i**p
发帖数: 902 | 1 Someone is asking this question in stackoverflow.com, and no good answer
there. I have the same question. Could anyone here give a best answer?
http://stackoverflow.com/questions/15867707/thinking-in-c-inlin
The following code is from Thinking in C++. The author mentioned that "Since
operator[] is an inline, you could use this approach to guarantee that no
array-bounds violations occur, then remove the require() for the shipping
code." What feature of inline function is referred here? Thanks!
#i... 阅读全帖 |
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p***o
发帖数: 1252 | 2 We are talking about what is 'inline'.
Have you really checked the ASM list? If you see any extra operations,
say for std::vector::operator[], make sure you have read the documents
to turn off all debug helps/assertions.
++ |
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i**p
发帖数: 902 | 3 "Since operator[] is an inline, you could use this approach to guarantee
that no array-bounds violations occur, then remove the require() for the
shipping code."
这句话先强调了"Since operator[] is an inline", 而后半句说的是用require()保证
没有array-bounds violations occur. 难道不是inline的话就不能用require()了吗? |
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c******o
发帖数: 1277 | 4 most of them are NOT operator, very little operator in Scala, most are just
functions for certain type |
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c******o
发帖数: 1277 | 5 What I mean is
for example, Scala List:
++
++:
+:
/:
:+
::
:::
:\
they are not operators, they just functions. You can wrap them in another
name easily if you really want.
Scala has very few operators. |
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m*********a
发帖数: 3299 | 6 简单的返回一个right hand value?
所以不能支持(a=b)=c:
MyClass MyClass::operator=(const MyClass &other){
if (this!=&other)
value=other.value;
return *this;
}
返回一个reference,可以用 left hand value, 支持(a=b)=c:
MyClass & MyClass::operator=(const MyClass &other){
if (this!=&other)
value=other.value;
return *this;
} |
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A*******e
发帖数: 2419 | 7 引入operator other()的目的是有时候other类是使用者无法修改的
比如是一些闭源的代码
这时候other2类中加入operator other()的自定义转换函数就能使得
从other可以转换到other2 other2也能转换到other
作为一种"对称". (我参考的原帖下面reference中解释)
说实话，这种用法真的很古怪。 |
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a*****g
发帖数: 19398 | 8 /* http://www.ccodechamp.com/c-program-of-set-operations-in-maths/ */
#include
#include
#define MAX 30
void create(int set[]);
void print(int set[]);
void Union(int set1[],int set2[],int set3[]);
void intersection(int set1[],int set2[],int set4[]);
int member(int set[],int x);
int main()
{ int set1[MAX],set2[MAX],set3[MAX];
int x,op;
set1[0]=set2[0]=set3[0]=0;
printf("-------------------------------------------------------------\n");
printf("----------------made by C co... 阅读全帖 |
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os
发帖数: 81 | 9 Posted from Lanken Laboratory Web Forum
Download Address: http://www.lanken.com/forum/viewtopic.php?t=44
Migrating to the Solaris Operating System:
The Discipline of UNIX-to-UNIX Migrations
ISBN: 0-13-150263-8, Prentice Hall PTR, November 2003.
272 Pages, Paperback.
This book presents an established methodology for transitioning the
people, processes, and technologies in IT environments to the Solaris
Operating System. It steps you through the various phases of the migration
process, using |
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c*******k
发帖数: 76 | 10 Hi, my windows xp got affected by Virus. The operating system needs to be
reinstalled. But there was no Windows CD when the computer was bought. Could
anybody shed some light where I can get a copy of the Windows XP operating
system? Many thanks. |
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h*********n
发帖数: 915 | 11 【 以下文字转载自 Quant 讨论区 】
发信人: heavyburden (nothing), 信区: Quant
标 题: after-tax operating cash flow
发信站: BBS 未名空间站 (Wed May 25 20:33:23 2011, 美东)
在看capital budgeting的章节。有几个疑问。
after-tax operating cash flow = (s-c-d)*(1-t)+d = (s-c)*(1-t)+t*d
1. 这里的cf是股东和债权人总共的cf，对吗？
2. interest expense不是可以抵税吗？这里为什么只考虑depreciation的抵税效应？是假定债
权人也要缴纳税金，并且税率和公司税率一样？ |
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d*********e
发帖数: 3835 | 12 Based in the Middle East, with its natural geographic position as a key air
transport hub, this preeminent National Carrier is well positioned to drive
growth across Europe, Asia, the Middle East and Africa with its extensive
regional and international passenger and wide-body freighter networks.
Reporting to the Chief Executive and the Board of Directors, the Chief
Operating Officer is responsible for developing, executing and managing the
Air Cargo business plan including operational and sales |
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s*******k
发帖数: 7 | 13 Repressor 在原核中可以识别并结合到Operator上，从而阻断RNA聚合酶的与启动子的结
合。Repressor 也可以识别并结合到Silencer上，从而阻断RNA聚合酶的与启动子的结合
。
那么Operator 和Silencer的区别是否只是前者的命名用在原核上，后者的命名用在真核
上，但它们的作用机制其实是一回事？ |
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j***g
发帖数: 158 | 14 假如本身不是finance背景的，进不了投行的核心部门（IBD,EQUITY,etc）但是进
operation部门（很可能是其中跟private wealth management直接相关的team）的话将
来再自学finance，考CFA逐渐往核心部门转的话，不知道这个版上走过这条路的人多吗？
BTW，很可能进的这家公司倒是行内很好的公司。现在面临phd毕业，到底是老老实实走
本专业还是直接转行，正在考虑中，也在痛苦中，呵呵。
另外，假如进这个operation的话也是analyst，很难给associate的level。 |
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b********8
发帖数: 3059 | 15 Positions Open: One, in statistics, econometrics, economics, or operation
research
Starting time: March 15, 2011 or sooner.
Qualification:
Education:
1. Ph.D. in statistics, economics, econometrics, operation research.
2. MS in statistics, econometrics, economics.
Statistics has the first priority.
Working experience: Research experience in statistics and/or econometrics
Responsibilities (full-time):
1. Data processing using statistics packages (SAS)
2. Data cleaning and validation... 阅读全帖 |
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m**s
发帖数: 35 | 16 - Engineering Optimization and Operations Research
http://www.ee.ucla.edu/academics/fields_of_study/eo-or.htm
Engineering optimization/operations research is conducted in optimization
theory, including linear and nonlinear programming, convex optimization and
engineering applications, numerical methods, nonconvex programming, and
associated network flow and graph problems. Another area of study is that of
stochastic processes, including renewal theory, Markov chains, stochastic
dynamic programmi |
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P*****s
发帖数: 393 | 17 【 以下文字转载自 JobHunting 讨论区 】
发信人: Protoss (go fight), 信区: JobHunting
标 题: 有人了解lean operation 的就业前景大概是个什么状况吗？
发信站: BBS 未名空间站 (Wed Jun 18 22:59:08 2008)
ME的master，现在有个公司联系做lean operation的东西
google了一下，大概知道是流程优化之类的东西。但是不清楚这个领域前景和跟
mechanical engineer 比是个什么标准
另外做这个的一般title是什么，我想查一下salary.com
多谢多谢 |
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m********8
发帖数: 123 | 18 operation research 对数学的要求是非常高的，
玫瑰的应用数学系总共有2、3个大方向，其中一个是工程数学或者说连续数学，一个是
动力系统也是工程数学吧？一个是管理数学或者说离散数学
operation research 好象2个都要，可能要泛函分析－－抽象的连续数学
藕小的时候学过“运筹学”，不过那只是一门课而已 |
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N****E
发帖数: 21 | 19 【 以下文字转载自 Mathematics 讨论区 】
发信人: NEWBIE (新手上路), 信区: Mathematics
标 题: 请教关于operation research
发信站: BBS 未名空间站 (Sat Aug 27 12:30:30 2011, 美东)
弱问:数学系的operation research 和IE 的有很大区别吗?
另外, 想请教supply chain这个分支方向如何? |
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w****w
发帖数: 7 | 20 Experts in operation research and optimization, please recommend some
materials, books or papers, on optimization algorithms which can produce
robust results with respect to the knowledge pre-acquired that describes the
uncertainty of the subject? In other words, deal with operation
uncertainties in the optimization procedure.
Thank you very much! |
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m***a
发帖数: 2 | 21 Hi,
I wonder how to compute the approximate inverse of a nonlinear operator. for
example, I have an operator, which convolve the input function with an
analytic function and then take the square of the convolution result. I
would like to find out the approximate inverse of such process.
does anyone know what book/papers describing such things?
Thanks
mlfma |
|
c*******v
发帖数: 2599 | 22 analytic function的Fourier级数和Chebyshev级数展开系数是指数下降的，
计算这种逆问题的时候只要记住不要用Taylor级数作就行了。
或者用待定系数法，或者取点值解代数方程组都可以。
Hi,
I wonder how to compute the approximate inverse of a nonlinear operator. for
example, I have an operator, which convolve the input function with an
analytic function and then take the square of the convolution result. I
would like to find out the approximate inverse of such process.
does anyone know what book/papers describing such things?
Thanks
mlfma |
|
w**t
发帖数: 592 | 23 最近看篇文章，提到两个时间序列Xt, Yt：
Xt = a1*Xt-1 + a2*Xt-2 +...+ b1*Yt-1 + b2*Yt-2 +...+ERR1t
Yt = c1*Xt-1 + c2*Xt-2 +...+ d1*Yt-1 + d2*Yt-2 +...+ERR2t
定义lag operator L为 LXt = Xt-1, 上面连个序列重新写成:
|a(L) b(L) | |Xt| = | ERR1t|
|c(L) d(L) | |Yt| | ERR2t|
然后文章提到,Fourier transform both sides of the above equation后变成:
|a(f) b(f) | |X(f)| = | ERR1(f)|
|c(f) d(f) | |Y(f)| | ERR2(f)|
问题:
1. 对于lag operator, 如何用fourier transform? 是把L看作为变量么,如a(L)是L的
函数?
2. 这个fourier transform就是双变量的fou |
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s********t
发帖数: 479 | 24 Help friends with this. I'm not a head hunter. Thanks.
Company: LYZ Capital Advisors
Location: Purchase, NY
Position: Quantitative Trading and Operations
LYZ Capital Advisors invites applications from motivated individuals with
strong computer skills who are passionate about real-life investing: we have
an immediate opening in Quantitative Trading and Operations.
Ideal candidates should hold advanced degrees in a highly quantitative field
(high GPA in a top university and/or publication records |
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s********t
发帖数: 479 | 25 帮朋友发的（不要email我）：
Company: LYZ Capital Advisors LLC
Location: Stamford, CT
Position: Quantitative Trading and Operations
LYZ Capital Advisors LLC is a quantitative hedge fund manager. We invite
applications from motivated individuals with strong computer and
quantitative skills. We have an immediate opening in Quantitative Trading
and Operations.
Ideal candidates should hold college degrees in a highly quantitative field.
A high GPA from a top university is desirable. The person should also have |
|
s********t
发帖数: 479 | 26 帮朋友发的（不要email我）：
Company: LYZ Capital Advisors LLC
Location: Stamford, CT
Position: Quantitative Trading and Operations
LYZ Capital Advisors LLC is a quantitative hedge fund manager. We invite
applications from motivated individuals with strong computer and
quantitative skills. We have an immediate opening in Quantitative Trading
and Operations. This position provides the opportunity to closely work with
professionals in trading, risk management, and research teams in the firm.
Ideal candidates |
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A*****s
发帖数: 13748 | 27 Basel 2001说：
The risk of loss resulting from inadequate of failed internal process,
people, and systems or from external events.
基本上：
Risk = Market Risk + Credit Risk + Operational Risk，大家就习惯于把Market和
Credit之外的risk都称作operational吧。。。 |
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W****W
发帖数: 508 | 28 谁知道一点？
Trading System Operator (Singapore): Seeking qualified individual
responsible for day-to-day trading system operation, maintenance, and
support. Must be a self-starter, able to work with remote team, able to
communicate clearly, and able to interact with traders on a daily basis.
Knowledge of UNIX systems, perl, and shell scripting strongly desired. No
financial experience is required.
大家觉得这个工作如何？pay level咋样？本人30+ 一大堆MS。没有phd.现在从事IT工
作。总想着去
hf混。大家给点意见，谢谢！ |
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a******w
发帖数: 74 | 29 【 以下文字转载自 JobHunting 讨论区 】
发信人: acandrew (Taurus), 信区: JobHunting
标 题: Financial Operational Research vs Financial engineering
发信站: BBS 未名空间站 (Tue Feb 5 15:05:02 2013, 美东)
请问Financial Operational Research 和 Financial engineering哪个专业的master
学位容易找到金融方面的工作？
将来在美国找工作或者回国找工作是不是都是Financial Engineering 专业好一点？
多谢多谢 |
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P****d
发帖数: 113 | 30 人家是“trade desk”operations，就是trader assistant.
跟你这个operations department不是一回事。
当然你说名称inflation,硬是加上个“trader desk”骗人,就当我没说。 |
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b********8
发帖数: 3059 | 31 Positions Open: One, in statistics, econometrics, economics, or operation
research
Starting time: March 15, 2011 or sooner.
Qualification:
Education:
1. Ph.D. in statistics, economics, econometrics, operation research.
2. MS in statistics, econometrics, economics.
Statistics has the first priority.
Working experience: Research experience in statistics and/or econometrics
Responsibilities (full-time):
1. Data processing using statistics packages (SAS)
2. Data cleaning and validation... 阅读全帖 |
|
s***y
发帖数: 3299 | 32 【 以下文字转载自 JobHunting 讨论区 】
发信人: sassy (神猫忍者龟), 信区: JobHunting
标 题: [Internship] PhD/Master Student in Stat/Econ/Operation needed
发信站: BBS 未名空间站 (Mon May 2 18:09:06 2011, 美东)
Modeling team in Citi at St Louis is looking for a summer internship.
PhD/Master students in Statistics/Economics/Operation Science.
Responsibilities include developing statistical models and decision logic
to support risk management initiatives, and developing statistical
techniques, sampling procedures and scoring algori... 阅读全帖 |
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p****u
发帖数: 2596 | 33 不好意思，之前帖错版贴到new bbs 去了。很多朋友回复支持的也在那个版去了。惭愧。。
【 以下文字转载自 NewBBS 讨论区 】
发信人: pipinu (pipinu), 信区: NewBBS
标 题: 申请新开 Operations Research 运筹学 版。
发信站: BBS 未名空间站 (Wed Apr 21 13:00:40 2010, 美东)
申请新开 Operations Research 运筹学 版。
开版理由：
１。运筹学作为一个历史悠久的学科，有着广泛的应用。 越来越多的中国／华人学生
在这个专业学习和工作，需要一个交流的平台。
２。 目前有关运筹学的贴子常出现在金融工程，数学，工程，商学院等各个版面。这
种分布不利于大家交流，而且不利于各个版面管理。
本人申请版主，理由：
１。本来运筹学专业毕业，熟悉本版基本内容。
２。 mitbbs经验丰富，现任其他版board。。
３。热心各项公益事物。
谢谢。 |
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z*******n
发帖数: 1034 | 34 January 29, 2015 9:15 AM
Ruth Reader
Today, ladies, the Federal Trade Commission is on your side.
The FTC is shutting down revenge porn site “IsAnybodyDown.”
Operated by Craig Brittain, IsAnybodyDown was a receptacle for nude photos
of women obtained through deceptive means. According to the FTC, Brittain
would go on Craigslist posing as a woman and ask other women to exchange
nude photos. He then would take those photos and post them on his site
without their knowledge.
Brittain also set up a b... 阅读全帖 |
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w*******y
发帖数: 60932 | 36 Ok, This is my first deal post. Go easy on me
Amazon has the Wahl 5537-1801 Cordless Battery Operated Beard Trimmer with
Bonus Ear, Nose and Brow Trimmer for $9.45
Link:
http://www.amazon.com/Wahl-5537-1801-Cordless-Battery-Operated/
Product Features:
Beard trimmer with five-position guide lets you create precise trims and
looks
High-carbon steel maintains sharpness
Storage base keeps pieces organized and within reach
Bonus personal trimmer included for ear, nose, and brow
2-... 阅读全帖 |
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w*******y
发帖数: 60932 | 37 Walmart.com has the Motorola Xoom 32GB Wi-Fi 10.1" Touchscreen Entertainment
Tablet PC featuring Android 3.0 (Honeycomb) Operating System for $398.
Free site to store shipping
Product Link:
http://www.walmart.com/ip/MOTOROLA-00001NARGNLX/15779799
Get the whole world at your fingertips with the Motorola XOOM 10.1"
Touchscreen Tablet PC. With a brilliant 10.1" display, this Motorola XOOM
tablet PC takes your media experience to a new level altogether. This
Android touch tablet uses NVIDIA Tegra du... 阅读全帖 |
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w*******y
发帖数: 60932 | 39 Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital
Display for $19.49 - 15% = $16.57.
Link:
http://www.amazon.com/gp/product/B004Y6V5CI
Extra 15% off shown at checkout.
Large digital backlit display is easy to read, even in low-light conditions
Peak-level memory displays the highest CO concentration measured since the
last reset
Meets the requirements of Underwriters Laboratories (UL)
Battery operated with three AA batteries included
Backed by a five-year warranty
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I********l
发帖数: 8702 | 40 昨天就有450多楼了。很多评论说，看得喉咙哽咽，泪眼汪汪。
oper |
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s********0
发帖数: 57 | 41 读工业工程的operation research博士可以去商学院做OM的教授吗？该校是北美top20
，工程排名北美top10。谢谢！！！ |
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l******r
发帖数: 18699 | 42 不好意思 首先打断一下各位 fwdo如果敢进来的话他全家死光
好 进入正题。记得前几年诺贝尔经济学奖发给一个用operational research做
constrained optimization的 貌似给or重新带来生机。不过更多的人对or抱有悲观态
度 尤其是在当今复杂数据下的or前景不看好。各位怎么看？ |
|
发帖数: 1 | 43 美国入侵巴拿马是美国在1989年12月对巴拿马发动的入侵行动，美国对此一行动的代号
为“正义之师作战”（Operation Just Cause）。巴拿马运河条约签订后十年，即1989
年12月，乔治·H·W·布什总统在任期间，美国海军陆战队和陆军突击队突袭巴拿马，
迅速赢得胜利，并且俘虏了当时巴拿马的事实上最高领导人、独裁者曼纽尔·诺列加，
解散了巴拿马国防军。
背景
1983年诺列加通过政变迫使当时军事领导人鲁文·达里奥·帕雷德斯（Rubén Darío
Paredes）退休，自任国防军总司令，实际掌握军政大权。1989年5月总统大选开票统计
结果，反对党联合推举之总统候选人吉列尔莫·恩达拉获得选举胜利，但诺列加宣布选
举无效，同年9月美国对巴拿马实行经济制裁，12月15日诺列加宣布巴拿马与美进入战
争状态，自任国家元首。
1989年12月20日，以保护美国侨民，保护民主选举和打击贩毒的名义（巴拿马当时为国
际贩毒的一大洗钱中心），美国总统乔治·赫伯特·沃克·布希下令两万七千名美军展
开对巴拿马代号“正义之师作战”的军事行动，以推翻诺列加的军事独裁政权，使在之
前选举中胜选的恩达拉... 阅读全帖 |
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发帖数: 1 | 44 问一下Cayley-Hamilton 定理
1.怎么用的，我没时间看视频了
2.看了下维基百科，感觉这个定理是不是和谱有关？Operator point spectrum |
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i***a
发帖数: 4718 | 46 http://nymag.com/daily/intelligencer/2016/04/inside-the-donald-
OPERATION TRUMP
Inside the most unorthodox campaign in political history
By GABRIEL SHERMAN
On the afternoon of March 15, as voters across five states streamed to the
polls, Donald Trump’s campaign advisers gathered by the pool at Mar-a-Lago,
the billionaire’s private club in Palm Beach. Hope Hicks, Trump’s 27-year
-old press secretary, wearing a cover-up over bikini bottoms, her hair still
wet from the pool, scanned headlines on he... 阅读全帖 |
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