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如何计算微分
Ceres为google开源非线性优化库。 计算微分方法 符号微分 Analytic Derivative 数值微分 Numeric Derivative Forward Difference Central Difference Ridders’ Method 自动微分Automatic Deri ...
分类:其他好文   时间:2019-04-05 14:01:21    阅读次数:104
redis持久化的几种方式
1、前言 Redis是一种高级key-value数据库。它跟memcached类似,不过数据可以持久化,而且支持的数据类型很丰富。有字符串,链表,集 合和有序集合。支持在服务器端计算集合的并,交和补集(difference)等,还支持多种排序功能。所以Redis也可以被看成是一个数据结构服务 器。R ...
分类:其他好文   时间:2019-03-26 13:36:41    阅读次数:142
[Javascript] Avoiding Mutations in JavaScript with Immutable Data Structures
To demonstrate the difference between mutability and immutability, imagine taking a drink from a glass of water. If our glass is mutable, when we take ...
分类:编程语言   时间:2019-03-23 22:13:01    阅读次数:114
2019 Lonsdor K518S VS K518ISE
2019 Lonsdor K518S VS K518ISE: The same: IMMO capabilities + Vehicle coverage. The difference: The update subscriptions, Lonsdor K518S offers 3 option ...
分类:其他好文   时间:2019-03-20 01:18:21    阅读次数:212
Python/Java程序员面试必备常用问题解析与答案
转自AI算法联盟,理解python技术问题,以及一些常见的java面试中经常遇到的问题,这些面试问题分为四类: 是什么(what) 如何做(how) 说区别/谈优势(difference) 实践操作(practice) 是什么(what) 如何做(how) 说区别/谈优势(difference) 实 ...
分类:编程语言   时间:2019-03-19 01:34:57    阅读次数:210
编辑距离算法-DP问题
Levenshtein Distance The Levenshtein distance is a string metric for measuring the difference between two sequences. Informally, the Levenshtein dista ...
分类:编程语言   时间:2019-03-18 13:35:17    阅读次数:167
Difference between ulimit, lsof, cat /proc/sys/fs/file-max
https://unix.stackexchange.com/questions/476351/difference-between-ulimit-lsof-cat-proc-sys-fs-file-max https://www.cyberciti.biz/faq/linux-increase-t ...
分类:其他好文   时间:2019-03-15 14:24:32    阅读次数:191
413. Arithmetic Slices(数组中等差递增子区间的个数)
A sequence of number is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the ...
分类:编程语言   时间:2019-03-13 16:53:39    阅读次数:231
Javascript中的null和 undefined
Javascript Undefined vs NULL Many a times we often get confused on whats the difference between UNDEFINED and NULL. undefined means a variable has bee ...
分类:编程语言   时间:2019-03-12 21:17:03    阅读次数:247
python之集合操作
1、创建集合 2、检测元素: in 3、集合操作 求交集: &、.intersection() 求并集: |、.union() 求差集: - 、.difference() 求异或集: ^ 、.symmetric_difference() 判断子集: <= 、.issubset() 判断真子集: < ...
分类:编程语言   时间:2019-03-12 12:42:49    阅读次数:169
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