Timeline for Why are angles dimensionless and quantities such as length not?
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| Jul 13, 2015 at 23:13 | comment | added | dmckee --- ex-moderator kitten | "but rather a dimensionless unit - accounted for throughout a calculation." I.e. keep writing $\mathrm{rad}$ whenever you write an angle. This is what I tell my students in intro courses to do just to help them keep things straight, and because it delivers a consistent message on units throughout that first course. | |
| Jul 12, 2015 at 21:56 | comment | added | docscience | @RishavKundu It doesn't need to make sense at point B. Just as the units of states in a state space system don't need to make sense. It's the output coupling matrix that makes sense out of the states as physical outputs. Physical models expressed in state space can have many different internal realizations. | |
| Jul 12, 2015 at 17:40 | comment | added | xrisk | Yes, but at point B, the nonlinear function doesn't make much sense, does it? | |
| Jul 12, 2015 at 17:36 | history | edited | docscience | CC BY-SA 3.0 |
grammar fixed
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| Jul 12, 2015 at 17:30 | history | answered | docscience | CC BY-SA 3.0 |