On Mon, May 22, 2017 at 06:32:38PM -0400, Russell O'Connor wrote: > On May 22, 2017 23:05, "Peter Todd" <p...@petertodd.org> wrote: > > On Mon, May 22, 2017 at 03:05:49AM -0400, Russell O'Connor via bitcoin-dev > wrote: > > MerkleRoot := SHA256(SHA256(LeftRoot ⋅ RightRoot)) > > sha256Compress : Word256 × Word512 -> Word256 > > To be clear, what math operations do you mean by "⋅" and "×"? > > > By "⋅", I usually mean concatenation (though I also use it for function > composition in one instance). By "×", I mean the Cartesian product.
Cartesian product can mean a lot of things. What specifically do you mean by "cartesian product" here? -- https://petertodd.org 'peter'[:-1]@petertodd.org
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