If this point relates to modular arithmetic, then it needs to be calculated. In general, the formula for squaring or raising to another power is as follows: divide the x‑coordinate of the base point by the x‑coordinate of any point on the curve, then raise the result to the power of two (or another power), and then divide the x‑coordinate of the base point by the resulting value after exponentiation. For the y‑coordinate, the process is similar — just replace x with y.
Let's assume that this will work for the curve used in bitcoin. How will you perform such operations modulo P?
This won’t work for the Bitcoin curve. I’ve checked it.