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wangen994(½ð±Ò+2,VIP+0):¸øÇø³¤ÆÀ·Ö£¬ºÇºÇ 12-28 11:09
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3Â¥2009-12-16 20:09:37
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wangen994(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë½»Á÷ 12-28 10:55
wangen994(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë½»Á÷ 12-28 10:55
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Çó½âµÝÍÆ·½³Ì a[n], ÓÃRSolve[eqn, a[n], n] ¸ñʽÈçÏ RSolve[eqn, a[n], n] solves a recurrence equation for a[n]. ◼ RSolve[aa, a, ¡ a, aa[n], a[n], ¡ a, n] solves a system of recurrence equations. |
4Â¥2009-12-28 09:58:50
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wuguocheng(½ð±Ò+1,VIP+0):Õâ¸öÎÒÒ²»á, ÎҵĵÝÍÆ·½³ÌÀïÃæÓÐ΢·Ö. ÈçºÎÈ¥´¦Àí 12-28 10:16
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ÀýÈç eqn = y[x + 2] == ay[x + 1] + y[x]; RSolve[eqn, y[x], x] |
5Â¥2009-12-28 10:01:14
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wangen994(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë½»Á÷ 12-28 10:55
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