Trouble in solving ordinary differential equation,why lack of Initial conditions? THANK YOU VERY MUCH!

[ptc-5065540]

This is an ordinary differential equation,why "g" lack of Initial conditions?

Who can help me solve this problem ? Thank you very much!

[AlanStevens]

Odesolve doesn't like initial conditions specified in the form g''(3)-f''(3)=0. However, since it is clear your functions must be 4th order polynomials you can solve for them as in the attached.

Alan

[AlanStevens · Accepted solution]

Here is a slightly neater way of generating f(x) and g(x).

Alan

[ptc-5065540]

Thank you very much Alan ! You did me a big favour ,you are so warmhearted !