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x0=[0.0350 0.16565]; x=fsolve('mnsi',x0) ÒýÓÃmÎļþʱ±¨´íError: File: mnsi.m Line: 1 Column: 14 The expression to the left of the equals sign is not a valid target for an assignment. mÎļþfunction fx=mnsi(x) T=1700; a=[-45584.1,-39280.9,-10069.8,34484.37]; b=[28.50974,6.881164,2.113303,17.83834]; c=[0.5;0.5]; k=zeros(1,4); ÓÐʲôÎÊÌâ Âé·³°ïæ¿´¿´ |
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2Â¥2013-10-14 20:52:26
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function fx=mnsi(x) T=1700; a=[-45584.1,-39280.9,-10069.8,34484.37]; b=[28.50974,6.881164,2.113303,17.83834]; c=[0.5;0.5]; k=zeros(1,4); for i=1:1:4; k(i)=exp(a(i)/T+b(i)); end fx(1)=c(1)*x(1)- c(2)*x(2)+(3* c(1)- c(2))*k(1)*((x(1)^3)* x(2))+ (5* c(1)- 3*c(2))*k(2)*(x(1)^5)* (x(2))^3)+( (c(1)- c(2))*k(3)*(x(1)* x(2)+ (11* c(1)- 19*c(2))*k(4)*(x(1)^11)* (x(2))^19); fx(2)=x(1)+x(2)+ k(1)*((x(1)^3)* x(2)+ k(2)*(x(1)^5)* (x(2))^3)+ k(3)*(x(1)* x(2)+ k(4)*(x(1)^11)* (x(2))^19); Õâ¸öÊÇÈ«²¿µÄmÎļþ ÎÒ²»¶® ÐÂÊÖ¡£¡£¡£¡£¡£ |
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4Â¥2013-10-15 09:04:27
f2012
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Èç¹û·½±ãµÄ»° Äܲ»ÄÜ °ïÎÒ¿´Ï Õ⼸¸ö·½³Ì ÓÃʲô·½·¨½â±È½ÏºÃ N1+N2+N3+N4+N5+N6 =1 aN1-bN2+(3a-b)N3+(5a-3b)N4+(a-b)N5+(11a-19b)N6=0 N3=K1*( N2^3)*N1 N4=K2*( N1^5)*(N2^3) N5=K3*N1*N2 N6=K4* (N1^11)*(N2^19) lnK1=45584.0871/T-28.50974 lnK2=39280.9406/T-6.8812 lnK3=10069.7385/T-2.1133 lnK4=34484.3661/T-17.838 T ¿ÉÒÔÈÎÒ⸳ֵÇó N1 N2 a b ÖµÊÇÒÑÖªµÄa+b=1 ¿ÉÒÔËæÒ⸳ֵ |
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