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muqiuyan

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Originally posted by tjyl at 2010-06-02 18:44:44:
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double fsimp(double (*f)(double ),double a, double b, double eps) /  /*aΪ»ý·Ö ...

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double fsimp(double (*f)(double ),double a, double b, double eps, int func_index)
{¡­¡­..
¡­¡­¡­.
t1=((*f)(a,func_index)+(*f)(b,func_index))*h/2.0;
¡­¡­¡­.
p=p+(*f)(double ,func_index);  
¡­¡­¡­.
}


double f(double £¿, int func_index)    //  Õâ¸öµØ·½ÈçºÎÇø·Ö»ý·Ö±äÁ¿ÄØ£¬ÏÂÃæÔõô¶¨Òå¡£
{¡­¡­.
¡­¡­¡­.
    swtich (func_index)
    {
    case 1:
¼ÆËãy1µÄ±í´ïʽ£»     //µÚÒ»¸öº¯Êý   
        return (y1);
        break;
   
case 2:
¼ÆËãy2µÄ±í´ïʽ£»         //µÚ¶þ¸öº¯Êý
        return (y2);      
break;
    }
}

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fsimp(r,a,b,eps,1)        //»ý·ÖµÚÒ»¸öº¯Êý,ÆäÖÐrΪµÚÒ»¸öº¯ÊýµÄ»ý·Ö±äÁ¿
fsimp(T,a,b,eps,2)          //»ý·ÖµÚ¶þ¸öº¯Êý£¬ÆäÖÐTΪµÚ¶þ¸öº¯ÊýµÄ»ý·Ö±äÁ¿
11Â¥2010-06-03 10:56:34
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tjyl

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resonant(½ð±Ò+3):ר¼ÒÐÁ¿àÁË£»¡ª£© 2010-06-04 19:06:53
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#include
double plus(double (*f) (double), double a, double b);
double F1(double);
double F2(double);
int main()
{
    double x1, x2;
    double y1, y2;
    x1 = 0.5;
    x2 = 1.5;
    y1 = plus(F1, x1, x2);
    y2 = plus(F2, x1, x2);
    printf("plus of F1=%0.6f\n", y1);
    printf("plus of F2=%0.6f\n", y2);
    return 0;
}

double plus(double (*f) (double), double x1, double x2)
{
    return (f(x1) + f(x2));
}

double F1(double x)
{
    return x * x;
}

double F2(double x)
{
    return x;
}
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ÒýÓûØÌû:
Originally posted by muqiuyan at 2010-06-03 10:56:34:







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double fsimp(double (*f)(double ),double a, d ...

[ Last edited by tjyl on 2010-6-3 at 12:39 ]
12Â¥2010-06-03 12:36:35
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muqiuyan

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by tjyl at 2010-06-03 12:36:35:
ÎÒÒ²²»ÖªµÀÊÇÎÒûÓÐŪÃ÷°×ÄãµÄÒâͼ»¹ÊÇÄãûÓÐÀí½âÎÒ½¨ÒéÓú¯ÊýÖ¸ÕëµÄÓÃÒâ¡£
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#include
double plus(double (*f) (double), double a, double b);
...

лл¡£ÄãËù˵µÄºÍÎÒµÄÎÊÌ⻹ÊÇÓÐЩ²»Í¬¡£ÎÒÒªÓÃÒ»¸öÇó»ý·ÖµÄ×Ó³ÌÐò¼ÆËãÁ½¸ö»ý·Ö¡£ÔÚÇó»ý·ÖµÄ×Ó³ÌÐòÖйØÓÚ»ý·Öº¯Êý£¬»ý·Ö±äÁ¿µÄµØ·½ÒªÄܵ÷ÓÃÁ½¸ö±»»ýº¯Êý¡£±»»ýº¯Êý×Ó³ÌÐòÀïÓÐÇø·ÖÁ½¸öº¯Êý£¬¼°¸÷×ԵıäÁ¿¡£
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13Â¥2010-06-03 17:04:34
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hanyy1988

ľ³æ (ÕýʽдÊÖ)

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muqiuyan(½ð±Ò+1):лл²ÎÓë
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14Â¥2010-06-03 22:11:55
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muqiuyan

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by hanyy1988 at 2010-06-03 22:11:55:
ºÇºÇ£¬¸Ð¾õ»¹ÊÇÓú¯ÊýÖ¸ÕëµÄ£¬ÕâÑù±È½ÏÄÜÁ˽âÇå³þ£¡

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15Â¥2010-06-04 08:54:10
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tjyl

½ð³æ (ÕýʽдÊÖ)

¡ï ¡ï
resonant(½ð±Ò+1):лл½øÒ»²½Ó¦´ð¡£ 2010-06-04 19:07:27
ÓàÔó³É(½ð±Ò+1):ÐÁ¿àÁË£¬Èç¹ûÓÐʱ¼äµÄ»°¿É·ñ¸øÐÂÊÖÔÙÏêϸ½²½âһϣ¬ÐÁ¿àÁË£¡ 2010-06-08 23:19:33
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Originally posted by muqiuyan at 2010-06-04 08:54:10:


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