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  • High volume SVM (machine learning) system

    - by flyingcrab
    I working on a possible machine learning project that would be expected to do high speed computations for machine learning using SVM (support vector machines) and possibly some ANN. I'm resonably comfortable working on matlab with these, but primarly in small datasets, just for experimentation. I'm wondering if this matlab based approach will scale? or should i be looking into something else? C++ / gpu based computing? java wrapping of the matlab code and pushing it onto app engine? Incidentally, there seems to be a lot fo literature on GPUs, but not much on how useful they are on machine learning applications using matlab, & the cheapest CUDA enlabled GPU money can buy? is it even worth the trouble?

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  • how do I tether my computer and blackberry?

    - by el chief
    I have Windows 7 Home Premium Blackberry Curve 9300 6.0 bundle 1478 (v6.0.0.380, platform 6.6.0.86) desktop software 6.0.0.380 I was able to connect with desktop software version 5 but 6 does not work. I am able to connect to the internet just fine with the device itself (ie can browse the web). How can I debug this? update: here's the error message: when i try to connect i get the message "failed to start mobile internet. the specified port is not open. please check your profile settings and make sure your radio is turned on. this service might also have been turned off by your wireless service provider or your administrator"

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  • How to open an iPhone compatible M3U file on Windows?

    - by user1158667
    This is how the M3U file looks like: #EXTM3U #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1400000 http://maskedip/http_livestr.str?r=true&id=mbit-test&k=testkey #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=900000 http://maskedip/http_livestr.str?r=true&id=test&k=testkey #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=450000 http://maskedip/http_livestr.str?r=true&id=mobile-test&k=testkey #EXT-X-STREAM-INF:PROGRAM-ID=1,CODECS="mp4a.40.2",BANDWIDTH=64000 http://maskedup/http_livestr.str?r=true&id=test-audio&k=testkey Clicking on http://maskedip/http_livestr.str?r=true&id=mbit-test&k=testkey then returns another M3U file in this format: #EXTM3U #EXT-X-TARGETDURATION:10 #EXT-X-MEDIA-SEQUENCE:1361 #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1361.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1362.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1363.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1364.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1365.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1366.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1367.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1368.ts #EXTINF:10, http://maskedip/http_ls/testkey/mbit-test1/1369.ts Anyways, VLC won't recognize it. How can I play this on the PC?

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  • 3 dimensional bin packing algorithms

    - by BuschnicK
    I'm faced with a 3 dimensional bin packing problem and am currently conducting some preliminary research as to which algorithms/heuristics are currently yielding the best results. Since the problem is NP hard I do not expect to find the optimal solution in every case, but I was wondering: 1) what are the best exact solvers? Branch and Bound? What problem instance sizes can I expect to solve with reasonable computing resources? 2) what are the best heuristic solvers? 3) What off-the-shelf solutions exist to conduct some experiments with?

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  • My acer aspire laptop suddenly stopped working, just a blank screen

    - by mazda
    My acer aspire laptop suddenly stopped working while it was connected to my nokia mobile modem through usb. It stopped with power swich staying on and no response to clicking off, no irregular sound, nothing but just a blank screen. I disconnected the power and battery quickly but power switch did not respond at all and even the power indicator didn't turn on again. the display was also gone after disconecting the power and removing battery. It has no response or any sign of power while both battery and power supply are working. What do you think? A completely dead mainboard? Does the MB has any safty board or fuse that could be replaced? Any suggestion will be appreciated, Thank you.

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  • Resulting .exe from PyInstaller with wxPython crashing

    - by Helgi Hrafn Gunnarsson
    I'm trying to compile a very simple wxPython script into an executable by using PyInstaller on Windows Vista. The Python script is nothing but a Hello World in wxPython. I'm trying to get that up and running as a Windows executable before I add any of the features that the program needs to have. But I'm already stuck. I've jumped through some loops in regards to MSVCR90.DLL, MSVCP90.DLL and MSVCPM90.DLL, which I ended up copying from my Visual Studio installation (C:\Program Files\Microsoft Visual Studio 9.0\VC\redist\x86\Microsoft.VC90.CRT). As according to the instructions for PyInstaller, I run: Command: Configure.py Output: I: computing EXE_dependencies I: Finding TCL/TK... I: could not find TCL/TK I: testing for Zlib... I: ... Zlib available I: Testing for ability to set icons, version resources... I: ... resource update available I: Testing for Unicode support... I: ... Unicode available I: testing for UPX... I: ...UPX available I: computing PYZ dependencies... So far, so good. I continue. Command: Makespec.py -F guitest.py Output: wrote C:\Code\PromoUSB\guitest.spec now run Build.py to build the executable Then there's the final command. Command: Build.py guitest.spec Output: checking Analysis building Analysis because out0.toc non existent running Analysis out0.toc Analyzing: C:\Python26\pyinstaller-1.3\support\_mountzlib.py Analyzing: C:\Python26\pyinstaller-1.3\support\useUnicode.py Analyzing: guitest.py Warnings written to C:\Code\PromoUSB\warnguitest.txt checking PYZ rebuilding out1.toc because out1.pyz is missing building PYZ out1.toc checking PKG rebuilding out3.toc because out3.pkg is missing building PKG out3.pkg checking ELFEXE rebuilding out2.toc because guitest.exe missing building ELFEXE out2.toc I get the resulting 'guitest.exe' file, but upon execution, it "simply crashes"... and there is no debug info. It's just one of those standard Windows Vista crashes. The script itself, guitest.py runs just fine by itself. It only crashes as an executable, and I'm completely lost. I don't even know what to look for, since nothing I've tried has returned any relevant results. Another file is generated as a result of the compilation process, called 'warnguitest.txt'. Here are its contents. W: no module named posix (conditional import by os) W: no module named optik.__all__ (top-level import by optparse) W: no module named readline (delayed, conditional import by cmd) W: no module named readline (delayed import by pdb) W: no module named pwd (delayed, conditional import by posixpath) W: no module named org (top-level import by pickle) W: no module named posix (delayed, conditional import by iu) W: no module named fcntl (conditional import by subprocess) W: no module named org (top-level import by copy) W: no module named _emx_link (conditional import by os) W: no module named optik.__version__ (top-level import by optparse) W: no module named fcntl (top-level import by tempfile) W: __all__ is built strangely at line 0 - collections (C:\Python26\lib\collections.pyc) W: delayed exec statement detected at line 0 - collections (C:\Python26\lib\collections.pyc) W: delayed conditional __import__ hack detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed exec statement detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed conditional __import__ hack detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed __import__ hack detected at line 0 - encodings (C:\Python26\lib\encodings\__init__.pyc) W: __all__ is built strangely at line 0 - optparse (C:\Python26\pyinstaller-1.3\optparse.pyc) W: __all__ is built strangely at line 0 - dis (C:\Python26\lib\dis.pyc) W: delayed eval hack detected at line 0 - os (C:\Python26\lib\os.pyc) W: __all__ is built strangely at line 0 - __future__ (C:\Python26\lib\__future__.pyc) W: delayed conditional __import__ hack detected at line 0 - unittest (C:\Python26\lib\unittest.pyc) W: delayed conditional __import__ hack detected at line 0 - unittest (C:\Python26\lib\unittest.pyc) W: __all__ is built strangely at line 0 - tokenize (C:\Python26\lib\tokenize.pyc) W: __all__ is built strangely at line 0 - wx (C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx\__init__.pyc) W: __all__ is built strangely at line 0 - wx (C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx\__init__.pyc) W: delayed exec statement detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed eval hack detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed eval hack detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed __import__ hack detected at line 0 - pickle (C:\Python26\lib\pickle.pyc) W: delayed __import__ hack detected at line 0 - pickle (C:\Python26\lib\pickle.pyc) W: delayed conditional exec statement detected at line 0 - iu (C:\Python26\pyinstaller-1.3\iu.pyc) W: delayed conditional exec statement detected at line 0 - iu (C:\Python26\pyinstaller-1.3\iu.pyc) W: delayed eval hack detected at line 0 - gettext (C:\Python26\lib\gettext.pyc) W: delayed __import__ hack detected at line 0 - optik.option_parser (C:\Python26\pyinstaller-1.3\optik\option_parser.pyc) W: delayed conditional eval hack detected at line 0 - warnings (C:\Python26\lib\warnings.pyc) W: delayed conditional __import__ hack detected at line 0 - warnings (C:\Python26\lib\warnings.pyc) W: __all__ is built strangely at line 0 - optik (C:\Python26\pyinstaller-1.3\optik\__init__.pyc) W: delayed exec statement detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed conditional eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed conditional eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) I don't know what the heck to make of any of that. Again, my searches have been fruitless.

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  • Restoring an Exchange 2010 user's calendar without rest of mailbox

    - by AlamedaDad
    I am trying to restore a user's calendar from backup, which was deleted by a sync problem on her mobile device. I've been able to restore her mailbox without a problem but I had to link it to a new AD user since she deleted the calendar several days before she reported the problem and the current backups of her account didn't include any calendar events, but all of her current email. I had to restore the mailbox from the day before she deleted everything. I've tried sharing the calendar and opening it in her account, then copying or moving the contents, but I get an error that outlook can't do the task because there are personal items. I tried bringing up the "Recovery User" I created, in Outlook and exporting the calendar events to a .pst, then importing them into the user's real account, but they all get created in a sub-folder called "Recovery User." In case it matters, she's running Outlook 2010 and we're using Exchange 2010 SP1. Thank in advance for help with this problem...Michael

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  • Two network cards in one Windows 7 PC

    - by Martin
    Hi, I've upgraded from Vista to Windows 7. On Vista I used to run one network card (Intel 82566DC -2 Gigabit) for my internet which was connected to a Dovado USB mobile broadband router connected to a 3G modem. The IP setup on the card is set on DHCP. The second card (3com Ethernet link) was used to connect to our town's local WUG (wireless user group) and all worked fine. Now the problem I have with Windows 7 is that when I connect to the internet with the (Intel) first card, the internet work fine but as soon as I connect the second card to the wug my internet drops. If I then disconnect the first card (internet one) and try to connect to the wug it works. It seems that the two cards are fighting each other. Is there maybe something I can do to fix the problem? As you probably can gather from this post is that I am not an expert on PC's so please if you do answer do I in simple terms. :) Thanks, Martin

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  • Windows Series Phone 7 "Cloud"

    - by user275561
    I have been reading up on "Cloud computing" on here and still not getting it. Basically I want to develop for the WP7 http://msdn.microsoft.com/en-us/library/ff402531%28v=VS.92%29.aspx#AppPlat_Overview_Arch Now it mentions everything as being in the "Cloud". Is any server just a cloud? If i have a WCF service or wsdl on my server. Can I consider myself that "Cloud"? Or is there something that a server emits that checks whether or not it is a cloud?

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  • What ssh command would I use to set up "backwards listening"

    - by Nathan
    Machine A is behind a firewall. I have physical access to it, but I want to log into it remotely, and I do not have access to the firewall settings. Machine B is remote, and not behind any firewall. (It's my linode) Machine C is the mobile device I'm going to attempt to ssh into A from. Is there an ssh command that I can run from machine A that connects to machine B and stays open, that will allow me to log into A from C, via B? From the manual I'd guess it would be to run the follwing on A ssh -R *:9999:localhost:22 me@B and then run this on C ssh me@B -p 9999 but the previous command reports "Connection refused."

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  • Why isn't pyinstaller making me an .exe file?

    - by Matt Miller
    I am attempting to follow this guide to make a simple Hello World script into an .exe file. I have Windows Vista with an AMD 64-bit processor I have installed Python 2.6.5 (Windows AMD64 version) I have set the PATH (if that's the right word) so that the command line recognizes Python I have installed UPX (there only seems to be a 32-bit version for Windows) and pasted a copy of upx.exe into the Python26 folder as instructed. I have installed Pywin (Windows AMD 64 Python 2.6 version) I have run Pyinstaller's Configure.py. It gives some error messages but seems to complete. I don't know if this is what's causing the problem, so the following is what it says when I run it: C:\Python26\Pyinstaller\branches\py26winConfigure.py I: read old config from C:\Python26\Pyinstaller\branches\py26win\config.dat I: computing EXE_dependencies I: Finding TCL/TK... I: Analyzing C:\Python26\DLLs_tkinter.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs_tkinter.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs_ctypes.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs_ctypes.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\select.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\select.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\unicodedata.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\unicodedata.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\bz2.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\bz2.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\python.exe I: Dependent assemblies of C:\Python26\python.exe: I: amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_none I: Searching for assembly amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_ none... I: Found manifest C:\Windows\WinSxS\Manifests\amd64_microsoft.vc90.crt_1fc8b3b9a 1e18e3b_9.0.21022.8_none_750b37ff97f4f68b.manifest I: Searching for file msvcr90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcr90.dll I: Searching for file msvcp90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcp90.dll I: Searching for file msvcm90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcm90.dll I: Adding Microsoft.VC90.CRT\Microsoft.VC90.CRT.manifest I: Adding Microsoft.VC90.CRT\msvcr90.dll I: Adding Microsoft.VC90.CRT\msvcp90.dll I: Adding Microsoft.VC90.CRT\msvcm90.dll W: Cannot get binary dependencies for file: W: C:\Python26\python.exe W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\Manifests\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e 3b_9.0.21022.8_none_750b37ff97f4f68b.manifest I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcr90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcr90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcp90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcp90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcm90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcm90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: could not find TCL/TK I: testing for Zlib... I: ... Zlib available I: Testing for ability to set icons, version resources... I: ... resource update available I: Testing for Unicode support... I: ... Unicode available I: testing for UPX... I: ...UPX available I: computing PYZ dependencies... I: done generating C:\Python26\Pyinstaller\branches\py26win\config.dat My Python script (named Hello.py) is the same as the example: #!/usr/bin/env python for i in xrange(10000): print "Hello, World!" This is my BAT file, in the same directory: set PIP=C:\Python26\Pyinstaller\branches\py26win\ python %PIP%Makespec.py --onefile --console --upx --tk Hello.py python %PIP%Build.py Hello.spec When I run Hello.bat in the command prompt several files are made, none of which are an .exe file, and the following is displayed: C:\My Filesset PIP=C:\Python26\Pyinstaller\branches\py26win\ C:\My Filespython C:\Python26\Pyinstaller\branches\py26win\Makespec.py --onefil e --console --upx --tk Hello.py wrote C:\My Files\Hello.spec now run Build.py to build the executable C:\My Filespython C:\Python26\Pyinstaller\branches\py26win\Build.py Hello.spec I: Dependent assemblies of C:\Python26\python.exe: I: amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_none Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1359, in main(args[0], configfilename=opts.configfile) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1337, in main build(specfile) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1297, in build execfile(spec) File "Hello.spec", line 3, in pathex=['C:\My Files']) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 292, in _init _ raise ValueError, "script '%s' not found" % script ValueError: script 'C:\Python26\Pyinstaller\branches\py26win\support\useTK.py' n ot found I have limited knowledge with the command prompt, so please take baby steps with me if I need to do something there.

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  • Updating a Cuda 4.0 project to Cuda 4.2

    - by aljndrrr
    I have a VS2010 project that was tested with CUDA 4.0, today I installed CUDA 4.2 and I want to update this project, the problem is that when I try to run the project it asks me for cudart32_40_17.dll, but since this is CUDA 4.2 I only have on my folders (C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.2\bin) cudart32_42_9.dll. I already set the Build Customizations to Cuda 4.2 and it compiles without any problem, the only problem is when I try to run it, the app asks me for the previous version of the dll. Is there a way to especify that the project must use cudart32_42_9.dll?

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  • How to efficiently merge a lot of vCard files for the same person?

    - by mihi
    I currently have contact information at several places: old PDA's address book mobile phone's phone book (primarily name, phone number) email client's address book (primarily name, email) web mailer's address book (primarily name, email) instant messenger's contact list (primarily name, im, email, birthday) And there are several social or business networking sites on the Internet where contacts provide information about themselves, like LinkedIn or XING. All those sources can export as vCard, but as you might imagine, I get a lot of vCards for the very same contact that way. Are there any tools where I can import them and then merge them (it may ask me which phone number is more current in case of field clashes of course)? Bonus points if it can track which information I have discarded so when I re-export all information from one of the sources I can't import to (networking sites), it won't ask me again if I want to overwrite phone number of person X with the same ancient number... I hope you understand what I try to accomplish, if not just ask :-)

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  • Extrapolation using fft in octave

    - by CFP
    Using GNU octave, I'm computing a fft over a piece of signal, then eliminating some frequencies, and finally reconstructing the signal. This give me a nice approximation of the signal ; but it doesn't give me a way to extrapolate the data. Suppose basically that I have plotted three periods and a half of f: x -> sin(x) + 0.5*sin(3*x) + 1.2*sin(5*x) and then added a piece of low amplitude, zero-centered random noise. With fft/ifft, I can easily remove most of the noise ; but then how do I extrapolate 3 more periods of my signal data? (other of course that duplicating the signal). The math way is easy : you have a decomposition of your function as an infinite sum of sines/cosines, and you just need to extract a partial sum and apply it anywhere. But I don't quite get the programmatic way... Thanks!

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  • chomsky hierarchy and programming languages

    - by dader51
    Hi, I'm trying to learn some aspects of the CH ( chomsky hierarchy ) which are related to PL ( programming languages ), and i still have to read the Dragon Book. I've read that most of the PL can be parsed as CFG ( context free grammar ). In term of computational power, it equals the one of a pushdown non deterministic automaton. Am I right ? If it's true, then how could a CFG holds a UG ( unrestricted grammar, which is turing complete ) ? I'm asking because, even if PL are CFG they are actually used to describe TM (turing machines ) and through UG. I think that's because of at least two different levels of computing, the first, which is the parsing of a CFG focuses on the syntax related to the structure ( representation ? ) of the language, while the other focuses on the semantic ( sense, interpretation of the data itself ? ) related to the capabilities of the pl which is turing complete. Again, are these assumptions rights ? thanx a lot.

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  • How can I get 32-bit Direct3D working on my 64-bit Windows 7 system?

    - by Daniel Stutzbach
    I recently upgraded a Dell Inspiron 6400 to Windows 7 Ultimate 64-bit. I have a 32-bit 3D application that refuses to run, giving an error of "Failed to initialise [sic] Direct3D device". The dxdiag tool tells me: DirectDraw Acceleration: Enabled Direct3D Acceleration: Not Available However, the 64-bit version of dxdiag tells me: DirectDraw Acceleration: Enabled Direct3D: Enabled I have installed and re-installed the latest graphics drivers, as well as the DirectX 9 redistributable, but it stills fails in the same way. dxdiag reports the chipset name as the "Mobile Intel(R) 945 Express Chipset Family" with the the Chip Type as "Intel(R) GMA 950". The main driver is igdumd64.dll, version 8.15.10.1930. How can I get 32-bit Direct3D working?

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  • Remotely turn on a device that is powered off?

    - by njboot
    Verbatim from the interview between Brian Williams and Edward Snowden last night: Snowden: Any intelligence service in the world that has significant funding and a real technological research team can own that phone [refering to Williams' iPhone] as soon as it connects to a network; it can be theirs. Williams: Can anyone turn it on remotely if it's off? Snowden: They can absolutely turn it on with the power turned off on the device. I concede Snowden's first point, fine. But the last? Does Snowden's last claim, that a powered off mobile device can be remotely turned, have any merit? It seems highly improbable and seemingly impossible.

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  • How does ARM Cortex A8 compare with a modern x86 processor

    - by thomasrutter
    I was wondering how does a modern ARM chip based on ARM Cortex A8 compare, in clock-for-clock performance and capability, to a modern x86 chip such as a Core 2 Duo or Core i5? I realise due to the different instruction sets it'll depend heavily on what you're doing. To put it another way, rendering a web page in webkit on a 1GHz ARM Cortex A8 based chip should be about equivalent to doing in on a Core i5 at __ MHz? Update October 2013: Since I asked this question years ago it's become a lot more common, when reading about mobile devices, to see architecture-agnostic benchmarks that you can compare across platforms - for example, in-browser benchmarks like Sunspider in Webkit will run on just about anything and you see these in reviews all the time now. And there's things like Geekbench now.

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  • X locks up with konqueror on comics.com

    - by retracile
    If I browse to comics.com using konqueror under KDE on Fedora 11, X will, after a delay, lock up. The mouse will move, but no keyboard input is recognized, and the screen does not react to the mouse passing over objects on screen. I am able to ssh into the machine and issue shutdown -r now and have that work. The machine is a Dell XPS M1330 with Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c), and Fedora 11 is fully updated. Visiting the same site in Firefox does not cause a lockup. I am booting with nomodeset since it won't boot into X otherwise. I tried the other two accel options: EXA (still locks up) and XAA (X won't start). Any suggestions on how I can debug this? bugzilla

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  • GWT 2.X No resource found for key

    - by Han Fastolfe
    I've developed a GWT app using i18n internationalization. In Host/Dev mode it works fine, but launching GWT compile gives this error: No resource found for key xxx, like below. Compiling module ...rte.RTE Scanning for additional dependencies: file:/home/.../client/i18n/RTEValidationMessages.java Computing all possible rebind results for '...client.i18n.RTEMessages' Rebinding ...client.i18n.RTEMessages Invoking com.google.gwt.dev.javac.StandardGeneratorContext@e7dfd0 Processing interface ...client.i18n.RTEMessages Generating method body for txtIndirizzo3() [ERROR] No resource found for key 'txtIndirizzo3' Messages are loaded with late binding. public class RTEValidationMessages { private RTEMessages additionalMessages; public RTEValidationMessages() { additionalMessages = GWT.create(RTEMessages.class); } } Deleting the method which gives the error, results in another random method with error, say not the method before or after in the interface ...client.i18n.RTEMessages. Help is greatly appreciated.

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  • Invalid domains in DNS don't work on mac/*nix like systems

    - by David Mulder
    At work we use domains like abc-01, which work fine on windows. Whilst developing mobile applications we already saw that this doesn't work on both iOS and android which we fixed for a few specific domains (by setting the dns up that abc-01.def.local also works in those) and was assumed to be caused by it being an invalid domain. Now however it's necessary to connect through VPN from a mac and changing all relevant domains is not an option at the moment (far too many of them and would require changing the settings of far too many applications), so I was hoping whether somebody knows a trick or setting to get this to work on mac (or even linux in general).

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  • Manage MS SQL server over SSH (putty)

    - by adopilot
    There is great implementation of PuttY for Symbian S60 devices, and last versions of Nokia phones with full QWERTY keyboard offers comfort for using Putty and SSH goodies. I start wondering is there a way to access MSSQL over SSH and send T-SQL commands. I am able to connect my router which running on FreeBSD OS, also other CentOS server with MYSQL are able to me over SSH. I want to try access MS-SQL-2005 from my mobile phone, Probably this is not going to have daily use, it is just for geeky and justification to myself: why I had to buy so expensive a toy

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  • How to contact an emergency service using only Internet?

    - by Vi.
    Suppose you are apart from the mobile or whatever phone (so can't call 112 or 911 or 999), but have have access to a computer with internet connection. How do you call/message an emergency service (of whatever country in hope they will route the request to the correct destination) using only Internet? Maybe there's some 911-like website or public SIP or whatever? Or better go to some chat/forum/StackExchange/whatever and ask somebody to make a call for you? (will users really believe?) /* 1. I'm not in any emergency, just curious. 2. I'm not sure on what SE site to ask this question. */

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  • Rewrite URL before passing to proxy Lighttpd

    - by futureelite7
    Hi, I'm trying to setup a reverse proxy in lighttpd, such that all requests (and only those requests) under /mobile/video is redirected to the / directory of a secondary web server. This is pretty easy in apache, but I can't for the life of me figure out how to do so in lighttpd. $HTTP["url"] =~ "^/wsmobile/video/" { url.rewrite-once = ( ".*" => "/test/" ) proxy.server = ( "" => ( ( "host" => "210.200.144.26", "port" => 9091 ) ) ) } I've tried using the http["url"] directive, but lighttpd simply ignore those requests and continue to pass the full url to the secondary server, which of course chokes and throws 404s. However, if I do a global rewrite then everything gets forwarded to the secondary server, which is also not what I want. How do I go about this task?

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  • Is there any SMS/MMS server for LAN environment

    - by Chau Chee Yang
    I am looking for a solution to send SMS/MMS message to mobile device from desktop or browser in LAN environment. As such, it is most probably using TCP/IP protocol to transmit request/response. The server may attach to a GSM device with SIM card attached. An server application would then start accept the request from any LAN client and convey the SMS/MMS to one or more recipients. The server may log all requests for further traffic analysis in later stage. Is there any solution that able to perform what I describe here. Please advice.

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