I wouldn't think that would be copyrightable, per se. Trademarkable, possibly(?), but that's a whole different thing. Anyway, it seems he didn't. There's a lot of misunderstanding about copyright. Copyright actually exists the minute something's written/created. What most people refer to as "copyrighting something" is actually no more than registering the copyright in a central place, so as to have evidence of the existence of copyright as from the date specified in the registration document (and there's no copyright in names and titles). My guess (but I'm no lawyer) is that the name of a technical indicator wouldn't be trademarkable anyway.
No, Seriously there's so much math out there and all we got is RSI and bogus hand drawn trendlines ? LOL. Hedgies must be laughing their balls off.
ROC is legit, the maths are sound but very simple. dp/P * 100. It is still lagging , could be a lot better with more advanced maths. Any other indicators you guys want me to comment on ?