polynomial transformation in python
Create a burner variable, store x-tau into it, and feed that into your function
I'm trying to shift a polynomial. I'm currently using numpy.poly1d() to make a quadratic equation.

example: 2x^2 + 3x +4

but I need to shift the function by tau, such that 

2(x-tau)^2 + 3(x-tau) + 4

Tau is a value that will change base on some other variables in my code.