Co-efficient of the function

Can someone please help me understand this equation?

This function is associated with polynomial regression. When we give time-dependent data as input to the model i.e., data(t), it tries to fit the data according to this function.
Eg. If we consider n=1 i.e., polynomial regression of degree 1, then the function becomes:
data(t) = C1*t + C0 (of the form y=mx+c)
Here, the Cs are some constants, “n” is the degree, and “t” is time.

If you want to have a deeper understanding of the math behind polynomial regression, here is a link you can refer to:

Hope it helps.

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