John M. Lee is a famous mathematician, who bears the reputation of writing the classical book "Introduction to Smooth Manifolds". In his article, "Some Remarks on Writing Mathematical Proofs", he gives us concrete and complete suggesti…

作者:supernova 出处:http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=greedyAlg John Smith is in trouble! He is a TopCoder member and once he learned to master the "Force" of dynamic programming, he began solving problem after p…

Html5 File Upload with Progress               Posted by Shiv Kumar on 25th September, 2010Senior Software Engineer, Software Architect VAUSA Categorized Under: Html 5 File Upload Tagged With: File API File Upload XMLHttpRequest             Html5 fina…

最近严重感觉到数学知识的不足! http://bbs.gameres.com/showthread.asp?threadid=10509 [译]Mathematics for Computer Graphics Mathematics for Computer Graphics数学在计算机图形学中的应用Greg Turk, August 1997 “学习计算机图形学需要多少的数学?”这是初学者最经常问的问题.答案取决于你想在计算机图形学领域钻研多深.如果仅仅使用周围唾手可得的图形软件,你不需要知…

Mathematics for Computer Graphics 最近严重感觉到数学知识的不足! http://bbs.gameres.com/showthread.asp?threadid=10509 [译]Mathematics for Computer Graphics Mathematics for Computer Graphics数学在计算机图形学中的应用Greg Turk, August 1997“学习计算机图形学需要多少的数学?”这是初学者最经常问的问题.答案取决于你想在计算机…

文章目录 Line Plot One figure, a set of subplots Image 展示图片 展示二元正态分布 A sample image Interpolating images 插值图像? Clip path Contouring and Pseudocolor 轮廓与伪彩色 Histograms hist() Paths Three-dimensional plotting Streamplot 流线图? Ellipses 椭圆 Bar charts 条形图 Pie c…

Html5 finally solves an age old problem of being able to upload files while also showing the upload progress. Today most websites use Flash Player to achieve this functionality. Some websites continue to use the Html <form> with enctype=multipart/fo…

  matplotlib.pyplot is a collection of command style functions that make matplotlib work like MATLAB. Each pyplot function makes some change to a figure: e.g., creates a figure, creates a plotting area in a figure, plots some lines in a plotting area…

本文转自:https://msdn.microsoft.com/en-us/library/office/ee692172%28v=office.14%29.aspx#OfficeOLExtendingUI_ContextMenuforaMailItem Office 2010   Summary: Learn how to programmatically extend the Microsoft Office Fluent user interface (UI) to customize t…

Imagine you're an engineer who has been asked to design a computer from scratch. One day you're working away in your office, designing logical circuits, setting out AND gates, OR gates, and so on, when your boss walks in with bad news. The customer h…

为何要关注提交信息 加快Reviewing Code的过程 帮助我们写好release note 5年后帮你快速想起来某个分支,tag或者 commit增加了什么功能,改变了哪些代码 让其他的开发者在运行 git blame 的时候想跪谢 总之一个好的提交信息,会帮助你提高项目的整体质量 基本要求 第一行应该少于50个字. 随后是一个空行 第一行题目也可以写成:Fix issue #8976 喜欢用 vim 的哥们把下面这行代码加入 .vimrc 文件中,来检查拼写和自动折行 autocmd F…

matplotlib 是Python最著名的绘图库,它提供了一整套和matlab相似的命令API,十分适合交互式地行制图.而且也可以方便地将它作为绘图控件,嵌入GUI应用程序中. 它的文档相当完备,并且Gallery页面中有上百幅缩略图,打开之后都有源程序.因此如果你需要绘制某种类型的图,只需要在这个页面中浏览/复制/粘贴一下,基本上都能搞定. 在Linux下比较著名的数据图工具还有gnuplot,这个是免费的,Python有一个包可以调用gnuplot,但是语法比较不习惯,而且画图质量不高.…

About Write-Through and Write-Behind Caches Write-through caching is a caching pattern where writes to the cache cause writes to an underlying resource. The cache acts as a facade to the underlying resource. With this pattern, it often makes sense to…

Kill Process by Name(works in: Microsoft Windows 95/98/ME/NT/2000/XP)It is sometimes necessary to terminate a running process in MS-Windows. The Win32 API provides the TerminateProcess function for this, but it requires a "handle to the process"…

<details> 标签用于描述文档或文档某个部分的细节. <details> <summary>Copyright 2011.</summary> <p>All pages and graphics on this web site are the property of W3School.</p> </details> 与 <summary> 标签 配合使用可以为 details 定义标题.标题是可见的,用…

本文为学习笔记----总结!大部分为demo.一部分为学习中遇到的问题总结.包含怎么设置标签为中文等.matlab博大精深.须要用的时候再继续吧. Pyplot tutorial Demo地址为:点击打开链接  一个简单的样例: # -*- coding: utf-8 -*- import matplotlib.pyplot as plt plt.plot([1, 4, 9, 16]) plt.ylabel('some numbers') plt.show() 执行结果为: 我仅仅指定了一组li…

本文内容为转载,重新排版以供学习研究.如有侵权,请联系作者删除. 转载请注明本文出处:Professional C# 6 and .NET Core 1.0 - 40 ASP.NET Core ----------------------------------------------------------------------- What's In This Chapter? Understanding ASP.NET Core 1.0 and Web Technologies Using…

文档中介绍的很详细:https://matplotlib.org/tutorials/text/mathtext.html matplotlib  Tutoials --> Text --> Writing mathematical expressionsr plt.title(r'\$100') # 就是要显示$符号时,使用转义字符 plt.title(r'$\alpha_i > \beta_i$') # 下标: '_' plt.title(r'$\sum_{i=0}^\infty x…

The ESTIMATE_PERCENT parameter in DBMS_STATS.GATHER_*_STATS procedures controls the percentage of rows to sample when gathering optimizer statistics. What percentage of rows should you sample to achieve accurate statistics? 100% will ensure that stat…

Intro: After some feedback on Part 1, and being prompted by some stackoverflow questions, I want to expand on and clarify some topics, so this is Part 1.5. Channel Handler Sharability & State Channel Options Channel Handlers As discussed previously,…

matplotlib 是Python最著名的绘图库,它提供了一整套和matlab相似的命令API,十分适合交互式地行制图.而且也可以方便地将它作为绘图控件,嵌入GUI应用程序中. 它的文档相当完备,并且Gallery页面中有上百幅缩略图,打开之后都有源程序.因此如果你需要绘制某种类型的图,只需要在这个页面中浏览/复制/粘贴一下,基本上都能搞定. 在Linux下比较著名的数据图工具还有gnuplot,这个是免费的,Python有一个包可以调用gnuplot,但是语法比较不习惯,而且画图质量不高.…

Developers are now finding themselves having to author applications for a diverse range of mobile platforms (iOS, Android, Windows Phone, …), each of which have their own ‘native’ development languages, tools and environment. There is an ever growing…

Django Channels 官方文档 https://channels.readthedocs.io/en/latest/index.html 前言: 最近课程设计需要用到 WebSocket,而原生的 Django 又不支持 WebSocket,仅有 Django Channels 库支持 WebSocket,但是  Django Channels 的资料,特别是中文资料异常稀缺,因此我在自己理解的基础上,整理翻译了这一篇 官方入门教程,仅作参考,如有疑问可以在下方留言.感谢大家的查看!…

转自http://blog.csdn.net/ywjun0919/article/details/8692018 Python图表绘制:matplotlib绘图库入门 matplotlib 是python最著名的绘图库,它提供了一整套和matlab相似的命令API,十分适合交互式地行制图.而且也可以方便地将它作为绘图控件,嵌入GUI应用程序中. 它的文档相当完备,并且Gallery页面中有上百幅缩略图,打开之后都有源程序.因此如果你需要绘制某种类型的图,只需要在这个页面中浏览/复制/粘贴一下,基…

转载自:http://luchenqun.com/?p=761 做一个C++方面的符合Doxygen的注释文档,备用. 1.头文件根原文件注释.这个我也不知道需要注释什么.能想到的是:谁写的,里面有些什么内容,文件是什么,版本号,日期等等.所以直接拷贝了网上的一个版本.大家根据情况直接增加或者减少吧.   1 2 3 4 5 6 7 8 9 10 11 12 13 14 /** * Copyright (C), 2015.XXXX公司,All rights reserved. * @file *…

现在通过numpy和matplotlib.pyplot 在Python上实现科学计算和绘图,而且和matlab极为相像(效率差点,关键是方便简单) 这里有大量plots代码例子.  1. 简单的绘图(plot)   2.subplot 示例   3.直方图(hist) 4.路径(path)示例  5.3d图(mplot3d)   6.流线图(Streamplot) 7.椭圆(Ellipses) 8.条形图(Bar)   9.饼图(Pie)    10.表的示例(Table) 11.散点图(Sca…

matplotlib 是python最著名的绘图库,它提供了一整套和matlab相似的命令API,十分适合交互式地进行制图.而且也可以方便地将它作为绘图控件,嵌入GUI应用程序中. 它的文档相当完备,并且 Gallery页面 中有上百幅缩略图,打开之后都有源程序.因此如果你需要绘制某种类型的图,只需要在这个页面中浏览/复制/粘贴一下,基本上都能搞定. 在Linux下比较著名的数据图工具还有gnuplot,这个是免费的,Python有一个包可以调用gnuplot,但是语法比较不习惯,而且画图质量不…

Mthod of proof by cases 证明完所有的条件分支,然后得出结论. 证明任意 使用任意 注意,对于一个任意的东西,你不知道它的具体信息.比如对于任意正数,你不知道它是 1 还是 2等等. 使用矛盾 证明相反的结论是错误的 归纳法 Prove the initial step, then apply to the induction step. Prove the mathematical theorems Assignment 解析:首先尝试找到 m, n 使得结论成立.因为…

Ten Tips for Writing CS Papers, Part 2 This continues the first part on tips to write computer science papers. 6. Ideal Structure of a Paragraph A paper has different levels of formal structure: sections, subsections, paragraphs, sentences. It is imp…

By the NIPS 2006 Program Committee With input from Andrew Ng, Peter Dayan, Daphne Koller, Sebastian Thrun, Bruno Olshausen, Yair Weiss, and Bernhard Schölkopf Edited by Max Welling and Zoubin Ghahramani in 2013. In this informal essay, we describe so…