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Minimizing NExpectation for a custom distribution in Mathematica

...tion compute the expected value. For the expected value, we only need the PDF of your distribution. Let's extract it from your definition above into simple functions: pdf[a_, b_, m_, s_, x_] := (1/(2*(a + b)))*a*b* (E^(a*(m + (a*s^2)/2 - x))*Erfc[(m + a*s^2 - x)/(Sqrt[2]*s)] + E^(b*(-m + ...
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Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?

There has been many Questions recently about drawing PDF's. 3 Answers 3 ...
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App Inventor 2 QRCode 扩展:二维码扫描及生成方案都在这里 - App Invento...

App Inventor 2 QRCode 扩展:二维码扫描及生成方案都在这里1、QRCode 二维码扫码:使用原生条码扫描器组件:2、二维码生成方案:html + js + Web浏览器 方案3、QRCodeGenerator 拓展方案更多请参考这里。1、QRCode 二维码扫码: 使用原...
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App Inventor 2 如何下载/保存网络图片? - App Inventor 2 中文网 - 清泛...

App Inventor 2 如何下载/保存网络图片?ai2_down_webpics首先,需要使用Web客户端组件,需要和网络url进行数据交互场景就要考虑使用它,Web客户端组件在通信连接抽屉中:设置好网络图片url,然后执行Get方法即可,代码如下:其...
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chm转html(chm decoder) 绿色中文 - 软件下载 - 清泛网 - 专注C/C++及内核技术

chm转html(chm decoder) 绿色中文chm2html chm 反编译chm转html(chm decoder) 2 1 绿色中文下载,chm decoder是专用于反编译chm文件资源工具。chm decoder主要用于将chm文档转换为html chm转html(chm decoder) 2.1 绿色中文下载,chm decoder是专用于...
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Generating PDF files with JavaScript

I’m trying to convert XML data into PDF files from a web page and I was hoping I could do this entirely within JavaScript. I need to be able to draw text, images and simple shapes. I would love to be able to do this entirely in the browser. ...
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C++中静态变量初始化顺序 - C/C++ - 清泛网 - 专注C/C++及内核技术

C++中静态变量初始化顺序C++中全局静态变量初始化顺序随机,是线程安全;局部静态变量在函数调用时才初始化,非线程安全。1、C++中全局静态变量初始化顺序随机,是线程安全,由C++标准提出,编译器实 C++中全局静态...
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Oracle nvarchar和varchar相互转换、联合查询 - 数据库(内核) - 清泛网 - ...

Oracle nvarchar和varchar相互转换、联合查询场景:联合查询(union all)Oracle两张表,同一组字段数据类型不一致,分别是nvarchar和varchar。这时联合查询报错如下:ora12704:字...场景:联合查询(union all)Oracle两张表,同一组字段...
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gcc编译警告:misleading-indentation - C/C++ - 清泛网 - 专注C/C++及内核技术

gcc编译警告:misleading-indentationgcc-misleading-indentationmisleading-indentation(不正确缩进),一般都是Tab及空格缩进问题导致。实例1:Tab、空格混用将:[空格] if(err)[空格] fprintf(stderr, "op faile misleading-indentation(不正确缩...
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【解决】Java报错:Implicit super constructor Object() is undefined for...

【解决】Java报错:Implicit super constructor Object() is undefined for default constructor. Must define an explicit constructor1、网上常规解决步骤:把java类库加载进去,在工程上右键选择属性 > Java Build PathLibraries > Add Library选择JRE System Library > ...