• Rho-theta is a term used in aviation navigation for a location method (or even a group of locating methods) based on the measurement of coordinates (direction...
    2 KB (164 words) - 15:57, 13 April 2022
  • {\displaystyle s(\rho ,{\hat {\rho }})=KL(\rho ||{\hat {\rho }})=\rho \log {\frac {\rho }{\hat {\rho }}}+(1-\rho )\log {\frac {1-\rho }{1-{\hat {\rho }}}}} or...
    43 KB (5,547 words) - 14:21, 16 August 2024
  • Thumbnail for Airspeed
    moving through the air. In conjunction with winds aloft it is used for navigation. Equivalent airspeed (EAS) is true airspeed times root density ratio....
    14 KB (1,857 words) - 21:59, 8 February 2024
  • Thumbnail for Sphere
    {\begin{aligned}x&=x_{0}+r\sin \theta \;\cos \varphi \\y&=y_{0}+r\sin \theta \;\sin \varphi \\z&=z_{0}+r\cos \theta \,\end{aligned}}} The symbols used...
    41 KB (5,328 words) - 17:48, 16 August 2024
  • Thumbnail for Decca Navigator System
    determined their positions more precisely but would not have suffered from the rho-theta position errors inherent in VOR/DME. Other chains were established in...
    30 KB (4,323 words) - 00:01, 13 January 2024
  • Thumbnail for Orbit
    {\boldsymbol {\theta }}}&=-\cos(\theta ){\dot {\theta }}{\hat {\mathbf {x} }}-\sin(\theta ){\dot {\theta }}{\hat {\mathbf {y} }}=-{\dot {\theta }}{\hat {\mathbf...
    57 KB (8,170 words) - 14:39, 18 July 2024
  • Thumbnail for Angular momentum
    π 2 ρ f r 5 {\displaystyle L={\frac {16}{15}}\pi ^{2}\rho fr^{5}} where ρ {\displaystyle \rho } is the sphere's density, f {\displaystyle f} is the frequency...
    93 KB (13,467 words) - 00:23, 13 August 2024
  • Thumbnail for Magnetohydrodynamics
    {\frac {\omega }{k}}=v_{A}\cos \theta } where v A = B 0 μ 0 ρ {\displaystyle v_{A}={\frac {B_{0}}{\sqrt {\mu _{0}\rho }}}} is the Alfvén speed. This branch...
    43 KB (5,251 words) - 16:31, 7 August 2024
  • − G D C ) {\displaystyle f(Z,\theta )=2\pi ^{-(N/2)}e^{-{\frac {1}{2}}(Z-GDC)^{T}(Z-GDC)}} where θ {\displaystyle \theta } is the estimated odor source...
    21 KB (3,129 words) - 13:13, 18 August 2024
  • Thumbnail for Wind wave
    {\displaystyle f(\Theta )} might be: f ( Θ ) = 2 π cos 2 ⁡ Θ , − π / 2 ≤ Θ ≤ π / 2 {\displaystyle f(\Theta )={\frac {2}{\pi }}\cos ^{2}\Theta ,\qquad -\pi...
    49 KB (6,139 words) - 18:26, 8 May 2024