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3Â¥: Originally posted by ½ªÓñÍú at 2013-01-14 07:08:23
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??? Integrate
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Error: Unbalanced or unexpected parenthesis or bracket....

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                       16 k - x + k x
          ArcTanh[------------------------]
                  Sqrt[k] Sqrt[31 + 225 k]
     -          (---------------------------------)           - 66  - t = 0
            a c Sqrt[k] Sqrt[31 + 225 k]
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function result = newfunction(X, beta)
k = beta(1);
a = beta(2);
x = X(1);
t = X(2);

result = Ç°ÃæÄǸö¹«Ê½


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X = [ 0, 0; 1, 0.0355; µÈµÈ]
Y = [0 ; 0 µÈµÈ]£¨ºÍXµÈ¸ß£©
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4Â¥2013-01-15 02:54:24
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xiegangmai: ½ð±Ò+2, лл²ÎÓë 2013-01-14 00:21:28
½ªÓñÍú: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2013-01-14 08:52:30
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Integrate[1/( a*c*((k - 1)*x^2 + 32*k*x + 31*k)), x]

                       16 k - x + k x
          ArcTanh[------------------------]
                  Sqrt[k] Sqrt[31 + 225 k]
             -(---------------------------------)           - 66  = t
            a c Sqrt[k] Sqrt[31 + 225 k]


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f(x_n) - t_n =0
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2Â¥2013-01-13 21:06:18
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½ªÓñÍú

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ÒýÓûØÌû:
2Â¥: Originally posted by ¶«Æ½Modelon at 2013-01-13 21:06:18
·ÖÀë΢·Ö·½³Ì±äÁ¿ÒÔºó£¬Èç¹ûÀÁµÃÓÃÅä·½·¨½â³ö΢·Ö·½³ÌµÄ»°£¬Åª¸ömathematica¿ÉÒÔÖ±½ÓÓýâÎö·¨½â
Integrate

                       16 k - x + k x
          ArcTanh
                  Sqrt Sqrt
         ...

ÎÒÊä½øÈ¥ºó£¬Ôõô³öÏÖÒÔÏÂÎÊÌâÁË£¿ÔÚ°ï½â¾öһϰÉ
??? Integrate[1/( a*c*((k - 1)*x^2 + 32*k*x + 31*k)), x]
             |
Error: Unbalanced or unexpected parenthesis or bracket.
3Â¥2013-01-14 14:08:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

½ªÓñÍú

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ÒýÓûØÌû:
4Â¥: Originally posted by ¶«Æ½Modelon at 2013-01-15 02:54:24
»ý·ÖÎÒÊÇÓÃMATHEMATICA×öµÄ£¬²»ÊÇmatlab¡£

½«
                       16 k - x + k x
          ArcTanh
                  Sqrt Sqrt
     -          (---------------------------------)           -  ...

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