[Maxima] Taylor expansion for a function of four variables??

[Julien Martin]

Hello,

I am seeking to expand in Taylor series the following function:

p(y+deltay,t+deltat,y',t') y' and t' being equal respectively to y + deltay
and t + deltat.

Can anyone please guide me as to how to use the taylor Maxima function?

Thanks in advance,

Julien.
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