Timeline for Accuracy of the formulas for angles between almost colinear vectors
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 14, 2015 at 0:36 | vote | accept | Algebraic Pavel | ||
| Feb 12, 2015 at 22:25 | comment | added | Algebraic Pavel | Ok I understand it now (at least from the "qualitative" point of view). As $\cos(\alpha)\approx 1$ the error of the inverse tangent formula is essentially determined by the error of the norm of the cross product which is of the order $\delta$. | |
| Feb 12, 2015 at 22:13 | comment | added | Algebraic Pavel | Thank you for the input. Although it still a bit puzzles me because the cosine is also involved in the second approach. | |
| Feb 12, 2015 at 20:53 | history | answered | Robert Israel | CC BY-SA 3.0 |