Where is the equation? or do you want help with something else?
PS. If you're looking for the VP method for higher order DE's, Boyce-DiPrima is a good source.
I am new to this forum. I stumbled upon this forum while searching for the solution of my Maths assignment.
My Assignment reads:
"Solve by method of variation of parameters a 3rd order delay differential equation".
After days of search online i still have not been able to find its solution. The closest i got is solving 1st order DDEs by variation of parameters. (thru google books)
Please can someone point me in the right direction?? I would really appreaciate any help.
Thanks for reading.