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Hi all, I want to calculate the expression by a recurrence equation but I got this error: RSolve::litarg: To avoid possible ambiguity, the arguments of the dependent variable in Hypergeometric2F1[a,a,a+n,z] should literally match the independent variables. >> the code is: F[n_] := Hypergeometric2F1[a, a, a + n, z] RSolve[{(n + a) (n + a - 1 - (2 n - 1) z) F[n] - (n + a) (n + a - 1) (1 - z) F[n - 1] + n^2 F[n + 1] == 0, F[0] == ((a - 1) (1 - z))/(a - 1 + z) Hypergeometric2F1[a, a, a - 1, z]}, F[n],n] Çë´ó¼Ò°ïæ¿´¿´ ³ÌÐòÓÐɶÎÊÌâ »òÕßÓиüºÃµÄ°ì·¨Çó³öF[n],ллÁË |
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mshwangg
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ldoop(½ð±Ò+3): 2010-10-25 18:06:13
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F[n]µÄ½á¹ûºÍÎÒÇóµÃµÄ»ù±¾Ò»Ñù£¬²»¹ýÊÇ...Function[{y, n]}...ÖÐÈ¥µô]¾ÍÒ»ÑùÁË£¬¿ÉÒÔ°ÑÕâ¸ö½á¹ûµ±×÷º¯ÊýÀ´Ó㬾ÍÏñÄãÏÂÃæf[r_, x_, a_, m_]Ò»Ñù¡£ Çó½â¼«´óÖµµÄÎÊÌ⣬ÎÒûÓÐÄõ½½á¹û£¬ÇëÄã×¢ÒâÏÂÁм¸¸öµØ·½£º 1¡¢f[r_, x_, a_, m_]º¯ÊýÖÐzûÓи³Öµ 2¡¢Lº¯ÊýÖÐÓÐ...(n - a) Log[1 - x + r x] ...£¬ÆäÖеÄnÊÇ·ñÊÇn[[j]]£¿ 3¡¢ÎÒ¶Ôr=0.2,x=0.5,a=2,z=2¸³ÖµÊÔËãLº¯Êýֵʱ·¢ÏÖ£¬ÆäֵΪ¸´Êý |
6Â¥2010-10-23 10:34:59
mshwangg
ÖÁ×ðľ³æ (ÕýʽдÊÖ)
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ldoop(½ð±Ò+1):лл²ÎÓë
ÓàÔó³É(½ð±Ò+1):лл²ÎÓëÓ¦Öú£¡ 2010-10-16 17:08:34
ldoop(½ð±Ò+1): 2010-10-18 16:39:03
ldoop(½ð±Ò+1): 2010-10-21 22:31:22
ldoop(½ð±Ò+1):лл²ÎÓë
ÓàÔó³É(½ð±Ò+1):лл²ÎÓëÓ¦Öú£¡ 2010-10-16 17:08:34
ldoop(½ð±Ò+1): 2010-10-18 16:39:03
ldoop(½ð±Ò+1): 2010-10-21 22:31:22
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2Â¥2010-10-16 14:12:38
ldoop
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ajian04:лл²ÎÓë½»Á÷~ 2010-10-22 16:16:18
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3Â¥2010-10-18 16:38:26
mshwangg
ÖÁ×ðľ³æ (ÕýʽдÊÖ)
- ³ÌÐòÇ¿Ìû: 5
- Ó¦Öú: 206 (´óѧÉú)
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- רҵ: ÎïÀíѧI
¡ï ¡ï
ÓàÔó³É(½ð±Ò+2):ÐÁ¿àÁË£¡ 2010-10-19 15:10:59
ldoop(½ð±Ò+1): 2010-10-21 20:02:57
ldoop(½ð±Ò+1): 2010-10-21 20:03:08
ÓàÔó³É(½ð±Ò+2):ÐÁ¿àÁË£¡ 2010-10-19 15:10:59
ldoop(½ð±Ò+1): 2010-10-21 20:02:57
ldoop(½ð±Ò+1): 2010-10-21 20:03:08
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