CSS3 Gradient 分为linear-gradient(线性渐变)和radial-gradient(径向渐变)。而我们今天主要是针对线性渐变来剖析其具体的用法。为了更好的应用CSS3 Gradient,我们需要先了解一下目前的几种现代浏览器的内核,主要有Mozilla(Firefox,F.....
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Web程序 时间:
2014-07-16 23:15:17
阅读次数:
283
Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complexity...
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其他好文 时间:
2014-07-07 23:24:09
阅读次数:
210
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
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其他好文 时间:
2014-07-07 22:57:13
阅读次数:
309
## 多特征-------实际上我们真正买过房子的都知道,在选择房子的时候,需要考虑的不仅仅是面积,地段、结构、房龄、邻里关系之类的都应该是考虑对象,所以前面几讲谈论的,单纯用面积来谈房价,不免失之偏颇。### 多考虑些特性我们加入一些特性来考虑房价问题:![](http://images.cnit...
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其他好文 时间:
2014-07-07 21:39:32
阅读次数:
315
题目
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it witho...
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其他好文 时间:
2014-06-30 19:38:37
阅读次数:
226
题目
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it...
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其他好文 时间:
2014-06-30 19:23:18
阅读次数:
200
以下是几种常用的核函数表示:线性核(Linear Kernel)多项式核(Polynomial Kernel)径向基核函数(Radial Basis Function)也叫高斯核(Gaussian Kernel),因为可以看成如下核函数的领一个种形式:径向基函数是指取值仅仅依赖于特定点距离的实值函数,也就是。任意一个满足特性的函数 Φ都叫做径向量函数,标准的一般使用欧氏距离,尽管其他距离函数也是可...
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其他好文 时间:
2014-06-30 19:03:44
阅读次数:
204
【题目】
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
【题意】
给定一个整数以外,其中除了一个整数只出现一次以外...
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其他好文 时间:
2014-06-29 22:52:35
阅读次数:
246
照例文章第一段跑题,先附上个段子(转载的哦~):
I hate CS people. They don't know linear algebra but want to teach projective geometry. They don't know any probability but want to use graphical models. They don't under...
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其他好文 时间:
2014-06-29 22:35:13
阅读次数:
358
这节主要是回顾了下线性代数的一些简单知识。## 矩阵与向量-------### 矩阵由$m\times n$个数$a _{ij}(i=1,2,...,m;j=1,2,...,n)$排成的$m$行$n$列的数表,称为$m$行$n$列的矩阵,简称$m\times n$矩阵,记作:$$\matrix{A}...
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其他好文 时间:
2014-06-27 18:45:29
阅读次数:
161