Help with the function 'mkpp' in a particular equations of motion

Hi,

I have a problem with the function 'mkpp', when I have as equation of motion an 'Asymmetric Shp-5 for reducing the vibrations'

Breaks=[0   Tany]
qshp(t)= L+H*[28*(t)^3-48*(t)^(7/2)+21*(t)^4];
%My great problem is 48*(t)^(7/2)

How can I write the Coefs of the 'mkpp'? Mostly this coeff { 48*(t)^(7/2) }

How can I have to resolve the equation ?

[KALYAN ACHARJYA]

Is the question is complete?

[Luca Ceriola]

Yes,

I don't know how to write the funciton 'mkpp', also if i know the Breaks, for equations like

y(t)=x^(8/2)+x^3+x+3000 % is an example,
% How could i write COEFS ??????????????????????

Perhaps, 'mkpp' is not the right function for solve this particular equation.

I think we could calculated it with an iterative process, but I don't know how analitically

Then, I don't know which is the function that works with equations like this.

I hope I was clear.

Thank you for your attention.

[Walter Roberson]

Use a change of variables t -> T^2 so that you are working with integer powers. Be careful though as it can introduce additional roots.

[Luca Ceriola]

thank you very much. It works!