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shakuntala

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8 years, 279 days
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Convert to explicit first order...

shakuntala 25 Maple 13
dsolve differential-equations
October 02 2017
1 3


 

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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 ??

boundary conditions...

shakuntala 25 Maple 13
dsolve numeric differential-equations
June 23 2017
1 0

 

the program shows that the error please verify it sirprogram11.mw

Boundary condition...

shakuntala 25 Maple 13
differential-equations
May 25 2017
0 1

 

Dear sir,

in the program boundary conditions D(f)(0)=0 doesn't showing result but when use d(f)(0)=1 it will execute, why is this can you explain this ?program.mw
 

intial value is not converging...

shakuntala 25 Maple 13
ode differential-equation dsolve
May 04 2017
0 1

Dear please check once it showing an error program.mw as intial value is not conververging

Fourth order problem showing use midpoin...

shakuntala 25 Maple 13
ode dsolve numeric
May 02 2017
1 0

Dear sir,

I tried to solve a fourth order problem. But I got the error message as better to use midpoint method. Can I know what is midpoint method and here I uploading the problem please verify it if I did anything mistake?program.mw

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