newRPL: Angles revisited
04-01-2016, 05:48 PM
Post: #11
 Han Senior Member Posts: 1,810 Joined: Dec 2013
RE: newRPL: Angles revisited
(04-01-2016 05:33 PM)Helix Wrote:
(04-01-2016 12:50 AM)Claudio L. Wrote:  For example, ∡12° 360 / is no longer an angle

Why?
For me, 10°+10°+10° = 3x10° = 30°, and 30°/3 = 10°.
I think that an angle multiplied or divided by a constant (a real number) should be an angle.

My guess would be ambiguity in interpreting the real number -- is it a constant multiplier, or did the user intentionally leave off the ° but still wanted to actually have degrees. In the former, you have what is essentially the same as your examples; in the latter, you would be looking at fractions of a circle (as one possible interpretation). With addition, there is only one reasonable meaning of something like 30° + 3. The only thing you can really add to angle (or perhaps temperature) is a change in angle (temp), so there is no ambiguity.

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 Messages In This Thread newRPL: Angles revisited - Claudio L. - 03-31-2016, 06:13 PM RE: newRPL: Angles revisited - Han - 03-31-2016, 06:49 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 12:50 AM RE: newRPL: Angles revisited - Helix - 04-01-2016, 05:33 PM RE: newRPL: Angles revisited - Han - 04-01-2016 05:48 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 06:22 PM RE: newRPL: Angles revisited - Nigel (UK) - 04-01-2016, 06:27 PM RE: newRPL: Angles revisited - emece67 - 04-01-2016, 07:01 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 11:15 PM RE: newRPL: Angles revisited - emece67 - 04-01-2016, 11:46 PM RE: newRPL: Angles revisited - Nigel (UK) - 04-03-2016, 11:05 AM RE: newRPL: Angles revisited - Claudio L. - 04-04-2016, 12:04 AM RE: newRPL: Angles revisited - rprosperi - 03-31-2016, 06:54 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 12:55 AM RE: newRPL: Angles revisited - rprosperi - 04-01-2016, 02:10 AM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 03:47 PM RE: newRPL: Angles revisited - Guenter Schink - 04-01-2016, 09:58 PM RE: newRPL: Angles revisited - Nigel (UK) - 03-31-2016, 08:40 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 01:12 AM RE: newRPL: Angles revisited - Nigel (UK) - 04-01-2016, 06:20 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 06:43 PM RE: newRPL: Angles revisited - Claudio L. - 04-01-2016, 07:11 PM RE: newRPL: Angles revisited - SlideRule - 04-03-2016, 04:27 PM RE: newRPL: Angles revisited - Vtile - 04-03-2016, 08:12 PM RE: newRPL: Angles revisited - Claudio L. - 04-03-2016, 11:58 PM RE: newRPL: Angles revisited - Claudio L. - 04-04-2016, 11:52 AM RE: newRPL: Angles revisited - Claudio L. - 04-06-2016, 01:58 PM RE: newRPL: Angles revisited - Nigel (UK) - 04-07-2016, 01:55 PM RE: newRPL: Angles revisited - Claudio L. - 04-07-2016, 05:51 PM RE: newRPL: Angles revisited - Helix - 04-07-2016, 01:04 PM RE: newRPL: Angles revisited - Claudio L. - 04-07-2016, 01:35 PM RE: newRPL: Angles revisited - Francois Lanciault - 05-10-2016, 04:48 AM RE: newRPL: Angles revisited - Claudio L. - 05-10-2016, 02:52 PM

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