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2Â¥2007-06-27 15:40:31
xuhuisheng001
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3Â¥2007-06-27 15:47:04
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ÓÃ0.168·¨Çó°É ÏÂÃæÊdzÌÐò£º Ö»ÓÐ0¡£618·¨Çó¼«ÖµµÄ³ÌÐò£º double 0618(double (*f)(double x),double start,double end,double eps) { double a,b,c,d; if(eps<0.0||end-start exit(1); } a=start; b=end; c=a+(b-a)*0.381966011; d=a+(b-a)*0.618033989; while(b-a>eps) { if((*f)(a)>(*f)(c) && (*f)(c)>(*f)(d)) { a=c; c=d; d=a+b-c; } else if((*f)(b)>(*f)(d) && (*f)(d)>(*f)(c)) { b=d; d=c; c=a+b-d; } else { a=c; b=d; c=a+(b-a)*0.381966011; d=a+(b-a)*0.618033989; } } return (a+b)/2; } |
4Â¥2007-06-27 15:55:02
ÂäÑ©
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5Â¥2007-06-27 20:34:08













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