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zyj8119

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%Ë«ÏßÐÔLANGMUIR¹«Ê½
%b1,b2ÊǵÚÒ»¸öLANGMUIR¹«Ê½µÄ³£Êý£¬b3,b4Êǵڶþ¸öLANGMUIR¹«Ê½µÄ³£Êý
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function  [p1,p2,x1]=langmuir(b1,b2,b3,b4,l,y1)
m=b1+b2;
n=b1*b2;
p=b3+b4;
q=b3*b4;
r=m*y1-p*y1+p;
s=2*m*y1-n*p*y1^2-p*y1+p;
t=m*y1-2*n*p*y1^2-q*p*(y1-1)^2;
u=n*p*y1^2;
x0=0.01;
f=r*x0^3-s*x0^2+t*x0+u;
g=3*r*x0^2-2*s*x0+t;
f1=subs(sym(f),findsym(sym(f)),x0);
f2=subs(sym(g),findsym(sym(g)),x0);
x1=x0-(f1/f2);
while((x1-x0)<1.0e-03)
end
p1=l*y1/x1;
p2=l*(1-y1)/(1-x1);
end
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zyj8119

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by zyj8119 at 2010-06-16 10:27:07:
Optimization terminated: first-order optimality is less than options.TolFun.
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7Â¥2010-06-16 10:27:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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change0618

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

·½ÕÉ´óʦ

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zyj8119(½ð±Ò+5):¶àл£¬³ÌÐòÕâÑùд¾Í¸ü¶ÌÁË¡£¡£¡£ 2010-06-16 09:26:31
robert2020(½ð±Ò+2):¶àлӦÖú£¡ÐÁ¿àÁË£¡ 2010-06-16 12:28:25
function  [p1,p2,x1]=langmuir(b1,b2,b3,b4,l,y1)
m=b1+b2;
n=b1*b2;
p=b3+b4;
q=b3*b4;
r=m*y1-p*y1+p;
s=2*m*y1-n*p*y1^2-p*y1+p;
t=m*y1-2*n*p*y1^2-q*p*(y1-1)^2;
u=n*p*y1^2;
x1=fsolve(@(x)r*x^3-s*x^2+t*x+u-(3*r*x^2-2*s*x+t),0.3);
p1=l*y1/x1;
p2=l*(1-y1)/(1-x1);
2Â¥2010-06-16 08:49:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zyj8119

ľ³æ (ÖøÃûдÊÖ)

ÔËÐгöÕâ¸ö´íÎó£º
>> [p1,p2,x1]=langmuir(3,4,6,8,1000,0.5)
Optimization terminated: first-order optimality is less than options.TolFun.

p1 =

  512.7881


p2 =

  2.0049e+004


x1 =

    0.9751
ºÃºÃѧϰ£¬ÌìÌìÏòÉÏ¡£
4Â¥2010-06-16 09:57:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

change0618

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

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zyj8119(½ð±Ò+5):¶àлÈÊÐÖµÄÖ¸µ¼£¬ÎÒÊÇÐÂÊÖ£¬ºÇºÇ¡£ 2010-06-16 14:36:28
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