[计] 无约束优化
[化] 无约束优化

unconstrained optimization的用法和样例：

例句

The nonmonotone line search algorithm for nonsmooth optimization given by Pang is extended to this case, and we prove that the algorithm is globally convergent.五，研究了非光滑极大极小无约束最优化问题，给出了一个线性搜索算法，并证明其整体收敛性。

英文书摘精选蚂蚁社会

Ants have an amazing ability to communicate with each other and work together to accomplish complex tasks. Their specialized behavior due to chemical communication is so well developed, in fact, that humans can learn a lot from them about how best to

发表于:2018-12-03 / 阅读(81) / 评论(0)

初学者听力文摘精选

豆知识 2011-10-23&10-29 搜索引擎优化

Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. People depend on you every day to find the exact book they need. How do you do it? You need a system. You need to know whats inside ever

发表于:2018-12-11 / 阅读(49) / 评论(0)

英语解说豆知识2011年

【轻松英文阅读】咖啡因对大脑的危害

Those all-nighters powered by caffeine may be doing more damage than expected. According to a recent study, brain development in teenagers can be delayed by over-consumption of caffeine. Teenage brains need solid sleep for their development. Caffeine

发表于:2018-12-28 / 阅读(59) / 评论(0)

轻松英文阅读

中兴打造全球首款千兆手机首次尝鲜5G网络

Chinese telecom conglomerate ZTE Corp unveiled a prototype handset, embracing 5G even before it's commercialized for smartphone users. 我国电信集团中兴通讯日前发布了一款原型机，使智能手机用户在5G商业化之前即可享受

发表于:2019-01-07 / 阅读(54) / 评论(0)

英语新闻

VOA慢速英语2011--Paying Others to Worry About Your Online

Economics Report - Paying Others to Worry About Your Online Image 经济报道 - 聘请他人管理你的网上声誉 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 A reputation -- what people think

发表于:2019-01-12 / 阅读(88) / 评论(0)

2011年VOA慢速英语(七)月

美国万圣节与狗

American Halloween Goes to the Dogs 美国万圣节与狗 In America, Halloween is a big deal. Americans spend $7.4 billion on Halloween and $350 million of that is for costumes for their pets, reports the National Retail Federation. About 15 percent

发表于:2019-01-12 / 阅读(93) / 评论(0)

2015年VOA慢速英语(十一)月

美国国家公共电台 NPR Covert Fashion Provides Camouflage Against Surveillance Software

ROBERT SIEGEL, HOST: South by Southwest also showcases art, the type of art you'd expect at a tech-focused conference. One installation features counter-surveillance fashion by a group of women of color. They first caught the eye of NPR arts correspo

发表于:2019-01-16 / 阅读(73) / 评论(0)

2017年NPR美国国家公共电台3月

2015年CRI Beijing-Tianjin-Hebei Region Needs 249 Bln Yuan for Air Pollution Control: Report

The report, compiled by a panel of experts from the Chinese Academy for Environmental Planning and Nanjing University, comes after two years' field investigation, as well as data collection, analysis and calculation. Xie Hongxing, director of the Sec

发表于:2019-01-19 / 阅读(90) / 评论(0)

2015CRI中国国际广播电台

向前一步:第168期全能女人是个神话(1)

Chapter 9 The Myth of Doing It All 第9章全能女人是个神话 Having it all. Perhaps the greatest trap ever set for women was the coining of this phrase. 拥有一切也许是女人遭遇的最大陷阱。 Bandied about in speeches, headlines,

发表于:2019-01-19 / 阅读(66) / 评论(0)

向前一步

Makers of China-made big screen aim to break IMAX monopoly

HEFEI, April 9 (Xinhua) -- DMAX, a large film screen made with Chinese independent technology, on Monday was put into commercial use in a cinema in the eastern province of Anhui, as developers hope to break the IMAX monopoly in China's booming film m

发表于:2019-01-30 / 阅读(80) / 评论(0)

英语新闻

原来这就是网上那些神一般的SEO

This is Search Engine Optimization Explained by Common Craft. 本期介绍搜索引擎优化。 Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. 假设你是名超级图书管理员，管

发表于:2019-02-05 / 阅读(74) / 评论(0)

英语万花筒

Yahoo to acquire Interclick for $270 mln

SAN FRANCISCO, Nov. 1 (Xinhua) -- Yahoo, which has been rumored to sell all or part of its business, announced on Tuesday that it is buying data-driven advertising network Interclick for around 270 million U.S. dollars. Interclick is a technology com

发表于:2019-02-05 / 阅读(153) / 评论(0)

英语新闻

如果你的数学老师长这样还能专心听课吗

Heres one way to make sure you have perfect attendance in your class: 让你把全部注意力放在课堂上只有一种方法： Meet Pietro Boselli: Obviously, hes ridiculously good-looking. 来见见我们的彼得罗博塞利：看吧看吧，他真

发表于:2019-02-06 / 阅读(88) / 评论(0)

阅读空间

如何让求职简历物尽其用

1.Make a wish list。 Take the time to identify the companies you want to work for before you sit down to write your resume. 'You have to know where you are headed,' says Robert Saam, a senior vice president at Woodcliff Lake, N.J.-based outplacement

发表于:2019-02-06 / 阅读(91) / 评论(0)

实用英语

China to speed up service sector development

China to speed up service sector development BEIJING, Sept. 26 (Xinhua) -- The State Council, China's Cabinet, on Wednesday announced multiple tasks for accelerating the development of the country's service sector in the 2011-2015 period. Developing

发表于:2019-02-07 / 阅读(93) / 评论(0)

英语新闻

Banks encouraged to seek private investment

BEIJING, May 26 (Xinhua) -- China's financial institutions should focus on attracting more private investment, the country's banking regulator said Saturday. Banks are encouraged to gain investment from well-managed private enterprises of good repute

发表于:2019-02-07 / 阅读(140) / 评论(0)

英语新闻

2015年5月CATTI三笔真题详解汉译英篇

此次的汉译英语段命题与以往有些不同，以前都是时政语段或企业介绍，如今的命题有所变化。该文是一篇说明文，介绍了贵州天柱县丰富的自然资源。但不论怎么变化，万变不离其宗，我们

发表于:2019-02-12 / 阅读(92) / 评论(0)

英语笔译

通往成功的五大非传统专业

In an age dominated by innovation and new technology, becoming a successful entrepreneur is no longer the preserve of a MBA degree holder. 在当今这个以创新和新科技为主导的时代，成为成功企业家再也不是工商管理硕士的专

发表于:2019-02-15 / 阅读(88) / 评论(0)

阅读空间

2015年CRI 中国和韩国在周一签署了自由贸易协议

China and South Korea signed the free trade agreement on Monday. Under the deal, tariffs on over 90 percent of the goods traded between the two countries will be removed in the next two decades. It covers 17 areas including trade in goods, services a

发表于:2019-02-21 / 阅读(78) / 评论(0)

2015CRI中国国际广播电台

2015年CRI 中国在气候变化方面取得的成就

China has recently submitted a post-2020 climate change pledge to the United Nations, promising that compared with 2005, China will cut its CO2 output per unit of GDP by between 60 and 65 percent by 2030. Zou Ji, the deputy director at the National C

发表于:2019-03-04 / 阅读(157) / 评论(0)

2015CRI中国国际广播电台

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accounts due on consignmentout

anomalous trichromatism