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V1.2 equation notation error

Open da5nsy opened this issue 4 years ago • 4 comments

Hi Ella,

Forgive me if this is my misunderstanding (quite likely) but I think the sum notation at the end of V1.2 should have i=1 at the bottom rather than i=0

da5nsy avatar Mar 24 '21 01:03 da5nsy

It's yet another symptom of the Python disease!

texadactyl avatar Mar 24 '21 15:03 texadactyl

It's yet another symptom of the Python disease!

That was my first thought too! I'm not a mathematician though and so it's unclear to me if it is also an additional normal way to write it out.

Either way - it's a minor thing that doesn't affect the readability. I just thought I'd point it out as a note in case this video ever gets re-recorded 😄

da5nsy avatar Mar 24 '21 15:03 da5nsy

@da5nsy Except in unusual circumstances, a sequence or a series is generally started with i=1 in Mathematics (countable integers). However, my previous comment was in jest. As you said, readability is not at all impacted.

texadactyl avatar Mar 25 '21 14:03 texadactyl

Ahh that's interesting, I do tend to think about all indexing as zero-based so it syncs with code. You're right though that this isn't normal math convention and more importantly it doesn't sync with the figure that shows neurons starting with 1. Thanks!

ebatty avatar Mar 25 '21 14:03 ebatty