space

I would like to bin vectors in n-dimensional space. This can be done by pixelating the surface of an n-dimensional hypersphere. Does anyone know any good algorithms for pixelating a hypersphere in C? I would like constant bin sizes. My space consists of only positive integers. Do you need your bins to be perfectly regular? If not, just throw points out at random, and measure distance to the nearest neighbor. You could clean this up slightly by throwing away points that are too close, or running a few iterations of mutual repulsion. Otherwise, you probably want to convert to generalized

开发项目中会遇到Tomcat内存溢出( java.lang.OutOfMemoryError: PermGen space )的问题，通过查找资料找到是通过设置Tomcat 启动堆空间大小、年轻代大小、每个线程大小参数进行调优的，具体如下： 一、在Tomcat 启动脚本（catalina.sh/catalina.bat）首行添加如下配置即可解决此问题 JAVA_OPTS="-Xms2048m -Xmx2048m -Xmn1024m -Xss1024K -XX:PermSize=128m -XX:MaxPermSize=512m" 1：-Xms 堆空间初始大小 2：-Xmx 堆空间最大数值 3：-Xmn 年轻代的堆大小 4：-Xss 每个线程堆大小 二、JVM堆大小的默认最大和最小值（参考） 操作系统及JVM类型 初始堆的大小（Xms） 最大堆的大小（Xmx） Linux/Solaris，32位客户端 16MB 256MB Linux/Solaris，32位服务器 64MB 取1GB和物理内存大小1/4二者中的最小值 Linux/Solaris，64位服务器 取512MB和物理内存大小1/64二者中的最小值 取32GB和物理内存大小1/4二者中的最小值 MacOS，64位服务器型JVM 64MB 取1GB和物理内存大小1/4二者中的最小值 32位Window系统，客户端型JVM

how can i create a pre-allocated file on android? something like a sparse file ? i need to make an applicaton that will download a large file , and i want to avoid having an out-of-space error while the download is commencing . my solution needs to support resuming and writing to both internal and external storage. i've tried what is written here: Create file with given size in Java but for some reason, none of those solutions worked. this is odd. it works fine now . perhaps i've tested it in a wrong way. here's a working code , for those who have problems with it : final String path

street = (EditText) findViewById(R.id.street); InputFilter filter = new InputFilter() { public CharSequence filter(CharSequence source, int start, int end,Spanned dest, int dstart, int dend) { for (int i = start; i < end; i++) { if (!Character.isLetterOrDigit(source.charAt(i)) || !Character.isSpaceChar(source.charAt(i))) { return ""; } } return null; } }; street.setFilters(new InputFilter[] { filter }); my edittext is able to filter character & number on the virtual keyboard but not taking the space character.. plz help instead of '||' i replaced with '&&' and got the answer.... !Character

the real issue may be more complicated, but for now, I'm trying do accomplish something a bit easier. I'm trying to remove space in between 2 Chinese/Japanese characters, but at the same time maintaining the space between a number and a character. An example below: text = "今天特别 热，但是我买了 3 个西瓜。" The output I want to get is text = "今天特别热，但是我买了 3 个西瓜。" I tried to use Python script and regular expression: import re text = re.sub(r'\s(?=[^A-z0-9])','') However, the result is text = '今天特别热，但是我买了 3个西瓜。' So I'm struggling about how I can maintain the space between a character and a number at all time?

I'm trying to use a webview inside a scrollview on a layout of my Android app. (with a tabhost also, but it's not important) it's something like this: <ScrollView android:layout_height="fill_parent" android:layout_width="fill_parent" > <LinearLayout android:id="@+id/ll1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <WebView android:id="@+id/webview1" android:layout_height="wrap_content" android:layout_width="fill_parent" android:scrollbars="none" /> </LinearLayout> </ScrollView> The problem is that when i try to load a url made using