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jinleisheng

[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖú matlab Ò»¸öÑ­»·ÎÊÌâ ÒÑÓÐ2È˲ÎÓë

a=0.2;b=0.2;c=5.7;
s=-c/(2*a)+sqrt(-b/a+(c/(2*a))^2);
>> for i=0:0.01:20
for j=0:0.01:20
f1=sym('(x-a-0.2*(exp(-i*x)-1)-0.2*(exp(-j*x)-1))*(-s+x*(x+a*s+c))+(x+a*s+c)');
f2=sym('(1+i*0.2*exp(-i*x)+j*0.2*exp(-j*x))*(-s+x*(x+a*s+c))+1+(x-a-0.2*(exp(-i1*x)-1)-0.2*(exp(-i2*x)-1))*(2*x+a*s+c)');
fun=inline(f1);
dfun=inline(f2);
x=manewton(fun,dfun,0.1,1e-5);
if real(x)<0
for k=1:1000
d(k)=i
d2(k)=j
end
end
end
end           ÒÔÉÏÊÇÎҵijÌÐò£¬ÎÒÄ¿µÄÊÇ ÈÃf1/f2ÖеÄi  j  ±äÁ¿Ñ­»·£¬´Ó¶øÊµÏÖinlineµÄÑ­»·£¬µ«ÊÇÕâÑù²»ÐС£Ë­ÄܰïÖúÎÒһϣ¬½â¾öinlineÃüÁîÖк¯Êýij¸ö±äÁ¿Ñ­»·µÄÎÊÌâ¡£ÏÈлÁË£¡£¡£¡
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ilovey

½ð³æ (СÓÐÃûÆø)

Êǽá¹û²»¶Ô£¬»¹ÊÇÔËÐдíÎó
2Â¥2010-05-24 23:52:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jinleisheng

ÒýÓûØÌû:
Originally posted by jinleisheng at 2010-05-24 11:29:38:
a=0.2;b=0.2;c=5.7;
s=-c/(2*a)+sqrt(-b/a+(c/(2*a))^2);
>> for i=0:0.01:20
for j=0:0.01:20
f1=sym('(x-a-0.2*(exp(-i*x)-1)-0.2*(exp(-j*x)-1))*(-s+x*(x+a*s+c))+(x+a*s+c)');
f2=sym('(1+i*0.2* ...

ÊÇÔËÐдíÎó
3Â¥2010-05-25 10:59:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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