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integers or degrees is necessary to impart generality to this mode or procedure. "Integers when multiplied by seconds make seconds, when multiplied by thirds make thirds" (fol. 62, 76). It is possible that
Peletier is the originator of the ° for degrees. But nowhere in this book have I been able to find the modern angular notation ° ' " used in writing angles. The ° is used only in multiplication.
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I wouldn't argue about it or care one way or the other. But what about the case when the temperature scale is omitted (which is very common)? Should I write "98.6 °" with a space? This seems very odd to me. If the style "98.6° C" is truly out of favor now, then IMHO the style with no space at all should be adopted: "98.6°C" or, if the scale is omitted: "98.6°".
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Fahrenheit and
Celsius on their temperature scales, in the 1720s to 1740s, also do not use the symbol. It may still be that there are early uses pre-1700 that elude us, but so far we can state with some confidence that the symbol wasn't in any widespread use before 1740, and that it was used by Cavendish in the 1770s. --
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The article says that the convention of the BIPM and the U.S. Government
Printing Office is that there should be a space between number and degree symbol. This seems to be a trifling matter if the temperature scale (C or F) is present, that is, if they want me to write "98.6 °C" instead of "98.6° C",
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I have my doubts. If you look at the symbols for minutes and seconds (and one sixtieth of a second is a 'third'), they are just the roman numerals for 1, 2, 3 etc. It seems more credible that a degree symbol is just a small raised zero. What we need here is some evidence of when the degree symbol was
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The source for the supposed origin of the symbol we used was spurious. I have been reduced to looking for early uses. The earliest one I have found so far dates to 1776. It is also notable that
Copernicus in 1543 has many tables with angles but never uses the symbol, and the original publications by
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and vectors between them. That is, there is a distinction between the temperature at which water boils, 100 °C, and the temperature difference between 50 °C and 150 °C, also written 100 °C. The same is true of points in space versus displacements and between moments in time and durations in time. It
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This is the first modern appearance that I have found of ° for integra or “degrees.” It is explained that the denomination of the product of two such denominate numbers is obtained by combining the denominations of the factors; minutes times seconds give thirds, because 1+2=3. The denomination ° for
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The first modern appearance of the degree symbol ° Cajori found is in the revised 1569 edition of Gemma
Frisius, Arithmeticae practicae moethodus facilis by Gemma Frisius (1508-1555), although the symbol appears in the Appendix on astronomical fractions due to Jacques Peletier (1517-1582) and dated
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I'm a little confused by this-- what is the purpose and benefit of referencing UCAR style standards? UCAR is not some sort of federal body managing all atmospheric research in the nation, nor is it a standards-setting body of any kind. It's just a research organization with one research "center"
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I don't think there is such a thing as "mac input". OS X has a legion of keyboard layouts, and some of them probably place the symbol at alt+K. "Press this or that key" instructions refer to keyboard layouts, not operating systems, and I do not think it is the job of a
Knowledge article to tell
406:(NCAR - two locations), and a manager of contracts and grants. If this is an appeal to authority on proper usage, UCAR is not such an authority, and if this is presented merely as an example of typical use in the professional field, there isn't much reason to choose UCAR over, say, the
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I was taught that the difference between 70 °C and 100 °C was NOT 30 degrees
Celsius (30 °C), but 30 Celsius degrees (30 C°). That is to say, one is an actual temperature, whereas the other is a distance between two different temperatures. Of course, this applies for °F/F° too.
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Freemasons and derivative organizations use the degree symbol to denote the degrees belonging to their orders. Thus, a 33rd degree mason may sign his name: Brother John Doe, 33°. Should we include that in this article? --Moly 17:06, 23 February 2009 (UTC)
489:. The form of words agreed (though I hate the weasel-wording implicit in passive voice – it begs the question "says who") suggest you should write something along the lines of "the earliest recorded use found to date is that by Cavendish in 1770". --
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seems that historically the degree symbol tends to be used with relative values such as temperature and angles, although that usage isn't strict.
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This is also the practice of the
University Corporation for Atmospheric Research, which operates the National Center for Atmospheric Research.
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I totally agree. Someone should bring this up. And IMHO, "98.6° C" is the way to go and makes the most sense, actually. --
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This firmly suggests that the symbol represents a raised zero, and I shall edit the text accordingly.
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I know that as of OS X 10.4.11, the ˚ symbol can be input using ALT+K. This should be referenced.
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on
Knowledge. If you would like to participate, please visit the project page, where you can join
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Are there any systems in which this usage is strict? That is, where 300 K + (–100 °K) = 200 K?
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This comment of 6 August 2008 and correction of 25 August 2008 added by Thomas.Hedden
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and change it, provided you can find a suitable citation. ----
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I agree with that fact. I read it in my
Astronomy textbook.
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people about the keyboard layout they may be using. --
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