Block Off with Frequently Asked Questions (FAQ).

1. Why won't mobs spawn in my trap

There are two points to remember that may seem contradictory: first, like Nicholas pointed out, you need to makes sure that your mobspawner is the only nonlit space in a pretty big area around you (I think the area's actually about 150x150 blocks), but second, you need a lot of empty space around. In other words, minecraft will choose places that have a lot of surface area (not volume) to spawn mobs in, so if you were to have a lot of open caves beneath your mobspawner, the game will flag that area as more likely to spawn mobs in. You just also have to make sure that it's all well-lit, then you've effectively tricked the game into flagging that area to spawn mobs in, but then conveniently your mobspawner is the only dark area where it can do so. I would recommend you take a look at this tutorial. You may not want that particular style of mobspawner, but it goes over the prerequisites of any good mobspawner quite nicely

------

2. How do I do /scoreboard players test functions in 1.14?

It sounds like you are using an impulse command block.In your case it seems like you want a repeating command block, or you can build a redstone clock that activates your command block repeatedly.You may want to build something that looks like this, to prevent the player from saying "hi" repeatedly:You would have this command in the repeating command block:And this command in the impulse command block:An impulse command block activates ONCE whenever you give it a redstone impulse, or the moment you set it to "always active"A repeating command block is blue, it activates repeatedly, as long as it has a redstone signal going in to it, or as long as it is set to "always active"A chain command block is green, it activates whenever a different command block that points at it (there should be arrows on the command blocks) and is touching it activates and there is redstone going into it, unless it is set to "always active", in that case it does not require redstone.

------

3. Can you nest blocks when generating RSS feeds?

That's a good question.I think the key is here:I don't use CDATA all that much (because I don't use XML all that much) but one place where I do use it is when I'm adding an inline stylesheet to an SVG file.See:the difference here, is: I know the limits of what will be going inside the CDATA.I won't know in advance the exact contents of the CDATA but I do know that it will be valid CSS.

This means I can anticipate it might contain a > (direct descendant selector) which I need to escape or a in a @media query (both of which I need to escape) but I also know that it will never contain > anywhere, because that substring has no place appearing in valid CSS.So, I'm going to suggest that the advantage of CDATA is when you can be 100% certain that its contents will never contain >.If you can't be 100% certain of that, then you're right: the utility of CDATA is significantly diminished.

------

4. TikZ pic gives error in a german exsheets enviroment

The problem seems to originate from the shorthand character " activated by babel. These enable you to type e.g. "a to get the umlaut "" etc. As you also entered umlauts in your example I'm guessing you do not want to use these shorthands anyway, so you can just disable them by adding the option shorthandsoff to the babel package.Note that I also added usepackageutf8inputenc to get the umlauts working. This only works if your file is saved in UTF8 encoding. Depending on your editor and environment, there may be other options for the encoding, e.g. Latin-1 is common on Windows. In that case, simply change the utf8 option accordingly, e.

g. to usepackagelatin1inputenc. You will probably get strange errors if the encoding is not set correctly. The only other change I made below is setting question/headings to block instead of topic - you have probably defined that elsewhere in your code, but it gave me an error message. The code as shown below works fine for me.

------

5. inlineEditSupport not working for components which are not rendered when page is loaded

It's not terribly clear what the issue is. My best guess is that there is something wrong with your DOM and that's causing your rerender to break. Going off of your snippet you posted, I refactored the VF to clean up the DOM some, and changed the object to Account and used standard Account fields just so that it would work in my sandbox. Also, I tested it first with a rerender on the "show details" button below. With rerendering, the field would show up ok and inline edititng worked, but the page block buttons would not show/hide appropriately. I took out the rerender and just let the "show details" button reload the whole page and that made it work properly.Here is what my code looks like:VF PageExtension:And in my testing, both inline edits function ok:The page with top section showing

Inline-editing field in top section works fine

Clicking "Show Detail" button to render bottom section

And inline-editing field in bottom section works fine

------

6. Spectrum of perturbed matrix independent of perturbation

If the spectrum of $A t B$ (including algebraic multiplicity) is independent of $t$, then the characteristic polynomial is also independent of $t$. This can occur if the nonzero entries of $A$ and $B$ are placed so that the first minor of $AB$ for each nonzero entry of $B$ is $0$. For example, this occurs for $A$ and $B$ of the form

$$ A pmatrix* & * & * & * & *cr * & * & * & * & *cr 0 & 0 & * & * & *cr 0 & 0 & 0 & * & *cr 0 & 0 & 0 & * & *cr, B pmatrix0 & 0 & * & * & *cr 0 & 0 & * & * & *cr 0 & 0 & 0 & * & *cr 0 & 0 & 0 & 0 & 0cr 0 & 0 & 0 & 0 & 0cr $$

(where $*$ denotes an entry that may be nonzero). Thus, corresponding to the $(1,j)$ entry with $j ge 3$, when we delete the first row and $j$'th column of $AtB$ the first two columns of the resulting matrix have nonzeros only in the first remaining row, resulting in a determinant of $0$. Similarly, if the $n times n$ matrix $A$ has an $m times m$ block at the top left, such that all entries below this block are $0$, and the only nonzero entries of $B$ are in the first $m$ rows to the right of this block, then the spectrum of $AB$ won't depend on $B$.

------

7. Feedback to router users during access-restricted hours for DD-WRT

Without knowing any detail about DD-WRT, I think you should be able to concoct an iptables rule that would DNAT all port 80 (HTTP) traffic to a given port on a given host, which could then respond with a standard response regardless the URL requested. You'd need an HTTP server configured to cough up your 'Access Denied' pages, but it'd be doable.For the DNAT games, you'll need something like this:with your correct internal subnet numbers for the source (-s), and the actual IP and port for your webserver that's kicking back 'access denied' pages. Naturally, there may be a handy web interface to create that rule; I don't know DD-WRT.I put that destination value in thinking that you could probably configure the apache demon in the device to listen on that port (particularly on the loopback 127.0.0.1 only) and make your response pages.Unfortunately, I'm not as handy with Apache, nor do I know how the arrangements are in DD-WRT, so I'll leave that part of the exercise for someone with more knowledge of the DD-WRT details. Good luck!.

------

8. What will be the immediate action by the pilot and ATC if any plane blocks the runway while landing?

That would never happen. Planes are under ATC control from the moment they start their engines until the moment thay shut down their engines at the destination. (This is a simplification, but for the context of this question it makes sense).ATC decides basically everything a flight does: which way it taxies, where and when it takes off, which way it flies, how high, how fast, when and which runway to approach and when to land. ATC will always ensure that there is enough separation between flights so that there is no risk of collision. That is literally the main reason ATC exists.Generally speaking, only one aircraft is allowed on any one runway at a given time. While a plane is taking off from a runway, another plane cannot be cleared to land on that same runway. The aircraft approaching will not be cleared to land until the departing plane is in the air. If the departing plane decides to abort takeoff, ATC would simply instruct the landing plane to cancel the approach, and then direct it around for another try.

------

9. Clear examples of Fixed Point Algorithm Specification Block Diagram for FPGA Implementer

I designed a lot of DSP algorithms and I would usually be the one implementing them in an FPGA. I rarely had to explain the internals of an algorithm to other people. That beind said, it is a good idea to represent the number of bits (I usually used the s:m:f notation from Sony Playstation 2) in a block diagram/design document for every components. You should also specify whether or not the FPGA designer must truncate or round.Otherwise if you leave the number of bits used for the internal calculations up to the FPGA designer, you're looking for trouble. Using an insufficient number of bits can render your algorithm useless or unstable.

It is also a good idea to create a fixed-point model of your algorithm in Matlab/Python/Octave/C for 2 reasons. First, you will be able to validate the number of bits needed so that your fixed-point algorithm behaves similarly to the floating-point arithmetic algorithm. Secondly, you will be able to compare the FPGA implementation to your fixed-point model. The FPGA implementation should behave exactly the same as your fixed-point model

------

10. Long user locations without a space causes the user page to display weird

On the Wikipedia webpage List of Long Place Names there are legitimate names of up to 85 characters with the top half dozen all being longer than the length you suggest to truncate to.The user above that @flawr also has a long place name, but it's not their longest line. Other users, like @user2428116 (to the right) have no location and use less vertical space.

Perhaps we should allow wrapping, instead of restricting to a single line 3 could be allowed.A background process could determine if the text matched a know place and restrict the user to a reasonable length while legitimate names could be afforded a bit more space.That walks the line against discriminating where people claim to be from, censorship and reasonableness.

A bit of vertical whitespace wouldn't be nearly as bad as a huge amount, horizontally situated inbetween user names, which propagates the length of the webpage.The question "Attempting to use too long tag breaks popup" has comments suggesting that design issues are lower priority Bugs and an answer there offers a fix

------

11. Change Map Title Block Information through ArcPy

If I understand correctly, you have a text element in your layout called Title. You'd like to replace the text of the element with variable titleList. I assume the value of the variable looks like "Exhibit 1;Exhibit 2;Exhibit 3".If you want all the titles in a single text element on different lines you could do something like this. The code below assumes that titlelist looks like a string with titles separated by a semicolon, and the text element area is large enough to support multiple lines of titles.Swap the semicolons for carriage returns:Then replace the text:or this way to clean up any spaces:You can also get more sophisticated using formatting tags so you can have subtitles:I realize that isn't too flexible since it is hardcoded to three titles. You would need to loop through in some way. I found using 10.2.2 on my machine only using the n doesn't create a carriage return you need rn for it to work.

Edit: See @paul's comment for an explanation about r and n.

get in touch with us
Artikel yang disarankan
Were one or more machines required to be running 24/7 on the network after the first block was mined?
He didn't have to, and it appears that he actually didn't. Block #1 has a timestamp that's more than 5 days later than the genesis block. Any decent computer in 2009 would have been able to mine a block at difficulty 1 much faster than that, most likely within a couple of hours. (I have a computer I bought in 2010, not particularly fast by the standards of those time, and it produces about 2 MHash/sec, so that it would mine a difficulty 1 block in an average of about 2000 seconds or about 33 minutes.) So almost certainly, neither Satoshi nor anybody else was mining during those 5 days. There's another gap of 24 hours between blocks #14 and #15, which suggests nobody was mining during that time period either. I don't think we know this. It's likely he did some sort of testing with multiple nodes prior to release, but I don't know of any data for how many nodes there were on the live network in the earliest days after release. We also would have no way to know for sure whether they were being operated by Satoshi or someone else.Then no blocks get generated, that's all. Nobody collects any block rewards if nobody is mining. If any transactions were created during that time, they could not have been confirmed until after someone started mining again. It's not inherently necessary that people be mining at all times - things start right back up when they come back. The software can't really tell the difference between "nobody is mining" and "people are mining, but due to bad luck there hasn't been a new block for a while". As mentioned above, probably not. • Suggested Reading Where is the old option TraceInternal->True? Let me first answer your second question, since I can only guess about the main question:It's really just the coloring that goes wrong and has nothing to do with functionality. You can see that it is not even related to TraceInternal by using a officially documented optionThe reason for the wrong coloring is the FunctionInformation.m file. There, the coloring patterns for each built in function can be found and the one of Trace is just wrongAs you see, Trace is supposed to have 1 or optionally 2 arguments which is not correct. Fix it with the following and everything looks non-red:In the case of the behavior of TraceInternal one should first note, that it indeed still works. You can test this by e.g. search this site for TraceInternal and try the examples you find. You will see that it indeed traces internal functions, just not Roots. What I suspect is that Wolfram turned tracing for some part of the Solve code off. I can kind of mimic something like this by using Block to temporarily overwrite the value of $TraceOn or $TraceOff. With this, I can prevent that the tracer steps into some part of my code. It seems Wolfram did something else because I couldn't find traces of something like that when looking closer at your Solve call. By looking closer I mean something like the following which prints the evaluation stack when Roots is reached.In the above output, you will find many things that are called, for instance PolynomialGCD. . Still it is not possible to catch those expressions with trace. In my opinion the more general question should be: How is it possible to make parts of the evaluation completely invisible to trace? ------ Disable compression on SSL/TLS connections in Apache 16 using mod_header First, CRIME only applies if your website uses all of these three: It is only useful for hijacking active sessions, and is most useful if your server doesn't require session IP matching. While many websites do use this combination, it's not as common as many would think. Also, some statistics suggest that What Does NOT Work: The Vary field just tells upstream proxies if they're allowed to cache a dynamic page. While it's important to consider for your caching strategy, not so much for this particular vulnerability.Unsetting the Accept-Encoding field will only affect mod_deflate or mod_gzip; it doesn't affect compression by SSL/TLS. So your method will not work.What Does Work: There are two options for protecting your server. You can disable compression support in your SSL/TLS library, by recompiling it without compression; or you can patch your server to support the SSLCompression directive. Apache 2.4.x supports this directive natively. Apache 2.2.22 can be patched relatively easily. Various Operation System Distributions are back-porting the patches now, check with your Distro provider for details (most Linux Distro use ancient versions of Apache that they've written custom back-ports of security patches for. So you'll pretty much be at your Distro's mercy if you're using their sanctioned packages).How Sure Are You: There's a very easy to use SSL "Problem" Scanner available from SSL Labs. It will detect if your server is CRIME vulnerable. You can semi-ignore BEAST warnings as all modern browsers have fixed the issue client side. It would depend on your particular set of circumstances however. ------ Use of javascript in Tor browser If you need the javascript turned on to sign in to a website, your biggest problem is not javascript, your biggest problem is signing in. By signing in you are revealing who you are! Of course, you may use a pseudonym to sign in, but even using pseudonym, you are not anonymous any more. You are pseudo-anonymous. Now you should be real careful not to associate your actual name with your pseudonym through any means. For example, the style you write may reveal some information about you. What you write is also reveal some information about you. What Websites you visit reveal some information about you. If you let something slip, your anonymity maybe over and your pseudonym maybe linked to your real identity. In short, you have a bigger problem now than the javascript being turned on. Having said that, The javascript being turned on is one vector to attack and de-anonymise you, albeit, an important one. But remember, it is one vector among many vectors that can be utilized to de-anonymize you. Anonymity is difficult, specially if you continuesly use Tor to visit many different websites and you do not isolate each of these visits by for example, starting with new identity for each website you visit or even better having a new and unique instance of Tor for each website you visit.By default The Tor browser enables javascript. Thus, you should have no problem to sign in or log in to many sites. Folks have an option to manually disable the javascript to enhance their anonymity. In your case, since you like to sign in or log in to some sites you should stick in with default Tor browser settings. ------ I think there is something wrong with this problem. How do you know if the vertical acceleration is zero? You're correct that the vertical component of Newton's second law should be$$sum F_y ma_y$$You set $a_y 0$ because the block is not flying up off the table. This is implied by the wording of the problem: usually blocks are assumed not to be flying up off their tables unless it is explicitly stated that that is a possibility. Plus, the fact that they ask for an apparent weight suggests that the block is staying against the surface it sits on. However, you can also show that the block stays on the table if the diagonal force is $15text N$. To do so, you use the rule that the normal force will be as strong as it has to be to cancel out the forces pushing the block against the surface.In detail, you add up all forces acting on the block other than the normal force, which in this case gives you $Fsintheta - mg$. If this "subtotal force" is directed into the surface, the normal force will have the same magnitude but will act away from the surface, so that the net force including the normal force is zero.$$N sum_textother F_perp 0$$On the other hand, if the "subtotal force" is directed away from the surface, the normal force will be unable to counteract it. In that case the normal force will be zero, and there will be a net force on the block. Since net force equals acceleration, you can then conclude that the block will have an acceleration perpendicular to the table, i.e. it will fly up off the table.In short, the status of the block's motion and the normal force depends on the sum of the other forces: ------ Windows 2008: re-use of deleted blocks on virtual thin disks Check with the vendor but you are likely wasting your time archiving. The allocated space to the LUN will not shrink by virtue of deleting files in Windows. Note that the allocated space to the LUN is different than the size of the LUN itself. If you thin provision a 100GB LUN, and write 10GB of data to it, the SAN will allocate 10GB worth of raw disk blocks on its underlying disks to the LUN. Then, when Windows wants to write to a new block, this grows the % of space on your thin LUN that becomes allocated/provisioned. Over time, as Windows requests to write to pristine (never-touched) blocks, those blocks will be allocated by the SAN from its global pool of unused blocks, and the allocated/provisioned size of the LUN will increase further. Eventually with enough data churn, a thin provisioned LUN will become thick provisioned. It may take a long time, but it depends entirely on the OS's behavior.Without special software (that basil has mentioned), the SAN has no way of knowing which blocks can be reclaimed, as the SAN can't "see" NTFS (or any other filesystem) by itself. Additionally, most of the time you need to have this software running in Windows before the volume becomes thickly provisioned, but again check with the vendor.In general, thin provisioning buys you time (you don't have to allocate all your storage at the get-go) but eventually you will need to back your volumes 100% with storage.Note, my understanding is that Linux does prefer to overwrite blocks instead of using pristine ones, but I don't have a reference to back that up. ------ Asynchronous commit on Postgres over iSCSI with BBU storage Actually, that's kind of backwards. Turning synchronous_commit off is unsafe no matter what, in that it permits the database to lose recently committed transactions if it crashes. This is true with, or without, BBU or crash-safe SSD storage.What synchronous_commit off does is allows you to trade durability for speed when you're on storage where flushes are expensive so you want to batch them up and want to avoid client latency while apps wait for flushes. It has much less effect on storage where flushes are fast, since you do less waiting for commits to happen - so it's pretty much all downside and little benefit.In general, you should not set synchronous_commit off globally. As the documentation advises, you should SET LOCAL synchronous_commit off in specific transactions that you don't need to be durable, leaving it enabled otherwise. That way you might lose transactions you're not so fussed about, but not the ones that're making important changes.If you can't afford potential loss of transactions that clients think are committed at all, you may instead want to consider a commit_delay, which pauses to try to batch a few commits together before flushing. This can produce a throughput improvement on I/O subsystems with really slow flushes without sacrificing durability. You may also want to consider using UNLOGGED tables for specific tables you can afford to lose in a crash. If Pg crashes while the table is dirty it'll truncate it and you'll have to re-populate it, but there'll be no wider database corruption.If anyone tells you to turn fsync off - please don't. It should be called eat_my_data on, and is totally unsuitable for anything except throw-away instances where you can easily reconstruct the lot after a crash
Block Off: Common Questions
Questions About Common Block Off
Where Can Students Go on at School to Unblock Stuff Like, Youtube, That the Teacher's Block Off?
Oil Block-off on Yamaha Rt 100?
I Am Getting Two Female Rats soon, and I Need to Block Off My Closet, but Im Not Sure How...?
Frequently Asked Questions (FAQ) for Block Off
Tips to Help You Design the Perfect Solar Battery for That Party
Functional Features and Application Introduction of TG452 Series Intelligent Street Lamp Gateway
What Is the Best the Best Solar Street Light for You? - the Best Solar Street Light Reviews
related searches
Block Off: Common Questions
Questions About Common Block Off
Where Can Students Go on at School to Unblock Stuff Like, Youtube, That the Teacher's Block Off?
Oil Block-off on Yamaha Rt 100?
I Am Getting Two Female Rats soon, and I Need to Block Off My Closet, but Im Not Sure How...?
Frequently Asked Questions (FAQ) for Block Off
Were one or more machines required to be running 24/7 on the network after the first block was mined?
Tips to Help You Design the Perfect Solar Battery for That Party
Functional Features and Application Introduction of TG452 Series Intelligent Street Lamp Gateway

Copyright © 2020  Shandong Abusair Agricultural Machinery Co,. Ltd- |  Sitemap

Multifunctional farm Abusair machinery  |  Tea Professional Cultivator farm machinery