[Symbolic toolbox] Explicit solution can not be found
in [Matlab]
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From: Martin on 25 Mar 2010 08:53 Dear group, I try to solve a problem using the symbolic toolbox of matlab. the site version is 2009b. While a similar example with less equations is solved properly, the code below exits with the error: %%%% Warning: Explicit solution could not be found. > In solve at 81 In rodney at 8 S = [ empty sym ] %%%% I know that this was a common problem in the old MuPad versions, but since I have one example working, I wonder what is wrong with this one. Could someone please have a look at the code, it might be something obviously wrong with it and I just do not see it in the moment... Best Regards %%%Code%%% clear all syms h3p h2p hp p c coh cp chp ch2p... chp2s m mp moh mhp mh2p h oh ct... pt mt ksp ka kb kc kd ke kf kg kh ki kj kk kl; S = solve('ka=h2p*h/h3p',... 'kb=hp*h/h2p',... 'kc=p*h/hp',... 'kd=cp/c/p',... 'ke=coh/c/oh',... 'kf=chp/c/hp',... 'kg=ch2p/c/h2p',... 'kh=oh*h',... 'ki=mp/m/p',... 'kj=moh/m/oh',... 'kk=mhp/m/hp',... 'kl=mh2p/mhp/m',... 'ksp=c*hp',... 'ct=c+cp+coh+chp+ch2p+chp2s',... 'pt=h3p+h2p+hp+p+cp+chp+ch2p+chp2s+mp+mhp+mh2p',... 'mt=m+mp+moh+mhp+mh2p',... 'h=h2p+2*hp+3*p+oh+cp+mp-2*c-2*m-coh-moh-ch2p-mh2p',... 'h3p,h2p,hp,p,c,coh,cp,chp,ch2p,chp2s,m,mp,moh,mhp,mh2p,h,oh') %%%Code%End%%% |