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  • Austin Texas - Linux Against Poverty 2010

    <b>Blog of Helios:</b> "It's spring time in Texas. The Bluebonnets are fixin' to get ready to bloom, today's temperature is going to be around 80 degrees Fahrenheit and a solid date for the second annual Linux Against Poverty is, with a fair amount of certainty... official."

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  • Building websites, which is the better approach MVP or MVC?

    - by Nick
    I'm looking for feedback on MVP and MVC patterns used as basis to build a website. I've used both with a certain degrees of success and failure. Furthermore I've worked in places which have miserable implement MVP across the web, desktop and services layers. I've also seen a few terrible MVC implementations. One thing I've noticed is the MVP stuff-up appear terrible for maintenance or adding any new features compared to the MVC debacles.

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  • Is the science of Computer Science dead?

    - by Veaviticus
    Question : Is the science and art of CS dead? By that I mean, the real requirements to think, plan and efficiently solve problems seems to be falling away from CS these days. The field seems to be lowering the entry-barrier so more people can 'program' without having to learn how to truly program. Background : I'm a recent graduate with a BS in Computer Science. I'm working a starting position at a decent sized company in the IT department. I mostly do .NET and other Microsoft technologies at my job, but before this I've done Java stuff through internships and the like. I personally am a C++ programmer for my own for-fun projects. In Depth : Through the work I've been doing, it seems to me that the intense disciplines of a real science don't exist in CS anymore. In the past, programmers had to solve problems efficiently in order for systems to be robust and quick. But now, with the prevailing technologies like .NET, Java and scripting languages, it seems like efficiency and robustness have been traded for ease of development. Most of the colleagues that I work with don't even have degrees in Computer Science. Most graduated with Electrical Engineering degrees, a few with Software Engineering, even some who came from tech schools without a 4 year program. Yet they get by just fine without having the technical background of CS, without having studied theories and algorithms, without having any regard for making an elegant solution (they just go for the easiest, cheapest solution). The company pushes us to use Microsoft technologies, which take all the real thought out of the matter and replace it with libraries and tools that can auto-build your project for you half the time. I'm not trying to hate on the languages, I understand that they serve a purpose and do it well, but when your employees don't know how a hash-table works, and use the wrong sorting methods, or run SQL commands that are horribly inefficient (but get the job done in an acceptable time), it feels like more effort is being put into developing technologies that coddle new 'programmers' rather than actually teaching people how to do things right. I am interested in making efficient and, in my opinion, beautiful programs. If there is a better way to do it, I'd rather go back and refactor it than let it slide. But in the corporate world, they push me to complete tasks quickly rather than elegantly. And that really bugs me. Is this what I'm going to be looking forward to the rest of my life? Are there still positions out there for people who love the science and art of CS rather than just the paycheck? And on the same note, here's a good read if you haven't seen it before The Perils Of Java Schools

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  • Grad school guides for professional programmers

    - by Peter Turner
    I've exhausted my googling abilities on this search (too many ad-sites peddling online degrees) and turned to my favorite resource, ya'll. I'm looking for a website, book or long winded answer that breaks down graduate programs at universities and colleges by their geographical area / online capability; relative cost; prestige; difficulty; applicability to software engineering, computer science or a project management MBA; and years to complete.

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  • Using machine learning to aim mirrors in a solar array?

    - by Buttons840
    I've been thinking about solar collectors where several independent mirrors to focus the light on a solar collector, similar to the following design from Energy Innovations. Because there will be flaws in the assembly of this solar array, I am proceeding with the following assumptions (or lack thereof): The software knows the "position" of each mirror, but doesn't know how this position relates to the real world or to other mirrors. This will account for poor mirror calibration or other environmental factors which may effect one mirror but not the others. If a mirror moves 10 units in one direction, and then 10 units in the opposite direction, it will end up where it originally started. I would like to use machine learning to position the mirrors correctly and focus the light on the collector. I expect I would approach this as an optimization problem, optimizing the mirror positions to maximize the heat inside the collector and the power output. The problem is finding a small target in a noisy high-dimensional space (considering each mirror has 2 axis of rotation). Some of the problems I anticipate are: cloudy days, even if you stumble upon the perfect mirror alignment, it might be cloudy at the time noisy sensor data the sun is a moving target, it moves along a path, and follows a different path every day - although you could calculate the exact position of the sun at any time, you wouldn't know how that position relates to your mirrors My question isn't about the solar array, but possible machine learning techniques that would help in this "small target in a noisy high dimensional-space" problem. I mentioned the solar array because it was the catalyst for this question and a good example. What machine learning techniques can find such a small target in a noisy high-dimensional space? EDIT: A few additional thoughts: Yes, you can calculate the suns position in the real world, but you don't know how the mirrors position is related to the real world (unless you've learned it somehow). You might know the suns azimuth is 220 degrees, and the suns elevation is 60 degrees, and you might know a mirror is at position (-20, 42); now tell me, is that mirror correctly aligned with the sun? You don't know. Lets assume you have some very sophisticated heat measurements, and you know "with this heat level, there must be 2 mirrors correctly aligned". Now the question is, which two mirrors (out of 25 or more) are correctly aligned? One solution I considered was to approximate the correct "alignment function" using a neural network which would take the suns azimuth and elevation as input and output a large array with 2 values for each mirror which correspond to the 2 axis of each mirror. I'm not sure what the best training method is though.

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  • dash width after screen rotation (tablet mode)

    - by St.W.
    I use a convertible thinkpad (x201t) and magick-rotation to rotate the screen by 90 degrees in tablet mode. Therefore after rotation the screen's width is only 800 points (the ordinary resolution is 1200x800). The Dash does not adapt to this new state and therefore if I click on it, it is oversized and I cannot reach the applications/files/buttons on its side. Is there a way to tell the Dash that it should only ever use a width of 800 pixels, or any other solution to automatically adapt its size when rotating?

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  • Ubuntu 12.04 Overheating HP Pavillion dm4 3011tx

    - by gevvek
    I have tried installing Ubuntu 12.04 on my HP Pavilion dm4 3011tx and after a few minutes the fans start to work very fast and my laptop starts to heat up; The CPU temperature got up to 70 degrees and was still rising before I turned the computer off. I installed the graphics drivers for my AMD Raedon graphics and tried switching to the integrated graphics but that didn't make a difference I have also tried Fedora and Linux Mint and they do the same thing. Can anyone help?

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  • Web Design Gone Wrong

    Web Development can be one of the most difficult tasks to undertake. The varying degrees of involvement with the client can provide either useful or counterproductive elements in the overall product. Unfortunately, the compromises between form, function, and taste can leave a website as functional as someone who refused to obey the warning label and put their hand under the lawn mower.

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  • Stop a rotating object at a specified angle?

    - by Krummelz
    I'm working in JavaScript with HTML5 and the canvas. I have an object which is rotating at a certain speed, and I need the object's rotation to slow down gradually and the front of the object to stop at a specified angle. (I'm using radians, not degrees.) I have a variable to keep track of the angle which the object is facing, as it rotates. How would I go about getting the object to come to rest, facing the direction I want it to?

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  • Build a view frustum from angles

    - by MulletDevil
    I have 4 angles, left, right, top & bottom. These angles are in degrees. They define the angle between the forward vector and the corresponding side. I am trying to use these to calculate the required values for Perseective Off Centre function found here http://docs.unity3d.com/Documentation/ScriptReference/Camera-projectionMatrix.html I tried doing (near plane-far plane) * Tan(angle) But that didn't give the correct results.

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  • Ubuntu 12.10 overheats HP dv6t

    - by raul
    12.10 in my hp dv6t-6c00 I'm worried about the heat... I followed some advice, and I think that I disabled ATI card, that improved the fan activity and reduced the temperature a little bit. But now fan is starting and stopping all the time, according to the Jupiter applet, temp goes from 45 degrees to 58-59.... (without any load) Should I worry? What can I do to solve this? What is the normal temp?

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  • Rotate camera around player and set new forward directions

    - by Samurai Fox
    I have a 3rd person camera which can rotate around the player. When I look at the back of the player and press forward, player goes forward. Then I rotate 360 around the player and "forward direction" is tilted for 90 degrees. So every 360 turn there is 90 degrees of direction change. For example when camera is facing the right side of the player, when I press button to move forward, I want player to turn to the left and make that the "new forward". I have Player object with Camera as child object. Camera object has Camera script. Inside Camera script there are Player and Camera classes. Player object itself, has Input Controller. Also I'm making this script for joystick/ controller primarily. My camera script so far: using UnityEngine; using System.Collections; public class CameraScript : MonoBehaviour { public GameObject Target; public float RotateSpeed = 10, FollowDistance = 20, FollowHeight = 10; float RotateSpeedPerTime, DesiredRotationAngle, DesiredHeight, CurrentRotationAngle, CurrentHeight, Yaw, Pitch; Quaternion CurrentRotation; void LateUpdate() { RotateSpeedPerTime = RotateSpeed * Time.deltaTime; DesiredRotationAngle = Target.transform.eulerAngles.y; DesiredHeight = Target.transform.position.y + FollowHeight; CurrentRotationAngle = transform.eulerAngles.y; CurrentHeight = transform.position.y; CurrentRotationAngle = Mathf.LerpAngle(CurrentRotationAngle, DesiredRotationAngle, 0); CurrentHeight = Mathf.Lerp(CurrentHeight, DesiredHeight, 0); CurrentRotation = Quaternion.Euler(0, CurrentRotationAngle, 0); transform.position = Target.transform.position; transform.position -= CurrentRotation * Vector3.forward * FollowDistance; transform.position = new Vector3(transform.position.x, CurrentHeight, transform.position.z); Yaw = Input.GetAxis("Right Horizontal") * RotateSpeedPerTime; Pitch = Input.GetAxis("Right Vertical") * RotateSpeedPerTime; transform.Translate(new Vector3(Yaw, -Pitch, 0)); transform.position = new Vector3(transform.position.x, transform.position.y, transform.position.z); transform.LookAt(Target.transform); } }

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  • I do not have a degree but have 7 years of experience with ASP.NET, C#, can a institute offer me a degree?

    - by Asif
    Hi, I couldn't find time and money to study due to financial issues,however I managed to land some good jobs and projects and 2 multinational and my portfolio now has good clients on it too, however I still feel that I lack something important so was wondering if someone knows an college/university that offers degrees if you are a qualified professional, I'm also willing to study for few weeks if required.

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  • CPU temperature higher under Ubuntu 12.10 than under Windows 7

    - by user110019
    The CPU temperature under Ubuntu 12.10 is significantly higher than under Windows 7 doing similar tasks. For example, the CPU temperature under Windows when watching flash videos is around 50-60 degrees, under Ubuntu it is between 65-75. In idle mode in Ubuntu it is usually around 50. I use an i3 core and an integrated graphics. Is there a way to lower the temperature? And I don't mean via Jupiter as this doesn't work for watching videos..

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  • How to automatically resize the Dash when screen dimensions change?

    - by St.W.
    I use a convertible thinkpad (x201t) and magick-rotation to rotate the screen by 90 degrees in tablet mode. Therefore after rotation the screen's width is only 800 points (the ordinary resolution is 1200x800). The Dash does not adapt to this new state and therefore if I click on it, it is oversized and I cannot reach the applications/files/buttons on its side. Is there a way to tell the Dash that it should only ever use a width of 800 pixels, or any other solution to automatically adapt its size when rotating?

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  • Projectile Rotation

    - by Alex
    I'm trying to add a projectile system like the projectiles in Realm Of The Mad God. (YouTube it to see what I mean) These projectiles seem to move according to their rotation perfectly and can have nearly any rotation. They also have near perfect hitboxing. What's the maths behind this? My Game works on an integer-based coordinate system, but at the moment projectiles can only shoot either 0, 45, 90, 135, 180, 225, 270 and 315 degrees.

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  • Queries barely over the Cost Threshold for Parallelism

    - by jchang
    I had discussed SQL Server parallelism in Oct 2010, with my thoughts on the best settings for: Cost Threshold for Parallelism (CTP) and Max Degrees of Parallelism (MAXDOP) in Parallelism Strategy and Comments . At the time, I had intended to follow up with detailed measurements. So now a mere 2 years later, here it is. The general thought was that CTP should be raised from the default value of 5, and MAXDOP should be changed from unrestricted, on modern systems with very many cores, and most especially...(read more)

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  • Queries barely over the Cost Threshold for Parallelism

    - by jchang
    Previously I had discussed SQL Server parallelism, with my thoughts on the best settings for: Cost Threshold for Parallelism (CTP) and Max Degrees of Parallelism (MAXDOP) in Parallelism Strategy and Comments . At the time, I had intended to follow up with detailed measurements. So now a mere 2 years later, here it is. The general thought was that CTP should be raised from the default value of 5, and MAXDOP should be changed from unrestricted, on modern systems with very many cores, and most especially...(read more)

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  • Fastest way to check if two square 2D arrays are rotationally and reflectively distinct

    - by kustrle
    The best idea I have so far is to rotate first array by {0, 90, 180, 270} degrees and reflect it horizontally or/and vertically. We basically get 16 variations [1] of first array and compare them with second array. if none of them matches the two arrays are rotationally and reflectively distinct. I am wondering if there is more optimal solution than this brute-force approach? [1] 0deg, no reflection 0deg, reflect over x 0deg, reflect over y 0deg, reflect over x and y 90deg, no reflection ...

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  • Is there any way to tweak / rotate mouse orientation? Any applications? Registry edits?

    - by calbar
    I've got a very frustrating issue with my new Logitech Marathon Mouse M705. It is absolutely perfect for what I need, with the exception that it tracks on an angle for some reason. What I mean is when you slide the cursor to the left, it trends upward - when you slide to the right, it trends down. Moving the cursor along a flat horizontal line is no longer a natural motion - you need to fight what I suspect is a mechanical error of some kind. Unfortunately, I've already exchanged this mouse once and tested both on different Windows 7 and Mac OS machines - the problem continues to occur. So is there a software solution for me? I'm incredibly surprised there is no simple way to adjust the orientation... How can every mouse manufacturer possibly adjust their hardware to track to everyone's tastes? What about those who need to flip orientation a full 90 or 180 degrees? I only need to adjust mine a few degrees, but I'm sure that need has arisen as well. Anyway, I'm running the latest SetPoint drivers (6.00) on Windows 7 and there are no orientation options available. I've checked out uberOptions (http://uberoptions.net/) and the M705 isn't supported yet (with the last version update over 6 months ago). MAF Mouse (http://www.maf-soft.de/mafmouse/) instructions are a very strange series of mouse clicks to activate? This app also seems a little overkill and costs $$ (which I'm willing to pay as a last resort). Is there no universal registry value for mouse orientation? How about for SetPoint drivers specifically? I've done a simple search in regedit without any luck. An XML file somewhere? Anything?? Thanks a million for any help - it's driving me nuts!

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  • graphics performance better on battery?

    - by Scott Beeson
    Anyone have any idea why my laptop would perform (considerably) better while on battery than while plugged in? It's a Dell Latitude E6420 with Windows 8 Pro. I tried mirroring all the settings in the selected power plan from "On battery" to "Plugged In" and that didn't help. I then just restored the defaults for all power plans (balanced and high performance). I'm still seeing the same results. The best example where it is most noticeable (don't laugh) is Sim City Social in Chrome. I'm probably seeing a performance increase of 5x on battery versus plugged in. This is easily reproducible too. I'm very confused. Could it be caused by dust? The laptop isn't that old and there is no visible dust. I'm not going to take it apart to check the insides as it's a corporate laptop. Could it be overheating? Battery Sim City Social: 68 degrees max Civ V: 77 degrees max Charger Sim City Social: 68 Civ V: did not test See answer below... I'm retarded

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  • Macbook Pro - 15" with i7 processor - Any problems with heat?

    - by webworm
    You may have already heard about the review done by the folks at PC Authority in Australia, where they had an i7 MacBook Pro that got up to 100 degrees Celsius during benchmarking. Here is the URL in case you have not read it. http://www.pcauthority.com.au/News/172791,macbook-pro-helps-core-i7-hit-100-degrees.aspx In any case, I was considering purchasing a 15" Macbook Pro with the i7 processor and the NVIDIA GeForce GT330M with 512 video memory. Having read how hot the computer got I started to become hesitant about purchasing. My main concern is long term damage to the computer due to excessive heat. I plan to use the MacBook Pro as a development machine where I will be running Windows 7 within VMWare Fusion or Virtual Box. Within the VM I will be running IIS, SQL Server, Visual Studio and SharePoint Server. Hence why I would like to have the power of the i7 processor. That is why I wanted to check with actually owners of the MacBooks with the i7 processor and see what their experiences have been. Have you noticed excessive heat? How does your Macbook handle process intensive apps over long periods of time? Thank you!

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  • Laptop Overheating with Windows 8

    - by Dany Khalife
    I recently installed Windows 8 on my HP G62 Laptop and i have been noticing a very strange problem with it. Let alone, for lets say 5 minutes, without even touching it, it starts to heat up and it reaches about 60 degrees (Celsius) with absolutely no applications open (not just on desktop but overall). I dug in a little deep and found out that Maintenance was running when the computer was Idle, so i turned that off From the System's Task Scheduler, and while there i also turned off other services i did not need hoping that would solve the problem. So after a few days, i noticed that the average temperature of my laptop dropped from 55 to 48 degrees while working on Visual Studio. And when i thought the problem had disappeared, it still did show up, only not after 5 minutes, but more like 10 minutes... Here is what i have done so far: Replacing the thermal paste on the CPU and the fan and cleaning the fan (this was like 6 months ago) Using a laptop cooler Running a virus scan (i just formatted my laptop so it would be really weird if i already caught something but who knows) Right now, i believe it has something to do with my gfx driver (Even though it IS up to date, looking closely at the screen, i can see the pixels slowly refresh (kinda like watching static on TV) which i wasn't able to do on Windows 7. If you have any ideas, let me know. Thanks

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  • Is there any way to tweak / rotate mouse orientation? Any applications? Registry edits?

    - by calbar
    I've got a very frustrating issue with my new Logitech Marathon Mouse M705. It is absolutely perfect for what I need, with the exception that it tracks on an angle for some reason. What I mean is when you slide the cursor to the left, it trends upward - when you slide to the right, it trends down. Moving the cursor along a flat horizontal line is no longer a natural motion - you need to fight what I suspect is a mechanical error of some kind. Unfortunately, I've already exchanged this mouse once and tested both on different Windows 7 and Mac OS X machines - the problem continues to occur. Is there a software solution for me? I'm incredibly surprised there is no simple way to adjust the orientation... how can every mouse manufacturer possibly adjust their hardware to track to everyone's tastes? What about those who need to flip orientation a full 90 or 180 degrees? I only need to adjust mine a few degrees, but I'm sure that need has arisen as well. Anyway, I'm running the latest SetPoint drivers (6.00) on Windows 7 and there are no orientation options available. I've checked out uberOptions and the M705 isn't supported yet (with the last version update over 6 months ago). MAF Mouse instructions are a very strange series of mouse clicks to activate. This app also seems a little overkill and costs $$ (which I'm willing to pay as a last resort). Is there no universal registry value for mouse orientation? How about for SetPoint drivers specifically? I've done a simple search in regedit without any luck. An XML file somewhere? Anything?

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  • PC dies when running at 100% CPU

    - by user155631
    I recently wrote some Java code to generate images of the Mandelbrot set (fractal). I made use of the new Fork/Join facility in Java 7 to run separate threads on all four cores (2 real, 2 virtual)simultaneously, using a large number of iterations for greater accuracy. The problem is, the process runs fine for about a minute, and then it's as if someone has pulled the plug and the PC just dies. I thought it must be the CPUs overheating, so I ran Real Temp to monitor the temperature. It's an Intel i3 processor. I can see the temperature creeping up to 70 degrees, and then it seems to level off there and run for about another 30 seconds before dying. According to Real Temp, there's still a gap of 35 degrees between the actual temperature and TJ max. I also tried disabling "CPU TM function" in the BIOS, but the problem still occurs. A colleague suggested that it might be a power supply problem, so I borrowed a more powerful PSU (can't remember what wattage it was, but it's higher than mine which is 500W). The exact same thing still happens though. Is anyone able to suggest what the problem might be, or what I can try next?

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