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  • get height on a block of latex output

    - by georg raba
    Hello, I am trying to determine how to get the height on a block of latex output (not the whole document, and not the code..but rather a block of output). As an example of what I am trying to accomplish: i were to have the latex code $\sum_{i=0}^\infty \frac{1}{n}\infty$ \newline hello world \newline hello universe its output would be something like 2 inches high. Of course, the height of the above block of text is dependent on a number of things-font, margin size, etc, as changing any of these parameters changes how many inches that output would be. Is there a command/package that does this? Thanks in advance! Georg Raba

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  • Class Methods Inheritence

    - by Roman A. Taycher
    I was told that static methods in java didn't have Inheritance but when I try the following test package test1; public class Main { /** * @param args the command line arguments */ public static void main(String[] args) { TB.ttt(); TB.ttt2(); } } package test1; public class TA { static public Boolean ttt() { System.out.println("TestInheritenceA"); return true; } static public String test ="ClassA"; } package test1; public class TB extends TA{ static public void ttt2(){ System.out.println(test); } } it printed : TestInheritenceA ClassA so do java static methods (and fields have) inheritance (if you try to call a class method does it go down the inheritance chai looking for class methods). Was this ever not the case,are there any inheritance OO languages that are messed up like that for class methods?

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  • Programming a loopback-device consisting of several files in Linux

    - by dubbaluga
    Hej, it is relatively easy to use a file for emulating a block-device using losetup in Linux: http://www.walkernews.net/2007/07/01/create-linux-loopback-file-system-on-disk-file/ Can anyone please give me a hint on what to look for in case I want to program my own block-device which is based on several files I'm taking content from? For your understanding, I would like to let's say take bytes 1-500 and 1.000-3.000 from file1 and bytes 501-999 and bytes 3.001 to 5.000 from file2 to offer them as a combined block-device. My prefered programming language is Python and I want to write my program in user-space as much as possible. For Windows I found such an implementation. It's called FileDisk and HttpDisk and it can be found here: http://www.acc.umu.se/~bosse/ Thanks in advance and regards, Rainer

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  • circuit/block-diagram drawing

    - by JCLL
    I'm looking for either algorithms or visualization tool for (nice) circuit/block-diagram drawing. I am also interested in a general formulation of the problem. By "circuit drawing", I mean the capability of exploring place & route for block-diagrams (rectangles) with I/O ports and their connections (wires). These block-diagrams can be hierarchical i.e some blocks may have some nested internal sub-structure etc. This topic is strongly related to classical graph-drawing, with the supplemental constraint of the need to take ports location into account, and possibly the shape of the blocks (rectangle of various sizes). Graphviz tools do not respond to the problem (at least my previous experiments have not been satisfactory). Force-directed algorithms retain my attention, but I have just found papers on classical directed graphs. Any hints ?

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  • Context module for block visibility

    - by calebthorne
    I have a site built in Drupal 6 that requires a number of blocks that are only visible to certain roles or on specific pages. Normally, I would use the block configuration settings to control page and role visibility. However I recently ran across the context module that effectively splits the site into "sections" or "groups" of related attributes. My question is: When is it appropriate to control block visibility from context rather than the block configuration settings? Should I only use one or the other or a combination of both?

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  • Erubis block helper throwing error with concat

    - by DEfusion
    I have a couple of block helpers, here's a simple example of what I'm doing: def wrap_foo foo, &block data = capture(&block) content = " <div class=\"foo\" id=\"#{foo}\"> #{data} </div>" concat( content ) end I'm just trying out erubis and it's giving me the following error: You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.<< Removing the call to concat removes the error but ends up with my wrapper not being rendered Using: Rails 2.3.5 Erubis 2.6.5 And tried this gem that helps Erubis (though 2.6.4) and Rails 2.3 play better together

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  • Replacing multiple patterns in a block of data

    - by VikrantY
    Hi All, I need to find the most efficient way of matching multiple regular expressions on a single block of text. To give an example of what I need, consider a block of text: "Hello World what a beautiful day" I want to replace Hello with "Bye" and "World" with Universe. I can always do this in a loop ofcourse, using something like String.replace functions availiable in various languages. However, I could have a huge block of text with multiple string patterns, that I need to match and replace. I was wondering if I can use Regular Expressions to do this efficiently or do I have to use a Parser like LALR. I need to do this in JavaScript, so if anyone knows tools that can get it done, it would be appreciated.

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  • C# - Rollback SqlTransaction in catch block - Problem with object accessability

    - by Marks
    Hi there. I've got a problem, and all articles or examples i found seem to not care about it. I want to do some database actions in a transaction. What i want to do is very similar to most examples: using (SqlConnection Conn = new SqlConnection(_ConnectionString)) { try { Conn.Open(); SqlTransaction Trans = Conn.BeginTransaction(); using (SqlCommand Com = new SqlCommand(ComText, Conn)) { /* DB work */ } } catch (Exception Ex) { Trans.Rollback(); return -1; } } But the problem is, that the SqlTransaction Trans is declared inside the try block. So it is not accessable in the catch() block. Most examples just do Conn.Open() and Conn.BeginTransaction() before the try block. But i think thats a bit risky, since both can throw multiple exceptions. Am I wrong, or do most people just ignore this risk? Whats the best solution to be able to rollback, if an exception happens. Thanks in advance, Marks

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  • Drupal 6: Nice_menus module at navigation block.

    - by artmania
    Hi friends, I'm new at drupal. I installed Nice Menus Module. When I add to sidebar block at Blocks Settings Page, it works fine. but when I add it to Navigation block, it doesnt work :( it just display the parent links, not the child ones. my page.tpl.php <?php if (!empty($primary_links)): ?> <div id="nav" class="clear-block"> <?php print theme('links', $primary_links, array('class' => 'links primary-links')); ?> </div> <?php endif; ?> Should I add anything to the code above to turn to Nice Menu style? Appreciate helps!!! Thanks a lot!

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  • dismissViewControllerAnimated completion block presenter view and modal view flow

    - by Patricia LaRue
    I did find an answer to this title and I did do a little research but I'm still not getting the flow. Here is what I want to happen: 1) click a button on the presenter view to open a modal view. 2) retrieve some value and click a button to close the modal view....sending the value to the presentor view and execute a method. I get that this works like a callback but I still can't figure out where to put the callback stuff. So, how exactly do I do this? A) In the presentViewController completion block, should I include the presenter view method to execute when modal view is completed? Or: B) In the modal view's dismissViewControllerAnimated completion block, should I include the presenter view method to execute when modal view is completed? Can somebody help me with some sample code? Or at least help me get the flow of which block to put the code in? Thank you, P

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  • What are block expressions actually good for?

    - by Helper Method
    I just solved the first problem from Project Euler in JavaFX for the fun of it and wondered what block expressions are actually good for? Why are they superior to functions? Is it the because of the narrowed scope? Less to write? Performance? Here's the Euler example. I used a block here but I don't know if it actually makes sense // sums up all number from low to high exclusive which are divisible by a or b function sumDivisibleBy(a: Integer, b: Integer, high: Integer) { def low = if (a <= b) a else b; def sum = { var result = 0; for (i in [low .. <high] where i mod 3 == 0 or i mod 5 == 0) { result += i } result } } Does a block makes sense here?

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  • div block going to next line in Firefox

    - by user550265
    I have a div with display:block in my css. This div block uses the align = "absmiddle" . It displays all the elements in 1 line in Chrome. However, in firefox, the elements are displyed on to the next line as well. How do I get them to display in 1 single line in firefox. P.S: I have already tried display: inline but it does not bring it in 1 line. <div class="one"><input name="elementone" value="1" align="absmiddle" class="subone" /></div> Css is div.one,div.subone{ display:block; width:16px; height:100%; background-position:0 0px; border:0 }

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  • How to create 1280x720 music video with static pic

    - by monov
    I wanna upload a song to youtube, and put a static 1280x720 pic as the video. I'd like the format to be one of the recommended ones. I tried Windows Movie Maker 2.6 but it only generated a 640x480 video. I also tried Windows Live Movie Maker but it put a big black margin around my pic (and unexplicably, produced a video with a slightly lower volume). Do you know any way to do what I need?

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  • domain is pointing to default static page on server but settings look correct

    - by Cues
    I have edited my apache vhost file in /etc/apache2/sites-enabled to add the following: <VirtualHost *:80> ServerName www.mysite.cn ServerAlias mysite.cn *.mysite.cn DocumentRoot /home/user/static/mysite/cn </VirtualHost> It still points to the default site on the server when i browse to mysite.cn but when i enter anything along the lines of ww3.mysite.cn it point to the new correct document root any clues of what the problem could be as i am lost.

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  • Static build ffmpeg 0.8

    - by Riduidel
    Is there anywhere an available static build of ffmpeg with all encoder/decoders libs for Linux (not a source tarball, but a binary) ? Although this question seems trivial, I spent the last half hour looking for it, without any success. EDIT I'm looking for binary to be run on x86 Suse 10 systems. Notice I can't use local package manager as all update repositories have bene removed by admin (to avoid uncontrolled software update).

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  • browser blocking image download when nginx was placed infront of apache to serve static content

    - by railscoder
    I was tying to place nginx infront of apache to server static content. This set up was performing better than just having apache. but suddenly some change caused images getting blocked for like 2-3sec before actually downloading with apache+nginx setup. It doesnt happen with apache only set up? Any idea why it is happening with nginx? this was happening even i removed all external js from the page

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  • Ubuntu box static routing problem

    - by Rafael
    Hello, I'm trying to configure a ubuntu server to be a router. This is my interface configuration (eth2 connects to my WAN, eth0 to my LAN): auto eth2 iface eth2 inet static address 192.168.0.249 netmask 255.255.255.0 gateway 192.168.0.1 broadcast 192.168.0.255 auto eth0 iface eth0 inet static address 192.168.100.1 netmask 255.255.255.0 This is the router information: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth2 And this is dhcp configuration: subnet 192.168.100.0 netmask 255.255.255.0 { range 192.168.100.101 192.168.100.254; option domain-name-servers 201.70.86.133; option routers 192.168.100.1; authoritative; } I'm then connecting a mac os x by cable on eth0. This is en0 interface configuration: en0: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 ether 00:26:bb:5d:82:b0 inet6 fe80::226:bbff:fe5d:82b0%en0 prefixlen 64 scopeid 0x4 inet 192.168.100.101 netmask 0xffffff00 broadcast 192.168.100.255 media: autoselect (100baseTX <full-duplex>) status: active And this is the routing table: Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.100.1 UGSc 139 32 en0 10.37.129/24 link#8 UC 2 0 vnic1 10.37.129.2 0:1c:42:0:0:9 UHLWI 0 839 lo0 10.37.129.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vnic1 10.211.55/24 link#7 UC 2 0 vnic0 10.211.55.2 0:1c:42:0:0:8 UHLWI 0 840 lo0 10.211.55.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vnic0 127 127.0.0.1 UCS 0 0 lo0 127.0.0.1 127.0.0.1 UH 3 507924 lo0 169.254 link#4 UCS 0 0 en0 172.16.42/24 link#10 UC 2 0 vmnet8 172.16.42.1 0:50:56:c0:0:8 UHLWI 0 839 lo0 172.16.42.255 link#10 UHLWbI 1 24 vmnet8 192.168.100 link#4 UC 2 0 en0 192.168.100.1 0:e0:7c:7e:f:99 UHLWI 139 0 en0 777 192.168.100.101 127.0.0.1 UHS 0 0 lo0 192.168.100.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 en0 192.168.116 link#9 UC 2 0 vmnet1 192.168.116.1 0:50:56:c0:0:1 UHLWI 0 839 lo0 192.168.116.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vmnet1 When I ping 192.168.100.1, it works. When I ping 192.168.0.249, it also works. However, when I try to ping 192.168.0.1 it does not. Does anyone has any way to solve this? Is there a way to debug it? Thanks,

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  • Can't get my Raspberry Pi to keep a static IP

    - by JonnyIrving
    I recently got given a Raspberry Pi and I would like to be able to remote into it using puTTy from my laptop so I don't have to sit next to my tv with a keyboard and mouse to use it. I am able to get a puTTy session going when I know the IP address that my router has given the Pi on each session but it keeps changing on each reboot as I would expect. So I followed a number if instruction to go about configuring the RPi to keep a static IP address. This involved changing the file at '/etc/netwrok/interfaces' which now contains (password removed): auto lo iface lo inet loopback iface eth0 inet static address 192.168.1.82 netmask 255.255.255.0 gateway 192.168.1.254 auto wlan0 allow-hotplug wlan0 iface wlan0 inet dhcp wpa-ssid "BeBoxD304BF" wpa-psk "**********" Despite this however, each time I reboot my RPi it gives me a new dynamic IP address still. I also noticed that in the 'ifconfig' output below that the details of the eth0 doesn't contain IP details for inet addr, Bcast or Mask which have been present in all other examples I have seen online. eth0 Link encap:Ethernet HWaddr b8:27:eb:b5:95:da UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) wlan0 Link encap:Ethernet HWaddr 00:87:c6:00:33:77 inet addr:192.168.1.83 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:918 errors:0 dropped:0 overruns:0 frame:0 TX packets:277 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 Also I'm not sure if this is relevant but it can't hurt! The file at '/etc/resolv.conf' contains: domain config search config nameserver 192.168.1.254 ..I heard it might mean something on one of the pages I was looking at. I would be very grateful for any help with this. I have tried everything I can think of and would really like to get this working this weekend so I can use it from work.

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  • Setup a vpn server with a static IP with NAT and port forwarding

    - by Lorenzo Pistone
    I have a Debian VPS with an assigned static IP. I want to setup a virtual interface (with an ip like 192.168..) on my laptop (Ubuntu, dynamic IP) linked to the remote VPS, so that if I bind sockets to it the traffic is tunneled to the VPS and sent to the Internet from there. Port forwarding must be available. This looks like a job for a VPN software, but I'm clueless about the pieces of software needed. Any advice?

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  • Defining a persistent static route on Mac OS X

    - by Charles Duffy
    How does one define a static route on MacOS X which persists through reboots? The only suggestion I've found on Google advises setting up a launchd service to run at boot, which seems like a horrible hack (does it survive a network restart without rebooting, for instance?) To set up the route I need temporarily, I can run the following: route add -net ${network} ${gateway} ${netmask} How would I make this persist?

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  • anti-static foam under a motherboard?

    - by user29734
    I am modding out a custom built case/system. I have my motherboard mounted on a metal tray, (Dell did this) has been working great. Not I am modding the case to hold everything and how I want to mount the motherboard on the tray I have a slight gap between the wall of the case and the motherboard/tray. Can I put a piece of thin anti-static foam/packaging in between the tray and the case? That is safe right?

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