I'm trying to extract climate variables in QGIS 3.10.2 for sample points with a raster dataset. The raster comes from ClimateNA () and is available as in ASCII grid (.asc) and NetCDF (.nc) formats.  The raster uses the Projection: Lambert Conformal Conic and Datum: D WGS 1984. The best matching CRS seems to be North_America_Lambert_Conformal_Conic, EPSG:102009  I've set the project CRS to this and verified it for all layers. The raster loads with the CRS undefined and must be set manually, and the sample points, which are actually located in California, are displayed at (0,0). The Google base map appears to be correct.    Does anyone know how I can resolve this?   Another user was able to load it correctly, so hopefully its just a simple step I'm doing incorrectly.
I am a history teacher and I like to make my own maps (I can never find exactly what I want).  I am using QGIS 1.8 and .  I want to reproject their cross-blended hypso rasters into projections that are more familiar looking to my students, like Lambert Conic Conformal.  I have tried changing the crs for the whole project, and the warp and assign functions from the raster menu, and changing the crs for the raster layer itself.  None of these seem to work properly - the resulting maps are unrecognizable and extremely large (file size).  I feel like I am making some kind of basic mistake but I don't know where to begin with this.  Any help would be appreciated.
Does DTIME(O(n)) = REGULAR? (I don't think that this is a good fit on cstheory, since I figure that this question already has a known answer.  However, if you think that this would be a better fit there, please feel free to migrate it)  It can easily be shown that REGULAR (the class of regular languages) is contained in DTIME(O(n)), because for any regular language L we can decide membership in that language in O(n) time by converting a DFA that decides L into a TM that decides L in a single pass over the input.  However, is it also true that DTIME(O(n)) is contained in REGULAR; that is, that any language that can be decided in O(n) time by a single-tape TM is necessarily regular?  I have no idea how to approach this problem, and every language I can think of in DTIME(O(n)) seems to be regular.  Intuitively, this would make sense, since if you're only allowed to make finitely many passes over the input, you could only remember finitely many things about it, which it seems like you could simulate with a sufficiently large DFA.  However, the fact that you can write to the input tape seems like it might complicate things.  And no, this isn't a homework problem.  I'm actually teaching a course that covers computability and complexity theory and thought it would be interesting to present the answer to this question in lecture. :-)  Thanks! I'm unable to update nodejs, and I can't see why.  If I were to make a guess, I'd say that I have two repositories listed in apt-get, that both contain a nodejs package.  Here's what I've done:  Remove old version:  sudo apt-get remove --purge nodejs npm   Then, going by , I've run:  curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -   And then:  sudo apt-get install -y nodejs   I then run:  nodejs -v   Which returns:  v0.10.25   Can anyone explain what's going wrong? And how I can remedy this situation?  Many thanks. If A and B play a game with a fair coin such that A wins by getting consecutive TT for the first time, while B wins by getting a consecutive TH.  Who has higher probability of winning the game?   I tried the following method but not sure:  For A to win,     TT, HTT, HHTT ... that is, 2-k for each game length k   For B to win,     TH, HTH, HHTH ... that is, 2-k for each game length k   So ultimately I am getting same probability of each to win. How can I save the world from the spread of Hallow and Corruption/Crimson? After the Wall of Flesh, the Hallow appears and Corruption/Crimson spreads even faster.   Corruption/Crimson spreads through everything   Except Hallow  Hallow spreads through everything   Except mud (jungle) Except synthetic blocks like gray-brick  The results of Hallow and Corruption meeting are unpredictable   How can I stop them both permanently and effectively from taking over the world, considering both the top layer and underground?  (Eg, simply placing gray brick on top of the surface won't stop the underground spread?)  And, is it worth the effort? What is the difference between DX format and FX format lenses, and which to choose for what purpose?  What are the pros and cons of both? How to Setup GIMP 2.10 on Ubuntu 16.04 (Xenial Xerus) I have been racking my brain to understand the solutions of constrained stars and bars problems like:  $a+b+c+d = 19$;  $a,b,c,d \in \{0,1,2,3,4,5,6,7\}$  Finding the total number of solutions is really simple $\dbinom{22}{3}$.   What to do after that? I want to understand the entire procedure step by step.   Please do not mark it as a duplicate of .  Reasons:   The accepted answer's trick doesn't always work.   Another person (the answer with two upvotes) has just listed out the binomial coefficients and I can't even remotely understand what he has tried to do.   The second answer isn't my cup of tea. Need assistance shrinking MDF File Verbose logging was accidentally left on for one of our database ballooning our database MDF file from roughly 90GB to 192GB.  We've disabled verbose logging, truncated the logging table but now we want to shrink the MDF file to reclaim disk space as the drive the MDF file is on is only around 200GB. I don't have the luxury of increasing its size. Our disk space monitoring tool is alerting me that drive space is less than 8% over and over and over.  Given this is the first instance this has ever happened, we don't expect to ever need that extra 102GB of disk space again. We'd like to reclaim it.   I've tried to use the GUI to shrink the database and the files but it doesn't actually change in size. I've also tried using DBCC SHRINKFILE and DBCC ShrinkDatabase with NoTruncate and TruncateOnly. No matter what I do the file doesn't seem to budge.  One potential issue is that somehow the database initial size is 188GB. Deleting and re-creating the database isn't a very practical option for us so how can I shrink the MDF file and reclaim our disk space?  Running dbcc shrinkfile('My_Data'), I get the following results:  DBID: 5  Field: 1 CurrentSize:24030464 MinimumSize: 128 UsedPages: 17770472 EstimatedPages: 17770472   The database MDF file is still the same size (192,243,712 KB).  The table has a clustered index:  Name:TRACES ObjectID: 394588594 Type: Clustered Index/b-tree   The query:  SELECT     name,     size/128.0 - CAST(FILEPROPERTY(name, 'SpaceUsed') AS int)/128.0 AS AvailableSpaceInMB FROM sys.database_files   ...for the database I am trying to shrink, returns:  Name: My_Data AvailableSpaceInMB: 48693.375000 Name: My_Log  AvailableSpaceInMB: 67028.437500   I've also tried shrinking in small chunks using a PowerShell script that shrinks in 20MB increments. That also doesn't change the size of the MDF file.  I've tried dbcc shrinkfile(My_Data) without any other options from SQL Management Studio. It runs for a long time, finishes, and the MDF file is still the same size. Specifying a target size, it runs for a good 30-40 minutes (finishes) and nothing changes file size wise.  I ran this: DBCC SHRINKFILE (N'My_Data' , 139045) and get the following results:  DbId: 5 Field: 1 CurrentSize: 24030464 MinimumSize: 128 UsedPages: 17808744 EstimatedPages: 17808744 Why does chmod 777 -R / leave the system unusable? I'm only granting permission to all to do anything but why does the system crash by giving permissions only? I'm only modifying the permission not changing the files. Orthogonal matrix and orthonormal columns I have messed up my sudoers file and I want to change the permission on it.   When I login in recovery mode, I cannot run the command chmod as it is read-only option.  I tried mount -o remount,rw / in recovery mode. Didn't work for me:  Err : Ext4-fs remount. Opts errors=remount-ro    How can I boot into recovery mode and with read-write option? What do you call a person who does/thinks the opposite of the crowd for just that reason? Such a person does not hold in high regard the decisions taken by a group (not a team) of people. She believes that groups tend to be anarchic and don't serve their purpose.  An example would be - for outings with friends, this person will not like planning it with the group since they will mess it up.  Therefore, this person has convinced herself that when more people are involved with something, it will be worse. She distrusts crowds instinctively basically. What happens to waves when they hit smaller apertures than their wavelenghts? My child has chickenpox, am I infectious? My 3-year-old has had chickenpox for about 2-3 days, but a close friend has just had a baby and I want to go and help. Is it possible that I am infectious, despite not having the illness? I had it as a child, so (hopefully) can't actually get it myself. Thanks! Linux doesn't actually distinguish between processes and threads, and implements both as a data structure task_struct.  So what does Linux provide to some programs for them to tell threads of a process  from its child processes? For example,   Thanks. Is there any practical difference between saving at 300ppi or 72ppi? I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints the image it won't look as good as if it were 300 dpi."  What? Have I missed something here?  Does an image edited and saved/exported with 1200x800 pixels at 300 ppi look any different online than the same image saved/exported with 1200x800 pixels at 72 ppi? Other than the metadata regarding ppi, is there any difference in the two images at all? If so, what is the difference? If I tell my printer to print the images at 4R (4X6 inches) will there be any difference at all in how the printer creates a print from the 1200x800 @ 300 dpi image versus the 1200x800 @ 72 dpi image? CPU Emulation and locking to a specific clock speed If you had read my other , you'll know I've spent this weekend putting together a 6502 CPU emulator as a programming exercise.  The CPU emulator is mostly complete, and seems to be fairly accurate from my limited testing, however it is running incredibly fast, and I want to throttle it down to the actual clock speed of the machine.  My current test loop is this:      // Just loop infinitely.     while (1 == 1)     {                         CPU.ClockCyclesBeforeNext--;          if (CPU.ClockCyclesBeforeNext &lt;= 0)         {             // Find out how many clock cycles this instruction will take             CPU.ClockCyclesBeforeNext = CPU.OpcodeMapper.Map[CPU.Memory[CPU.PC]].CpuCycles;              // Run the instruction             CPU.ExecuteInstruction(CPU.Memory[CPU.PC]);              // Debugging Info             CPU.DumpDebug();             Console.WriteLine(CPU.OpcodeMapper.Map[CPU.Memory[CPU.PC]].ArgumentLength);              // Move to next instruction             CPU.PC += 1 + CPU.OpcodeMapper.Map[CPU.Memory[CPU.PC]].ArgumentLength;                                                 }     }   As you can tell, each opcode takes a specific amount of time to complete, so I do not run the next instruction until I count down the CPU Cycle clock. This provides proper timing between opcodes, its just that the entire thing runs way to fast.  The targeted CPU speed is 1.79mhz, however I'd like whatever solution to the clock issue to keep the speed at 1.79mhz even as I add complexity, so I don't have to adjust it up.  Any ideas? How can I represent multiple pins at the same location on a map? How does Salesforce SSO call just-in-time handler methods Is it possible to make the -init method private in Objective-C? I need to hide (make private) the -init method of my class in Objective-C.  How can I do that?