Shouldn't Celcius be Celsius ???
- It's been spelled both ways, along with other variations and alternatives (as noted in the REXX example). -- Gerard Schildberger (talk) 17:35, 13 August 2013 (UTC)
- I don't keep track where I saw the references (I was doing some deep research on the history of old centigrade thermometers and came across the older names for it). [Centesimal degree was mentioned in the Wikipedia article Celsius.] I just support the alternate spellings, misspelled or not. If some number of people use the misspellings, my program accepts it in an attempt to support the (named or misspelled) temperature conversions. This shouldn't be construed as an endorsement, nor a tacit approval of the misspelling(s). -- Gerard Schildberger (talk) 22:32, 13 August 2013 (UTC)
- My sincere thanks to Grondilu who corrected the task description. I do NOT suggest that you support another misspelling you find with Google:
Celcius to Farenheit Farenheit to Celcius Farenheit Celsius Celsius Farenheit Farenheit to Celsius Celcius to Farenheit Conversion Celsius to Farenheit Convert Farenheit to Celcius
- Google has a different purpose; when somebody enters a word (or words) to be found, Google doesn't know (for sure) if the word is misspelled or not, as a matter of fact, it will find entries for misspelled words, and of course, things that aren't words at all. Google's purpose is to assist in finding stuff. The purpose of (my) temperature conversion is to convert a unit (or units) of temperature scales to another scale (actually, a set of temperature scales), and if the user enters (misspelled) celcius, I know what he meant to enter. Google can't do that for certain, so it prompts the user and may go with the correct spelling (which is a judgement call, for it may be that the misspelled word is what the user wanted to find); which is what my program does (goes with correct spelling). Google, of course, allows the user to force Google to use the original word (or the correct spelled word, I suspect there is some heuristics going on), but that isn't applicable for this application (program) and would be waste of the user's time to force re-entering of the temperature scale, and without a hint, the user wouldn't necessarily know the correct spelling (unless the user knew it was a typo). If a user specified celcius, there isn't a need or reason to reject the request, and force a correction. The conversion program isn't the grammar police, just a conversion tool. I don't find fault with a program that rejects only but the correct spellings, I just feel it is less useful than a program that is more forgiving, and does, in effect, do what I mean (DWIM). As I understood the task's description, it is to convert value(s) from some temperature scale(s) to another set of scales. That it allows a user's feeble attempts at spelling is just a feature of the program. The fact that celcius is a common misspelling, it means that many people must be using it. Note that no misspelled words are shown in the (conversion) output except possibly for the input echo, the preferred spelling is used. -- Gerard Schildberger (talk) 07:40, 14 August 2013 (UTC)
- How about this then for my input of tc 10 Celsius to the modified program (Upper, as usual):
------------------------------------------- 10 Celsius 10 Celcius 135 Delisle etc.
- None of my dictionaries have celcius. I asked on my favorite English forum and got these responses:
von Walter (AT), today, 21:52 Spam? ... is Celcius a valid / used alternate spelling of Celsius or just a misspelling in some Wikipedia articles and elsewhere? Thanks in advance Walter Antwort: Misspelling. #720341 von Joanne (GB/AT), today, 21:57 Spam? ... http://www.onelook.com/?w=celcius&ls=a - the alleged entries either come up with no entry found or redirect you to celsius - apart from the wiki page for the rap album Celcius, and we all know that rappers can't spell ;-) Antwort: Wikipedia(SV): Anders_Celsius #720343 von Dracs (DE), today, 22:10 Spam? ...
- No, that's not quite true. Andres Celsius invented/created/defined a temperature scale; it was called centigrade (and other names) for two centuries or so. For various reasons, around 1948 the name centigrade was replaced with Celsius by some international standards. I know I was taught to use centigrade in grade school (USA), but by the time I went to college, Celsius was in use. -- Gerard Schildberger (talk) 22:32, 13 August 2013 (UTC)
Well, if the Oxford Dictionary says it's a common misspelling then that is good enough for me and we should correct it in the task description and urge others to use the correct spelling. (It even goes so far as to check the spelling in other languages). --Paddy3118 (talk) 05:20, 14 August 2013 (UTC)
- Thanks Paddy. You mean 'computer languages' :-) and you know the answer to my wp question!?! (see above) --Walterpachl (talk) 05:28, 14 August 2013 (UTC)
temperatures below absolute zero
Another chain (?) of thought: Shouldn't -3K (and other out of range temperatures) be rejected ??
-------------------------------------------------- -3k -276.15 Celcius 564.225 Delisle--Walterpachl (talk) 09:09, 14 August 2013 (UTC)
- In a news article [R&D Magazine Webcast], it's possible to have temperatures below absolute zero according to physicists at the Ludwig-Maximilians University Munich and the Max Planck Institute of Quantum Optics in Garching. An interesting article concerning (among other things) the inversion of energy due to something called the Boltzmann distribution. -- Gerard Schildberger (talk) 14:58, 14 August 2013 (UTC)
- I opened the link you gave but couldn't find anything there.
- I did find this link though (learning something every day) http://www.livescience.com/25959-atoms-colder-than-absolute-zero.html and a sentence therein: "The temperatures we achieved are negative nanokelvin," Schneider told LiveScience. Maybe they'll never reach minus 3 K --Walterpachl (talk) 20:48, 14 August 2013 (UTC)
- As an aside, I choose to not check (in the REXX example) for those kinds of errors(?) (negative kelvins) as it detracts from the conversion part of the process. However, the presence of negative kelvins isn't for a fact, an error --- well, maybe yes, maybe no, could be, or might not be. The more error checking that is done, the more "clutter" or chaff in the program. In a complete working example, yes, that error check and others would be proper; ya can never to too careful when accepting data from the command line (C.L.) or via passed arguments/parameters. -- Gerard Schildberger (talk) 21:44, 2 December 2014 (UTC)
- Also, there appears (as I understand it) an upper bound to temperatures, probably 1 (one) Planck. Of what little I know(?) about that temperature is, at 1º Planck, the laws of physics (or some of them?) seem to (start) breaking down. 1º Planck = 1.416833e+32 kelvins. If that can of worms is opened, I fear for us, the hoi polloi programmers (and amateur/wanna-be/armchair scientists/physicists). -- Gerard Schildberger (talk) 22:23, 2 December 2014 (UTC)
I think it would be nice to also have any-to-any conversion,
i.e. also accept input-values in Celsius, Fahrenheit etc.
and convert to all the other temperature-bases. --Hajo (talk) 13:37, 2 December 2014 (UTC
- An any-to-all is already done with the REXX example. -- Gerard Schildberger (talk) 21:31, 2 December 2014 (UTC)
- An any-to-any has been written (in REXX) and
will behas been posted to Rosetta Code soon. -- Gerard Schildberger (talk) 21:31, 2 December 2014 (UTC)) --updated-- Gerard Schildberger (talk) 01:05, 3 December 2014 (UTC)
spelling of kelvins
From the USMA (United States Metric Association):
The kelvin (K) temperature scale is an extension of the degree Celsius scale down to absolute zero, a hypothetical temperature characterized by a complete absence of heat energy. Temperatures on this scale are called kelvins, NOT degrees kelvin, kelvin is not capitalized, and the symbol (capital K) stands alone with no degree symbol. [The official name was changed to "kelvin" and symbol "K" by the 13th General Conference on Weights and Measures (CGPM) in 1967.]
In light of this, perhaps the author of this Rosetta Code task (or anybody) would like to correct the spelling and/or capitalization of the task's wording. -- Gerard Schildberger (talk) 01:33, 3 December 2014 (UTC)