On 10/8/2013 9:23 AM, Marshall, John wrote:
substitute pitch+dp for pitch, roll+dr for roll, heave+dh for heave.
then expand in a taylor series with respect to the parameters dp, dr,
dh around the point pitch,roll,heave.
This will give you something that looks E1*dp +E2*dr +E3*dh + E12*dp*dr
+ E23*dr*dh + E13*dp*dh + ...
I suggest you pick smaller names for variables.
RJF
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