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Another incorrect use of the term 'function' due to the same reason that Elliptic Curve is not a function.

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LiuYusuf 2024-08-26 00:40:13 +08:00
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ch04_keys.adoc
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@ -777,7 +777,7 @@ results in smaller transactions, allowing more payments to be made in the same
block.
As we saw in the section <<public_key_derivation>>, a public key is a point [.keep-together]#(x, y)# on an
elliptic curve. Because the curve expresses a mathematical function, a
elliptic curve. Because the curve expresses a mathematical mapping, a
point on the curve represents a solution to the equation and, therefore,
if we know the _x_ coordinate, we can calculate the _y_ coordinate by
solving the equation [.keep-together]#y^2^ mod p = (x^3^ + 7) mod p.# That allows us to