Just another quick question about this part: The first term is ∂ℓ∂z9=∂(y−z9)2∂z9=2z9.
Shouldn’t this be: ∂(y−z9)2∂z9=−2(y−z9)?
You mentioned just after something about notation, but I wanted to understand a bit better in case I’m missing something
I believe you’re correct. (I haven’t thought through the full context, but that shouldn’t be necessary for that equation… I hope.) I’ve edited it. Thanks!
Just another quick question about this part: The first term is ∂ℓ∂z9=∂(y−z9)2∂z9=2z9.
Shouldn’t this be: ∂(y−z9)2∂z9=−2(y−z9)?
You mentioned just after something about notation, but I wanted to understand a bit better in case I’m missing something
I believe you’re correct. (I haven’t thought through the full context, but that shouldn’t be necessary for that equation… I hope.) I’ve edited it. Thanks!