# reverse secp256k1 formula

The reverse formula for secp256k1 is:
1. Start with the coordinates of the point P on the elliptic curve:
x = xP
y = yP
2. Calculate the modular inverse of xP, denoted as xP^-1:
xP^-1 ≡ xP^-1 (mod p)
3. Calculate the modular inverse of yP, denoted as yP^-1:
yP^-1 ≡ yP^-1 (mod p)
4. Use the formula to calculate the inverse of P:
P^-1 = (xP^-1, yP^-1)
5. P^-1 is the inverse of P on the secp256k1 curve.