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Question: Convert to explicit first order

Question:Convert to explicit first order

shakuntala 25 Maple 13
dsolve differential-equations
October 02 2017
0


 

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sol1 := dsolve([diff(diff(diff(f(eta), eta), eta), eta)+f(eta)*(diff(diff(f(eta), eta), eta))-(diff(f(eta), eta))^2 = 0, diff(diff(diff(g(eta), eta), eta), eta)+f(eta)*(diff(diff(g(eta), eta), eta))+2*g(eta)*(diff(diff(f(eta), eta), eta))-3*(diff(g(eta), eta))*(diff(f(eta), eta)) = 0, (diff(diff(g(eta), eta), eta))*(diff(diff(g(eta), eta), eta))-g(eta)*(diff(diff(diff(g(eta), eta), eta), eta))*f(0) = 1, (D(f))(0) = 1, (D(f))(5) = 0, g(0) = 1, (D(g))(0) = -1, (D(g))(5) = 0], numeric, method = bvp); plots[odeplot](sol1, color = red)

Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system

  

 
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 In this link i attache the code , which is working on this Download Three_euqtions.mw and i got an error which is i couldnot understand. So, kindly can you help on this ??
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