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walk1997
½ð³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 4676.2
- ºì»¨: 22
- Ìû×Ó: 1066
- ÔÚÏß: 798.1Сʱ
- ³æºÅ: 416039
- ×¢²á: 2007-06-29
- ÐÔ±ð: GG
- רҵ: Á£×ÓÎïÀíѧºÍ³¡ÂÛ
¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
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t1 = BesselJZero[1, Range[20]] // N t2 = Map[NIntegrate[x*BesselJ[1, x], {x, #, 3 #}] &, t1] t2 // Total Map ²»ÊìϤµÄ»° Ò²¿ÉÒÔÖ±½ÓËã Table[NIntegrate[ x*BesselJ[1, x], {x, BesselJZero[1, i], 3 BesselJZero[1, i]}], {i, 1, 20}] // Total |
4Â¥2014-03-28 07:31:29
walk1997
½ð³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 4676.2
- ºì»¨: 22
- Ìû×Ó: 1066
- ÔÚÏß: 798.1Сʱ
- ³æºÅ: 416039
- ×¢²á: 2007-06-29
- ÐÔ±ð: GG
- רҵ: Á£×ÓÎïÀíѧºÍ³¡ÂÛ
¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
|
MathematicaÄÚ²¿ÓÐÖ±½ÓµÄº¯ÊýÇóÕâ¸öÁãµãλÖà ²»ÓÃ×Ô¼ºÇó½â Äã¶ÔBesselJ °ïÖúÏ ÔÚÏÂÃæ¾ÍÄÜ¿´µ½Ïà¹ØµÄº¯Êý Àý×Ó Table[BesselJZero[1, i], {i, 1, 10}] // N ½á¹û {3.83171, 7.01559, 10.1735, 13.3237, 16.4706, 19.6159, 22.7601, \ 25.9037, 29.0468, 32.1897} |
2Â¥2014-03-27 06:17:06
frostkid
гæ (³õÈëÎÄ̳)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 231.5
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- ÔÚÏß: 5.6Сʱ
- ³æºÅ: 3046843
- ×¢²á: 2014-03-13
- רҵ: »úе²âÊÔÀíÂÛÓë¼¼Êõ
3Â¥2014-03-27 10:20:14
frostkid
гæ (³õÈëÎÄ̳)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 231.5
- Ìû×Ó: 17
- ÔÚÏß: 5.6Сʱ
- ³æºÅ: 3046843
- ×¢²á: 2014-03-13
- רҵ: »úе²âÊÔÀíÂÛÓë¼¼Êõ
5Â¥2014-03-28 16:34:12













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frostkid