͹ءÃÁ
¨§ËҼźǡ¢Í§ $ \frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+...+\frac{1}{1000}$ ¨Ð·ÓÍÂèÒ§äôդÃѺªÕéá¹Ð´éǤÃѺ
|
àà¡$21+31+41+...+10001=(20+1)+(30+1)+(40+1)+...+(10000+1)=10(2+3+4+...+1000)+(1+1+..+1) {998µÑÇ}$ ààÅéÇÅͧ·ÓµèÍàͧ¹Ð¤ÃѺ
|
ÍéÒ§ÍÔ§:
|
21+31+...+10001 ÁÒ¨Ò¡ä˹¤ÃѺ
|
¨Ò¡â¨·ÂìÍФÃѺ
»Å.¼Áãªéâ·ÃÈѾ·ìÍФÃѺ |
#5
ÍèÍ ¼ÁÇèÒàËç¹â¨·Âì¼Ô´ÍèФÃѺ à¾ÃÒÐÁѹà»ç¹àÈÉÊèǹËÁ´àÅ·ÕèàËç¹ 1 ¤×ÍàÈÉ áÅÐ 1,2,3...,10000 à»ç¹Êèǹ |
¢é͹ÕéÁѹà»ç¹ Divergent ¹Õè¤ÃѺ
¶éҨзӨÃÔ§æ¡ç¤§µéͧ¹Ñ觺ǡàÍÒ·ÕÅеÑÇÅèйР|
ÁѹÍÂÙè㹪èǧ$5.988-9.788$
»Ð¤ÃѺ »Å.µéͧ¢Íâ·É·Õè¼ÁÁÑèÇ仹ФÃѺ |
ÅͧËÒÍèÒ¹àÃ×èͧ Harmonic Number ¹Ð¤ÃѺ ÁÕàÃ×èͧ¹èÒʹã¨àÂÍÐàËÁ×͹¡Ñ¹
|
ÍÂÒ¡ÃÙçéééàËÁ×͹¡Ñ¹àÍéÒÊÙéæ
|
àÇÅÒ·ÕèáÊ´§·Ñé§ËÁ´ à»ç¹àÇÅÒ·Õè»ÃÐà·Èä·Â (GMT +7) ¢³Ð¹Õéà»ç¹àÇÅÒ 12:08 |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Modified by Jetsada Karnpracha