Anonymous user
Talk:Averages/Mean angle: Difference between revisions
m
→Accuracy: noted equivalent set of angles. -- ~~~~
(→Accuracy: added comments about amplitute of zero, any angle... and the use of exact values instead of near values for ATAN2. -- ~~~~) |
m (→Accuracy: noted equivalent set of angles. -- ~~~~) |
||
Line 22:
:::: (Regarding an amplitude of 0, angle returned is of no import) --- yes, I noticed that when the REXX trig functions used short-circuiting and returned exact values instead of near values, this made a significant difference on how '''ATAN2''' ''interpreted'' the results, as it uses the sign of the arguments to figure out what quadrant it's in, and '''-8.154E-61''' (for ATAN2) is much different than zero, albeit a very small difference from zero. -- [[User:Gerard Schildberger|Gerard Schildberger]] 20:47, 23 July 2012 (UTC)
:::: Also note that '''[90, 180, 270, 360]''' is the same as '''[-270, -180, -90, 0]'''. -- [[User:Gerard Schildberger|Gerard Schildberger]] 20:51, 23 July 2012 (UTC)
| |||