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Correct title is "Fitts's law" as it is named after Paul Fitts.
by longwave 11y ago
Correct title is "Fitts's law" as it is named after Paul Fitts.
- VeejayRampay 11y agoIt'd be Fitts' Law then, wouldn't it?
- extra88 11y agoThe apostrophe comes at the very end only when the s has been added to a word to make it plural. You don't add an s to make a word plural and another s to make it possessive. If you write about the wealth of Donald Trump, it's "Trump's money" but the wealth of the Trump family (i.e. multiple people) it's "Trumps' money." There is no singular "Fitt" so Fitts's Law is correct, same as "Laura Poitras's films." The apostrophe also comes at the very end when "es" is added to make a word plural, e.g. "fishes' spawning ground."
- VeejayRampay 11y agoThanks for the explanation. As an ESL English speaker, this has a tendency to get me confused.
- oneeyedpigeon 11y agoEither is valid; "Fitt's" is absolutely wrong, though.
- deleted 11y ago[deleted]
- mavhc 11y agoThere's no rules, but for me it depends how you pronounce it, if you say Fitts then it's Fitts', if you say Fitts-es it's Fitts's
- stevetrewick 11y agoWas about to post 'there are so rules!' because my SO's design students often claim this is true of apostrophe use in general resulting in much gnashing of teeth, but I checked and stone me if you aren't right in this particular case. Rules 1b and 1c http://m.grammarbook.com/punctuation-rules/apostrophes.aspx http://m.grammarbook.com/punctuation-rules/apostrophes.aspx