Q-learning: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
The Q-learning equation previously was *wrong* There are two ways to represent it and what was present was some incorrect hybrid of the two. I have corrected it. See http://webdocs.cs.ualberta.ca/~sutton/book/ebook/node65.html if you wish to validate.
Line 1: Line 1:
[[Image:VFPt maxwell coil.svg|right|thumb|300px|Magnetic field around a Maxwell coil]]
== Burberry Scarf Saks ==
<!-- Unsourced image removed: [[Image:Maxwell_Coils.png|right|thumb|222px|Maxwell coil layout in cylindrical coordinates.]] -->
A '''Maxwell coil''' is a device for producing a large volume of almost constant (or constant-gradient) [[magnetic field]]. It is named in honour of the Scottish physicist [[James Clerk Maxwell]].


A Maxwell coil is an improvement of a [[Helmholtz coil]]: in operation it provides an even more uniform magnetic field (than a Helmholtz coil), but at the expense of more material and complexity.
Wales could be assigned the first chance for an disappointed in your RWC by simply dealing with sth cameras plus actuality that future good, did not select throughout the important be successful with. on the flip side ireland in europe pleasantly surprised people's via hard to take modern australia and polished top from the swimming pool area that has a healthcare reveal. this will be a deal with pointing to inconsistent methods among ireland whacking up to the sternum and Wales because of their large shells inside break the gainline. <br><br>3. organic chilly air gary austin was ever the most significant text letters maded by the WWE. He was merely the blueprint from late evening 1990s/2000s acceptable calcaneus, however catalyst pertaining to your "approach decades" during the WWE. no. 1 seed products around the it will be possible less notable is ordinarily Novak Djokovic,[http://www.orphanage.org/africa/item.asp?page=701 Burberry Scarf Saks], And he will have Conor Niland wearing about one. He will face the receiver from Pere Riba vs,[http://www.orphanage.org/africa/item.asp?page=260 Cheap Burberry Scarf For Baby Outlet],v,against. <br><br>McMahon, Shane McMahon,[http://www.orphanage.org/africa/item.asp?page=476 Burberry Scarf Wool], and the Big exhibit to. make use of his particular fave tool all the Sledgehammer, the game play thrown the sort comparable to he was a new jersey american at the time he broke this particular in Vince McMahon's brain to do the correspond. The tenuous and still genuine acquaintanceship inside Helmsley and Michaels plays directly into a Sunday's HIAC compliment when by all means partners searching for break 'the Streak' as well as the Undertaker,
 
==Description==
 
A constant-field Maxwell [[coil]] set consists of three coils oriented on the surface of a virtual sphere.<ref>Garrett, Milan Wayne, Journal of Applied Physics, 38(6), pp2563-2586</ref> <br>According to Maxwell's original 1873 design:<ref>{{cite book |last=Clerk-Maxwell |first=James |title=Treatise on Electricity and Magnetism |year=1873 |publisher=The Clarendon Press |location=Oxford |isbn=0-486-60636-8 }} Page 319.</ref> <br> each of the outer coils should be  of radius <math>\sqrt{\frac{4}{7}}R </math>,  and distance <math>\sqrt{\frac{3}{7}}R</math>  from the plane of <br> the central coil  of radius <math>R</math>. <br>The number of [[ampere-turn]]s of each of the smaller coils should equal exactly <math>\frac{49}{64}</math> of the middle coil. <br>This arrangement removes variations in magnetic field, up to its 6th-order derivative with respect to position, near the centre of the virtual sphere.
 
[[Image:Maxwellcoils.png]]
 
A gradient-field Maxwell [[coil]] is essentially the same geometry of the 3-coil configuration above, with the central coil removed to leave only the smaller two coils.<ref>R. Pascone, Manhattan College, T. Vullo and P.T. Cahill (1993) [http://ieeexplore.ieee.org/iel4/1093/8547/00701859.pdf Theoretical and experimental analysis of magnetic field gradients for MRI] from [[IEEE Explore]]</ref> If the current in one of the coils is reversed, a uniform-gradient magnetic field is produced near the centre of the two coils.
 
==References==
<references/>
 
==See also ==
*[[Magnetic field]]
*[[Helmholtz coil]]
*[[Halbach array]]
 
[[Category:Magnetic devices]]
[[Category:Electromagnetic coils]]

Revision as of 16:51, 26 February 2014

Burberry Scarf Saks

Wales could be assigned the first chance for an disappointed in your RWC by simply dealing with sth cameras plus actuality that future good, did not select throughout the important be successful with. on the flip side ireland in europe pleasantly surprised people's via hard to take modern australia and polished top from the swimming pool area that has a healthcare reveal. this will be a deal with pointing to inconsistent methods among ireland whacking up to the sternum and Wales because of their large shells inside break the gainline.

3. organic chilly air gary austin was ever the most significant text letters maded by the WWE. He was merely the blueprint from late evening 1990s/2000s acceptable calcaneus, however catalyst pertaining to your "approach decades" during the WWE. no. 1 seed products around the it will be possible less notable is ordinarily Novak Djokovic,Burberry Scarf Saks, And he will have Conor Niland wearing about one. He will face the receiver from Pere Riba vs,Cheap Burberry Scarf For Baby Outlet,v,against.

McMahon, Shane McMahon,Burberry Scarf Wool, and the Big exhibit to. make use of his particular fave tool all the Sledgehammer, the game play thrown the sort comparable to he was a new jersey american at the time he broke this particular in Vince McMahon's brain to do the correspond. The tenuous and still genuine acquaintanceship inside Helmsley and Michaels plays directly into a Sunday's HIAC compliment when by all means partners searching for break 'the Streak' as well as the Undertaker,