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  • power function in blackberry

    - by Rahul Varma
    Hi, I desperately need a solution for this... I m using Blackberry JDE 5.0. In documentation it shows net.rim.device.api.util.MathUtilities.pow ( double double ) is added form 4.6. But i couldnt get pow function when i use Math.pow(). I need to get this value...float fSecondFactor=(float) (Math.pow(1+fRatePerMonth,fNumberofMonths)-1); Can anyone tell me how to achieve this...Plzz....

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  • Article about code density as a measure of programming language power

    - by prosseek
    I remember reading an article saying something like "The number of bugs introduced doesn't vary much with different programming languages, but it depends pretty much on SLOC (source lines of code). So, using the programming language that can implement the same functions with smaller SLOC is preferable in terms of stability." The author wanted to stress the advantages of using Functional Programming, as normally one can program with a smaller number of LOC. I remember the author cited a research paper about the irrelevance of choice of programming language and the number of bugs. Is there anyone who knows the research paper or the article?

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  • Whats the most common waste of computing power in javascipt

    - by qwertymk
    We've all seen people who do this jQuery('a').each(function(){ jQuery(this)[0].innerHTML += ' proccessed'; }); function letsPoluteNS() { polute = ''; for (morePolution = 0; morePolution < arguments.length; morePolution++) polute.join(arguments[morePolution]); return polute; } and so on. I was wondering what people have seen the most common javascript/jQuery technique that is slowing down the page and/or wasting time for the javascript engine. PS I know that this question may not seem to fit into whats an accepted question, yet I'm asking for what the most common accepted waste is

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  • What power do I have over my license?

    - by DavidG
    Say for example, I've written some code under GPL 3. My company wants to use that code for a commercial product. Am I allowed to then say to them that they can use it under LGPL/MIT or any other license? If so, would I then have to change the included header at the top of each file? If so, what is stopping someone else from changing the license on my code?

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  • inverse relation to multiple inheriting classes in django

    - by Ofri Raviv
    Here are my schematic models: class Law(models.Model): ... class Bill(models.Model): ... # data for a proposed law, or change of an existing law class PrivateBill(Bill): ... # data for a Bill that was initiated by a parliament member class GovernmentBill(Bill): ... # data for a Bill that was initiated by the government It is possible and likely that in the future I (or maybe someone else) would want to add more Bill types. Every Bill should point to a Law (indicating what law this bill is going to change) and my question is: What is the best way to implement this? If I add the ForeignKey(Law) to Bill, I'll have a relation from every Bill to Law, but a Law would only have an inverse relation to Bills (bill_set), and not a different inverse relation to each type of bill. Of course I'll be able to filter each type of bill to get only the ones pointing to a specific Law, but this is something I think I'll need to use often, so I think having privatebill_set, governmentbill_set etc would make the code more readable. Another possible solution is to add the foreign key to each of the inheriting classes (this would give me a privatebill_set, governmentbill_set, futurebill_set), but that seems hairy because I would be relying on future programmers to remember to add that relation. How would you solve this?

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  • Why PC reboots when there’s a power failure even with UPS?

    - by Jamil
    I've purchased a Line Interactive UPS 1200VA. It's supposed to give 8~20min backup (as written in the manual). This UPS has transfer time < 10ms. It works fine when the mains is active. But the problem is that when the power went off, the PC also went off for a fraction of a second and started rebooting. The strangest thing though is that it has to be a proper power failure by the service supplier. If I just turn off the power at the wall plug, the UPS kicks in immediately and the PC carries on working fine. What's the solution of that? What should I do? My hard drive was physically damaged because of improper shut down & restart. I've 5~8 times power outage in my country so I badly need an UPS.

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  • UPS: Do i require a special extension cord for power in?

    - by rism
    I have a couple of Tripplite UPS systems. The power in cables are bright orange and about 2 meters in length. I want to put the system on the other side of the room but for some reason the UPS keep "going off" over there. So I guess the wall power sockets on that side of the room are a little dodgy. So i figured Id just go online and get some replacement UPS power IN (from wall to UPS) cables of an appropriate length. But i cant find any anywhere. (auction sites, tripplite store, cable websites). So now I'm wondering if that's just because you can use a standard extension cord of an appropriate wattage? I thought the UPS power IN cables were "special". Is that not so?

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  • VMware Workstation "Power off" and "Suspend" buttons are disabled. What is going on?

    - by Ed Norris
    I've been using an XP image for a few months now with no problems. Recently the power off and resume buttons were disabled and I'm not sure what happened to cause that. In addition, the menu items to do those functions are grayed out (like VM | Power | Power Off) I'm using VMware Workstation 6.5.3 on a Windows 7 64-bit host. The image is Windows XP 32-bit. There is plenty of free space and memory on the host and the CPU is not pegged. I am able to power off the image through its Start menu, but that's a workaround not a fix. Any suggestions? TIA EDIT: Well after manually shutting down the image then closing and reopening the image file (which I've done before) in preparation for reinstalling the tools as suggested below, it looks fine. The power off and suspend buttons are enabled and work. So what do I do with this question now? "Close and restart a few times and it may work" doesn't seem useful...

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  • Can a motherboard be faulty even if it's getting power and so are components hooked up to it?

    - by Davy8
    Sort of a followup to this question. The mobo's getting power, the lights are on. The GPU fan is spinning (it doesn't use auxiliary power, it's only connected to the mobo). I'm not getting any video signal, and it's not the video card (nor monitor) that's faulty, so I'm suspecting mobo or CPU (possibly RAM?) and I'm trying to pinpoint which part is at fault. Is the motherboard a candidate for being broken or is it not very likely if it's getting power and powering other components? The CPU fan is getting power as well.

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  • Can I use stronger power supply to charge Kindle? [closed]

    - by Bobb
    I have power supply for Kindle with output 5V 0.85A. And I have Samsung Galaxy Pad one with output of 5V 2A. My guess is that a device will consume as much current as it can but no more than max power supply current. For example if Kindle device consumes 0.6A for charging its battery then it shouldnt create more than 0.6A current using Galaxy Pad power supply. So my guess - if I charge Kindle with Galaxy Pad power supply it wont burn out. Is that right?

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  • What is the justification for Python's power operator associating to the right?

    - by Pieter Müller
    I am writing code to parse mathematical expression strings, and noticed that the order in which chained power operators are evaluated in Python differs from the order in Excel. From http://docs.python.org/reference/expressions.html: "Thus, in an unparenthesized sequence of power and unary operators, the operators are evaluated from right to left (this does not constrain the evaluation order for the operands): -1*2 results in -1."* This means that, in Python: 2**2**3 is evaluated as 2**(2**3) = 2**8 = 256 In Excel, it works the other way around: 2^2^3 is evaluated as (2^2)^3 = 4^3 = 64 I now have to choose an implementation for my own parser. The Excel order is easier to implement, as it mirrors the evaluation order of multiplication. I asked some people around the office what their gut feel was for the evaluation of 2^2^3 and got mixed responses. Does anybody know of any good reasons or conciderations in favour of the Python implementation? And if you don't have an answer, please comment with the result you get from gut feel - 64 or 256?

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  • AHCI, Power Mode S3 and HPET 64bit - please help with these settings!

    - by thetattoo
    my problem is the that for a Hackintosh (unofficial PC running OS X) I needed to set AHCI, Power Mode S3 and HPET 64bit. Now, I want to install Ubuntu (when 12.04 comes out) and was wondering if these settings will be right to use for Ubuntu. I read that AHCI is how the hard disks are accessed, Power Mode S3 is how suspend works with the RAM but couldn't figure out if using HPET 64bit makes any difference than HPET 32bit. What I would like is an explanation of what these BIOS settings do and what is best for Ubuntu. Thank you very much

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  • Cant access Dell BMC IPMI Over IP

    - by Bobb
    I have Dell R210 with iDRAC BMC (new name for old BMC). Which is on-board feature with shared NIC (I believe). Server is on colocation and I didnt set it up before sent there... So I asked for the remote hands to setup IPMI Over IP. They enabled it, set the IP and everything. The IP is different than main box IP. Also the box is cabled to NIC1 and the BMC supposed to share it (am I right?) I can see new IP in the Open Server Administrator (installed on the box). I tried Supermicro IPMI tool and I tried Dell ipmish.exe command like this ipmish -ip xxx -u root -p calvin sysinfo gives BMC is not detected What could be wrong? is there a diagnostics tool I can try? It must be something obvious. I just never used things like that before.... P.S. I read something about encryptions key in the Dell docs. But I understand that is for encrypted IPMI 2.0 and ipmish can use IPMI 1.5 without encryption.

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  • Dell PSU Compatibility: Dell Inspiron 530 (Desktop)

    - by ashes999
    I have an Inspiron 530 with a stock PSU. I need to upgrade it to meet my video card's needs (AMD HD6770), which demands at least 450W, to potentially fix BSODs with the latest version of the drivers (so claims AMD support). Now, I've heard conflicting reports about whether Dell uses special/proprietary PSUs. (Examples for aye and nay to special PSUs.) How exactly can I determine if a PSU is compatible with my PC, before buying it? I assume I will not be able to return it if it doesn't fit, or makes my computer explode in a fireball of doom.

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  • What are good values for PSU voltages?

    - by earlz
    Hello, I have an odd computer I'm trying to fix that will crash only during the setup of an OS(crashes on every OS I've tried so far) It's not overheating and it is stripped down as much as possible and I've tried multiple harddrives, and memtest86+ can run on it for 3 hours without a crash or fail. So, I was a bit stumped and was looking in the BIOS for possible causes and found a hardware monitor that shows PSU voltages. They are: VCORE: 1.432V 3.3V: 3.136V 5V: 5.273 12V: 12.144V I thought the 3.3V looked a little low, but I'm not really sure on how "bad" that is. So, what are the good ranges for the voltages on each CPU rail?

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  • Macbook Pro with Windows 7 - GPU always on

    - by Joonas Pulakka
    Übergizmo is reporting an issue with the new Macbook Pros' GeForce 330M GPU being always "on" under Windows 7, and thus almost halving the battery life compared to that with OS X (which is able to somehow suspend that GPU and use the the low-end integrated GPU to do the light work). Any solutions, or rumors of coming solutions?

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  • PSU Suggestions for SLI EVGA GTX 680 + i7

    - by JMH
    So i am putting together a new machine and am trying to determine the best PSU to go with for this setup. Here is the build i am thinking about Processor Intel Core i7-3770K Ivy Bridge 3.5GHz Motherboard ASRock Z77 Professional Graphics Card (2 SLI) EVGA 02G-P4-2680-KR Sound Card HT | OMEGA eClaro 7.1 Fan/Heat Sync ZALMAN CNPS9500A-LED Case COOLER MASTER HAF X RC-942-KKN1 RAM G.SKILL Ripjaws X Series 32GB (4 x 8GB) SSD Of some Sort So my guess is that i need a 750 -1000W PSU, but which brand.... how much, etc --- really in the woods. Thanks -Josh

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  • Laptop wakes from sleep, once, due to audio controller (Windows 7)

    - by stijn
    The laptop is a recent Dell XPS 15z and the problem is as follows (reproducible about 90% of tries): put laptop to sleep using either Start-Sleep or closing the lid laptop goes to sleep after about 5 seconds, but instantly wakes again showing a black screen (touching the keyboard or moving the mouse shows the login screen one normally gets after wake) login again, put laptop to sleep latop stays in sleep mode output of powercfg -lastwake after the first instant wake shows the audio controller is responsible. Why would that be, why only the first try, and how to fix this? Wake History Count - 1 Wake History [0] Wake Source Count - 1 Wake Source [0] Type: Device Instance Path: PCI\VEN_8086&DEV_1C20&SUBSYS_04461028&REV_05\3&11583659&0&D8 Friendly Name: Description: High Definition Audio Controller Manufacturer: Microsoft

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  • What is preventing my computer from going idle?

    - by brianberns
    When I first boot my Windows 7 computer, it will go idle if I stop using it - first the screensaver comes on, then the computer goes to sleep after a certain amount of time. This is the expected behavior. However, after I've used the computer for awhile without rebooting (after about a day or so), I've noticed that it stops going idle - the screensaver won't come on, and the computer won't sleep, no matter how long it sits unused. I've confirmed that the idle timer is increasing as expected via GetLastInputInfo. However, it looks like something is interfering with the results from CallNtPowerInformation. Every 14 or 16 seconds, the TimeRemaining value jumps back up to its maximum value when I query SystemPowerInformation. I've used the SysInternals Process Monitor to detect any unusual events that might be happening to trigger this reset, but come up empty. Does anyone know exactly what are the possible causes of TimeRemaining resetting to its maximum value? I'm fairly sure that it's not my mouse, keyboard, or network sending spurious events, because I've disabled each one and the problem continues to occur. This would also reset the GetLastInputInfo timer, which is not happening. I'm looking for something that affects SystemPowerInformation TimeRemaining, but does not affect GetLastInputInfo. Thanks.

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  • MacBook Air: USB Hub Compatible with the MBA SuperDrive

    - by _ande_turner_
    A little background to those whom may think this Question to specific: The MacBook Air SuperDrive draws 1A vs 500mA of a normal USB device, and therefore you can't use a standard USB hub powered or unpowered because each port gets 500mA not 1A... Have any MacBook Air users found a USB hub which can accommodate the MBA SuperDrive and another peripheral?

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