ö£¬´Ó¶¥µã¿ªÊ¼£¬·Ö±ðΪ0£¬1£¬2£¬¡£¬nºÍn£¬n£1£¬¡£¬2£¬1£¬0. ÇóÖ¤¾ßÓÐÏàͬÊý×ֵĵãµÄÁ¬ÏߵİüÂçΪһÌõÅ×ÎïÏß. µÚ52Ìâ ÐÇÐÎÏßThe Astroid Ö±ÏßÉÏÁ½¸ö±ê¶¨µÄµãÑØ×ÅÁ½Ìõ¹Ì¶¨µÄ»¥Ïà´¹Ö±µÄÖỬ¶¯£¬ÇóÕâÌõÖ±ÏߵİüÂç. µÚ53Ìâ ˹̹ÄɵÄÈýµãÄÚ°ÚÏßSteiner's Three-pointed Hypocycloid È·¶¨Ò»¸öÈý½ÇÐεĻªÀ³Ê¿£¨Wallace£©ÏߵİüÂç. µÚ54Ìâ Ò»¸öËıßÐεÄ×î½Ó½üÔ²µÄÍâ½ÓÍÖÔ²The Most Nearly Circular Ellipse Circumscribing a Quadrilateral Ò»¸öÒÑÖªËıßÐεÄËùÓÐÍâ½ÓÍÖÔ²ÖУ¬ÄÄÒ»¸öÓëÔ²µÄÆ«²î×îС£¿ µÚ55Ìâ Ô²×¶ÇúÏßµÄÇúÂÊThe Curvature of Conic Sections È·¶¨Ò»¸öÔ²×¶ÇúÏßµÄÇúÂÊ. µÚ56Ìâ °¢»ùÃ׵¶ÔÅ×ÎïÏßÃæ»ýµÄÍÆËãArchimedes' Squaring of a Parabola È·¶¨°üº¬ÔÚÅ×ÎïÏßÄÚµÄÃæ»ý. µÚ57Ìâ ÍÆËãË«ÇúÏßµÄÃæ»ýSquaring a Hyperbola È·¶¨Ë«ÇúÏß±»½ØµÃµÄ²¿·ÖËùº¬µÄÃæ»ý. µÚ58Ìâ ÇóÅ×ÎïÏߵij¤Rectification of a Parabola È·¶¨Å×ÎïÏß»¡µÄ³¤¶È. µÚ59Ìâ µÑɳ¸ñͬµ÷¶¨Àí£¨Í¬µ÷Èý½ÇÐζ¨Àí£©Desargues' Homology Theorem (Theorem of Homologous Triangles) Èç¹ûÁ½¸öÈý½ÇÐεĶÔÓ¦¶¥µãÁ¬Ïßͨ¹ýÒ»µã£¬ÔòÕâÁ½¸öÈý½ÇÐεĶÔÓ¦±ß½»µãλÓÚÒ»ÌõÖ±ÏßÉÏ. ·´Ö®£¬Èç¹ûÁ½¸öÈý½ÇÐεĶÔÓ¦±ß½»µãλÓÚÒ»ÌõÖ±ÏßÉÏ£¬ÔòÕâÁ½¸öÈý½ÇÐεĶÔÓ¦¶¥µãÁ¬Ïßͨ¹ýÒ»µã. µÚ60Ìâ ˹̹ÄɵĶþÖØÔªËØ×÷ͼ·¨Steiner's Double Element Construction ÓÉÈý¶Ô¶ÔÓ¦ÔªËØËù¸ø¶¨µÄÖØµüÉäÓ°ÐΣ¬×÷³öËüµÄ¶þÖØÔªËØ. µÚ61Ìâ ÅÁ˹¿¨Áù±ßÐζ¨ÀíPascal's Hexagon Theorem ÇóÖ¤ÄÚ½ÓÓÚÔ²×¶ÇúÏßµÄÁù±ßÐÎÖУ¬ÈýË«¶Ô±ßµÄ½»µãÔÚÒ»Ö±ÏßÉÏ. µÚ62Ìâ ²¼Àï°ºÐÙÁùÏßÐζ¨ÀíBrianchon's Hexagram Theorem ÇóÖ¤ÍâÇÐÓÚÔ²×¶ÇúÏßµÄÁùÏßÐÎÖУ¬ÈýÌõ¶Ô¶¥Ïßͨ¹ýÒ»µã. µÚ63Ìâ µÑɳ¸ñ¶ÔºÏ¶¨ÀíDesargues' Involution Theorem Ò»ÌõÖ±ÏßÓëÒ»¸öÍêÈ«ËĵãÐÎ*µÄÈýË«¶Ô±ßµÄ½»µãÓëÍâ½ÓÓÚ¸ÃËĵãÐεÄÔ²×¶ÇúÏß¹¹³ÉÒ»¸ö¶ÔºÏµÄËĸöµãż. Ò»¸öµãÓëÒ»¸öÍêÈ«ËÄÏßÐÎ*µÄÈýË«¶Ô¶¥µãµÄÁ¬ÏߺʹӸõãÏòÄÚÇÐÓÚ¸ÃËÄÏßÐεÄÔ²×¶ÇúÏßËùÒýµÄÇÐÏß¹¹³ÉÒ»¸ö¶ÔºÏµÄËĸöÉäÏßż.*Ò»¸öÍêÈ«ËĵãÐΣ¨ËÄÏßÐΣ©Êµ¼ÊÉϺ¬ÓÐËĵ㣨Ïߣ©1£¬2£¬3£¬4ºÍËüÃǵÄÁùÌõÁ¬Ïß½»µã23£¬14£¬31£¬24£¬12£¬34£»ÆäÖÐ23Óë14¡¢31Óë24¡¢12Óë34³ÆÎª¶Ô±ß£¨¶Ô¶¥µã£©. µÚ64Ìâ ÓÉÎå¸öÔªËØµÃµ½µÄÔ²×¶ÇúÏßA Conic Section from Five Elements Çó×÷Ò»¸öÔ²×¶ÇúÏߣ¬ËüµÄÎå¸öÔªËØ¡ª¡ªµãºÍÇÐÏß¡ª¡ªÊÇÒÑÖªµÄ. µÚ65Ìâ Ò»ÌõÔ²×¶ÇúÏߺÍÒ»ÌõÖ±ÏßA Conic Section and a Straight Line Ò»ÌõÒÑÖªÖ±ÏßÓëÒ»Ìõ¾ßÓÐÎå¸öÒÑÖªÔªËØ¡ª¡ªµãºÍÇÐÏß¡ª¡ªµÄÔ²×¶ÇúÏßÏཻ£¬Çó×÷ËüÃǵĽ»µã. µÚ66Ìâ Ò»ÌõÔ²×¶ÇúÏߺÍÒ»¶¨µãA Conic Section and a Point ÒÑÖªÒ»µã¼°Ò»Ìõ¾ßÓÐÎå¸öÒÑÖªÔªËØ¡ª¡ªµãºÍÇÐÏß¡ª¡ªµÄÔ²×¶ÇúÏߣ¬×÷³ö´Ó¸ÃµãÁе½¸ÃÇúÏßµÄÇÐÏß. µÚ67Ìâ ˹̹ÄɵÄÓÃÆ½Ãæ·Ö¸î¿Õ¼äSteiner's Division of Space by Planes n¸öÆ½Ãæ×î¶à¿É½«Õû¸ö¿Õ¼ä·Ö¸î³É¶àÉÙ·Ý£¿ µÚ68Ìâ Å·ÀËÄÃæÌåÎÊÌâEuler's Tetrahedron Problem ÒÔÁùÌõÀâ±íʾËÄÃæÌåµÄÌå»ý. µÚ69Ìâ Æ«Ð±Ö±ÏßÖ®¼äµÄ×î¶Ì¾àÀëThe Shortest Distance Between Skew Lines ¼ÆËãÁ½ÌõÒÑ֪ƫбֱÏßÖ®¼äµÄ½ÇºÍ¾àÀë. µÚ70Ìâ ËÄÃæÌåµÄÍâ½ÓÇòThe Sphere Circumscribing a Tetrahedron È·¶¨Ò»¸öÒÑÖªËùÓÐÁùÌõÀâµÄËÄÃæÌåµÄÍâ½ÓÇòµÄ°ë¾¶. µÚ71Ìâ ÎåÖÖÕýÔòÌåThe Five Regular Solids ½«Ò»¸öÇòÃæ·Ö³ÉÈ«µÈµÄÇòÃæÕý¶à±ßÐÎ. µÚ72Ìâ Õý·½ÐÎ×÷ΪËıßÐεÄÒ»¸öÓ³ÏóThe Square as an Image of a Quadrilateral Ö¤Ã÷ÿ¸öËıßÐζ¼¿ÉÒÔ¿´×÷ÊÇÒ»¸öÕý·½ÐεÄ͸ÊÓÓ³Ïó. µÚ73Ìâ ²¨¶û¿-ÐíÍß¶û×ȶ¨ÀíThe Pohlke-Schwartz Theorem Ò»¸öÆ½ÃæÉϲ»È«ÔÚͬһÌõÖ±ÏßÉϵÄËĸöÈÎÒâµã£¬¿ÉÈÏΪÊÇÓëÒ»¸öÒÑÖªËÄÃæÌåÏàËÆµÄËÄÃæÌåµÄ¸÷Óç½ÇµÄбӳÉä. µÚ74Ìâ ¸ß˹Öá²â·¨»ù±¾¶¨ÀíGauss' Fundamental Theorem of Axonometry ÕýÖá²â·¨µÄ¸ß˹»ù±¾¶¨Àí£ºÈç¹ûÔÚÒ»¸öÈýÃæ½ÇµÄÕýͶӰÖУ¬°ÑÓ³ÏóÆ½Ãæ×÷Ϊ¸´Æ½Ã棬ÈýÃæ½Ç¶¥µãµÄͶӰ×÷ΪÁãµã£¬±ßµÄ¸÷¶ËµãµÄͶӰ×÷ÎªÆ½ÃæµÄ¸´Êý£¬ÄÇôÕâЩÊýµÄƽ·½ºÍµÈÓÚÁã. µÚ75Ìâ Ï£ÅÁ²é˹Çò¼«Æ½ÃæÉäÓ°Hipparchus' Stereographic Projection ÊÔ¾Ù³öÒ»ÖְѵØÇòÉϵÄԲת»»ÎªµØÍ¼ÉÏÔ²µÄ±£ÐεØÍ¼ÉäÓ°·¨. µÚ76Ìâ Âó¿¨ÍÐͶӰThe Mercator Projection »Ò»¸ö±£ÐεØÀíµØÍ¼£¬Æä×ø±ê·½¸ñÊÇÓÉÖ±½Ç·½¸ñ×é³ÉµÄ. µÚ77Ìâ º½º£Ð±Ê»ÏßÎÊÌâThe Problem of the Loxodrome È·¶¨µØÇò±íÃæÁ½µã¼äбʻÏߵľ¶È. µÚ78Ìâ º£ÉÏ´¬Î»ÖõÄÈ·¶¨Determining the Position of a Ship at Sea ÀûÓÃÌìÎľÏßÍÆË㷨ȷ¶¨´¬ÔÚº£ÉϵÄλÖÃ. µÚ79Ìâ ¸ß˹˫¸ß¶ÈÎÊÌâGauss' Two-Altitude Problem ¸ù¾ÝÒÑÖªÁ½ÐÇÇòµÄ¸ß¶ÈÒÔÈ·¶¨Ê±¼ä¼°Î»ÖÃ. µÚ80Ìâ ¸ß˹Èý¸ß¶ÈÎÊÌâGauss' Three-Altitude Problem ´ÓÔÚÒÑÖªÈýÐÇÇò»ñµÃͬ¸ß¶È˲¼äµÄʱ¼ä¼ä¸ô£¬È·¶¨¹Û²ì˲¼ä£¬¹Û²ìµãµÄγ¶È¼°ÐÇÇòµÄ¸ß¶È. µÚ81Ì⠿̲·ÀÕ·½³ÌThe Kepler Equation ¸ù¾ÝÐÐÐÇµÄÆ½¾ù½üµã½Ç£¬¼ÆËãÆ«Ðļ°Õæ½üµã½Ç. µÚ82Ìâ ÐÇÂäStar Setting ¶Ô¸ø¶¨µØµãºÍÈÕÆÚ£¬¼ÆËãÒ»ÒÑÖªÐÇÂäµÄʱ¼äºÍ·½Î»½Ç. µÚ83Ìâ ÈÕêÐÎÊÌâThe Problem of the Sundial ÖÆ×÷Ò»¸öÈÕêÐ. µÚ84Ìâ ÈÕÓ°ÇúÏßThe Shadow Curve µ±Ö±¸ËÖÃÓÚγ¶È¦ÕµÄµØµã¼°¸ÃÈÕÌ«ÑôµÄ³àγÓЦÄֵʱ£¬È·¶¨ÔÚÒ»Ìì¹ý³ÌÖÐÓɸ˵ÄÒ»µãͶӰËùÃè»æµÄÇúÏß. µÚ85Ìâ ÈÕʳºÍÔÂʳSolar and Lunar Eclipses Èç¹û¶ÔÓÚ³ä·Ö½Ó½üÈÕʳʱ¼äµÄÁ½¸ö˲¼äÌ«ÑôºÍÔÂÁÁµÄ³à¾¡¢³àγÒÔ¼°Æä°ë¾¶¾ùΪÒÑÖª£¬È·¶¨ÈÕʳµÄ¿ªÊ¼ºÍ½áÊø£¬ÒÔ¼°Ì«Ñô±íÃæ±»Òþ±Î²¿·ÖµÄ×î´óÖµ. µÚ86Ìâ ºãÐǼ°»áºÏÔËתÖÜÆÚSidereal and Synodic Revolution Periods È·¶¨ÒÑÖªºãÐÇÔËתÖÜÆÚµÄÁ½¹²ÃæÐýתÉäÏߵĻáºÏÔËתÖÜÆÚ. µÚ87Ìâ ÐÐÐǵÄ˳ÏòºÍÄæÏòÔ˶¯Progressive and Retrograde Motion of Planets ÐÐÐÇʲôʱºò´Ó˳Ïò×ªÎªÄæÏòÔ˶¯£¨»ò·´¹ýÀ´£¬´ÓÄæÏòתΪ˳ÏòÔ˶¯£©£¿ µÚ88Ìâ À¼²®ÌØ»ÛÐÇÎÊÌâLambert's Comet Prolem ½èÖú½¹°ë¾¶¼°Á¬½Ó»¡¶ËµãµÄÏÒ£¬À´±íʾ»ÛÐÇÃè»æÅ×ÎïÏß¹ìµÀµÄÒ»¶Î»¡ËùÐèµÄʱ¼ä. µÚ89Ìâ ÓëÅ·ÀÊýÓйصÄ˹̹ÄÉÎÊÌâSteiner's Problem Concerning the Euler Number Èç¹ûxΪÕý±äÊý£¬xÈ¡ºÎֵʱ£¬xµÄx´Î·½¸ùΪ×î´ó£¿ µÚ90Ìâ ·¨¸ñÄËŵ¹ØÓڸߵĻùµãµÄÎÊÌâFagnano's Altitude Base Point Problem ÔÚÒÑÖªÈñ½ÇÈý½ÇÐÎÖУ¬×÷Öܳ¤×îСµÄÄÚ½ÓÈý½ÇÐÎ. µÚ91Ìâ ·ÑÂí¶ÔÍÐÀï²ðÀûÌá³öµÄÎÊÌâFermat's Problem for Torricelli ÊÔÇóÒ»µã£¬Ê¹Ëüµ½ÒÑÖªÈý½ÇÐεÄÈý¸ö¶¥µã¾àÀëÖ®ºÍΪ×îС. µÚ92Ìâ Äæ·ç±ä»»º½ÏòTacking Under a Headwind ·«´¬ÈçºÎÄܶ¥×ű±·çÒÔ×î¿ìµÄËÙ¶ÈÏòÕý±±º½ÐУ¿ µÚ93Ìâ ·ä³²£¨À×°¢ÎÚÄ·¶ûÎÊÌ⣩The Honeybee Cell (Problem by Reaumur) ÊÔ²ÉÓÃÓÉÈý¸öÈ«µÈµÄÁâÐÎ×÷³ÉµÄ¶¥¸ÇÀ´·â±ÕÒ»¸öÕýÁùÀâÖù£¬Ê¹ËùµÃµÄÕâÒ»¸öÁ¢ÌåÓÐÔ¤¶¨µÄÈÝ»ý£¬¶øÆä±íÃæ»ýΪ×îС. µÚ94Ìâ Àׯæ°ÂĪËþŬ˹µÄ¼«´óÖµÎÊÌâRegiomontanus' Maximum Problem ÔÚµØÇò±íÃæµÄʲô²¿Î»£¬Ò»¸ù´¹Ö±µÄÐü¸Ë³ÊÏÖ×£¿£¨¼´ÔÚʲô²¿Î»£¬¿É¼û½ÇΪ×î´ó£¿£© µÚ95Ìâ ½ðÐǵÄ×î´óÁÁ¶ÈThe Maximum Brightness of Venus ÔÚʲôλÖýðÐÇÓÐ×î´óÁÁ¶È£¿ µÚ96Ìâ µØÇò¹ìµÀÄڵĻÛÐÇA Comet Inside the Earth's Orbit »ÛÐÇÔÚµØÇòµÄ¹ìµÀÄÚ×î¶àÄÜÍ£Áô¶àÉÙÌ죿 µÚ97Ìâ ×î¶Ì³¿»èÃÉÓ°ÎÊÌâThe Problem of the Shortest Twilight ÔÚÒÑ֪γ¶ÈµÄµØ·½£¬Ò»ÄêÖ®ÖеÄÄÄÒ»Ì쳿»èÃÉÓ°×î¶Ì£¿ µÚ98Ìâ ˹̹ÄɵÄÍÖÔ²ÎÊÌâSteiner's Ellipse Problem ÔÚËùÓÐÄÜÍâ½Ó£¨ÄÚÇУ©ÓÚÒ»¸öÒÑÖªÈý½ÇÐεÄÍÖÔ²ÖУ¬ÄÄÒ»¸öÍÖÔ²ÓÐ×îС£¨×î´ó£©µÄÃæ»ý£¿ µÚ99Ìâ ˹̹ÄɵÄÔ²ÎÊÌâSteiner's Circle Problem ÔÚËùÓеÈÖܵ썼´ÓÐÏàµÈÖܳ¤µÄ£©Æ½ÃæÍ¼ÐÎÖУ¬Ô²ÓÐ×î´óµÄÃæ»ý. ·´Ö®£ºÔÚÓÐÏàµÈÃæ»ýµÄËùÓÐÆ½ÃæÍ¼ÐÎÖУ¬Ô²ÓÐ×îСµÄÖܳ¤. µÚ100Ìâ ˹̹ÄɵÄÇòÎÊÌâSteiner's Sphere Problem ÔÚ±íÃæ»ýÏàµÈµÄËùÓÐÁ¢ÌåÖУ¬Çò¾ßÓÐ×î´óÌå»ý. 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