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You can’t add or subtract units, so it’s not a relevant question. The dash gets used for many things. It is also used to hyphenate words, but people don’t ask h
by coder543 3y ago
You can’t add or subtract units, so it’s not a relevant question. The dash gets used for many things. It is also used to hyphenate words, but people don’t ask how you can subtract two words.
> If you're going to be pedantic, at least write it properly.
I didn’t write it. I’m just explaining a commonly-used convention since you seem unfamiliar with it.
- vel0city 3y agoIf using the - symbol was commonly meaning multiply, wouldn't Google say 4? Using - to mean multiplication is absolutely not common parlance.
- coder543 3y agoNo, because I’m only talking about unit notation, just like hyphenated words do not mean subtraction of the words. Why would Google follow unit notation rules for something that is completely irrelevant to unit notation? If we’re going to be maximally pedantic, you will notice that “Wh” is also wrong, and should instead be “W h” with a space. That’s what NIST says the standard is. Why are you writing it incorrectly? It’s almost as if different groups of people have different notational conventions. I already agreed it is nonstandard, but your notation is also questionable according to the standards for unit multiplication. It just happens to be a commonly accepted convention. Here is an example of Wolfram Alpha handling this dash unit notation: https://www.wolframalpha.com/input?i=%283W-h%29%2F%281h%29+in+watts https://www.wolframalpha.com/input?i=%283W-h%29%2F%281h%29+i... I guess someone should tell Wolfram Alpha they forgot to “subtract the units”, whatever that means.