-snip-
I think I understand.
So, I see that the uncompressed WIF private key has a direct relationship with the uncompressed master public key. And it works in the same way between the compressed WIF private key and the compressed master public key.
Good,
But since you're pertaining to a single private key, just drop the "
master" in its public key pair.
Because that's a term used to define the public key pair of the "
master private key" which is where the child extended private/public keys and private/public keys of an HD wallet are based from.
The "
m" in the derivation path (
e.g. m/44'/0'/0').
And take note that only the WIF format of the private key has compressed and uncompressed form.
The private key itself in its base form is just a number.