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function[c,err,yc]=bisect(f,a,b,delta) % Input - f is the function input as a string 'f' % - a and b are the left and right endpoints % - delta is the tolerance % Output - c is the zero % - yc = f(c) % - err is the error estimate for c ya = feval(f,a); yb = feval(f,b); if ya * yb > 0, end max1 = 1+ round((log(b-a)-log(delta))/log(2)); for k =1:max1 c =(a+b)/2; yc = feval(f,c); if yc==0; a=c; b=c; elseif yb * yc > 0 b=c; yb=yc; else a=c; ya=yc; end if b - a < delta, break, end end c=(a+b)/2; err=abs(b-a); yc=feval(f,c); % Çóº¯ÊýÔÚc´¦µÄº¯ÊýÖµ for T=200:10:300 K = exp(-9.3932+3204.71/T+0.835931*log(T)... +2.35267*10^-3*T-1.8736*10^-6*T^2+5.1606*10^-10*T^3) f=inline('(4*K-1)*x^2-8*K*x+4*K'); bisect(f,0,1,10^-5) end Ö÷³ÌÐòµ÷Óú¯Êý³ö´í |
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yuyi2009
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zhg19
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yuyi2009
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