由买买提看人间百态

topics

全部话题 - 话题: numerically
1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
p***8
发帖数: 36
1
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
2
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
3
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
4
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
5
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
6
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
7
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
p***8
发帖数: 36
8
PhD and post-doc positions in Mechanical Engineering are immediately
available in the research group of Dr. Yi Wang at the University of South
Carolina-USC (Columbia/Main campus, https://www.sc.edu/study/colleges_
schools/engineering_and_computing/faculty-staff/yi_wang.php). USC is the
flagship university in the State of South Carolina, and the Ph.D. program at
the department of Mechanical Engineering is ranked No. 31 nationally by the
National Research Council (NRC) [1], and the College of Engi... 阅读全帖
c**i
发帖数: 6973
9
Alan Hirshfeld, Counting On Progress; Roman numerals were fine for adding
and subtracting. Fibonacci saw that complex math required a better system.
Wall Steet Journal, July 7, 2011
http://online.wsj.com/article/SB1000142405
2702304569504576403860686782154.html
(book review on Keith Devlin, The Man of Numbers; Fibonacci's arithmetic
revolution. Walker, 2011)
Note:
(a) Catch 22
http://en.wikipedia.org/wiki/Catch_22
(a novel by the American author Joseph Heller, first published in 1961;
section 1 ... 阅读全帖
s********1
发帖数: 581
10
numerical analysis的课程对于graphics/vision有用吗?
本人打算进入computer vision或者computer vision,
请问
(1) numerical analysis的课程对于graphics/vision有用吗?
(2) numerical analysis的课程对于找part-time/temperary job有用吗?
(3) numerical analysis 和 software engineering(或者software design
project)相比,哪个更好找工作??
(4) numerical analysis 和machine learning相比,哪个更好找工作??
谢谢!
j***n
发帖数: 1471
11
拿流体力学来说吧,流体的流动是客观存在的物理现象,传统的N-S方程是对这个物理
现象的数学描述,加上有限体积法这样的数值方法配合适当的边界条件,就是对流体机
械运动规律的一个建模,也就是numerical modeling。你提出一个新的湍流模型,那就
是一个新的numerical model。搞CFD的人设置各种各样的边界条件去模拟各种流体的运
动,这个是numerical simulation.
b*****f
发帖数: 50
12
贡献一把,
讲 Numerical method 简单的, 值得买的,虽然网上都有。
Finite Difference
《Numerical Solution of Partial Differential Equations: An Introduction》 by
Morton and Mayer
Finite Volume
《Finite Volume Methods for Hyperbolic Problems》 by LeVeque
Finite Element
《The Finite Element Method: Linear Static and Dynamic Finite Element
Analysis》 By Hughes
Numerical analysis 侧重不一样,要不少基础课,估计你用不着,就不列了。
看《Numerical Recipes》不如看什么《intro to scientific computing》
o******y
发帖数: 446
13
【 以下文字转载自 Mathematics 讨论区 】
发信人: onlyonly (每天都这样), 信区: Mathematics
标 题: numerical attributes 中的"numerical"是整数还是数?
发信站: BBS 未名空间站 (Thu May 17 14:33:37 2007), 站内
谢谢。
g***i
发帖数: 90
14
来自主题: Computation版 - Numerical low-rankness of Hilbert matrix
given the hilbert matrix (1/(i+j-1))_{i,j} with large
dimension, prove that every of it's off-diagonal
block has small numerical ranks.
this is kind of unclear. but if u do some numerical
experiments, you can see, for the 100x100 hilbert
matrix, the off-diagonal blocks have numerical rank
almost < 10.
one idea is to use taylor.
k**********g
发帖数: 989
15
Introductory level numerical analysis (or numerical methods) is important
for the disciplines you mentioned, and it is usually a prerequisite for many
advanced classes. It teaches splines which is required for Computer
Graphics. It also teaches solving optimization equations, which is a
cornerstone of machine learning and computer vision. (Computer vision is an
application of machine learning.)
Numerical analysis will be important if you are looking for science or
finance software internship. It
S*********g
发帖数: 24893
16
【 以下文字转载自 USANews 讨论区 】
发信人: StephenKing (金博士), 信区: USANews
标 题: Special counsel wants documents on Trump, numerous campaign associates
发信站: BBS 未名空间站 (Mon Mar 5 00:41:40 2018, 美东)
http://www.nbcnews.com/politics/white-house/special-counsel-wants-documents-trump-numerous-campaign-associates-n853386
这个是好消息,还是坏消息?
b******b
发帖数: 21
17
【 以下文字转载自 Computation 讨论区 】
发信人: blueclub (侠之大者), 信区: Computation
标 题: R&D Engineer Position in Numerical Methods
发信站: BBS 未名空间站 (Tue Sep 18 00:04:19 2007)
Hi, all. We are looking for a strong numerical guy to help us with linear
solvers. The job description has been attached below. Please contact me at
b******[email protected] if interested. We also have some intern positions.
Regards,
Peter
S*********g
发帖数: 24893
18
【 以下文字转载自 USANews 讨论区 】
发信人: StephenKing (金博士), 信区: USANews
标 题: Special counsel wants documents on Trump, numerous campaign associates
发信站: BBS 未名空间站 (Mon Mar 5 00:41:40 2018, 美东)
http://www.nbcnews.com/politics/white-house/special-counsel-wants-documents-trump-numerous-campaign-associates-n853386
这个是好消息,还是坏消息?

发帖数: 1
19
Numerical analysis and modeling with applications in fluid and solid
mechanics, physics (of polymeric materials), engineering (mechanical and
mining), and the reliability of electronic devices.
相关领域都可以,希望最近有要出paper的版上朋友帮助。本人在准备申请EB1B,实在
是citation离律师建议的数量还差一些,就因为这个,已经在申请的路上犹豫了一年了
,如果最近几个月能在多出一些来就有把握file case.之前在版上得到很多有用信息,
希望这次能有好心朋友帮助,以后我也定当尽力帮助版上其它朋友。
关键词:computational fluid and solid dynamics, fluid-solid interactions,
polymeric materials, numerical and analytical models, material reliability
... 阅读全帖
S*********g
发帖数: 24893
20
【 以下文字转载自 USANews 讨论区 】
发信人: StephenKing (金博士), 信区: USANews
标 题: Special counsel wants documents on Trump, numerous campaign associates
发信站: BBS 未名空间站 (Mon Mar 5 00:41:40 2018, 美东)
http://www.nbcnews.com/politics/white-house/special-counsel-wants-documents-trump-numerous-campaign-associates-n853386
这个是好消息,还是坏消息?
e*r
发帖数: 1121
21
来自主题: ComputerGraphics版 - numerical recipe里的快速傅立叶变换 (转载)
【 以下文字转载自 Programming 讨论区 】
发信人: ear (猪头洗心革面), 信区: Programming
标 题: numerical recipe里的快速傅立叶变换
发信站: BBS 未名空间站 (Tue Jul 1 22:39:16 2014, 美东)
最近需要编个cross correlation 的程序, 调用了numerical recipe里的four1 (快
速傅立叶变换)。用简单的正弦函数做测试,通过。上真实数据,发现傅立叶变换后返
回很多NAN的value。数据点也不是很变态,大概是0.01 到3之间。网上google有些人说
这个four1毛病很多。我不是很明白。
这里有懂的可以讲讲么?另外可以推荐个比较robust 的快速傅立叶变换子程序吗?非
常感谢!我用的是fortran.
xiexie!
l**p
发帖数: 173
22
【 以下文字转载自 JobHunting 讨论区 】
发信人: lslp (falcondancing), 信区: JobHunting
标 题: 求电子书 Numerical Analysis by Richard L. Burden 多谢
发信站: BBS 未名空间站 (Thu Dec 28 19:16:46 2006)
Numerical Analysis (Hardcover)
by Richard L. Burden, J. Douglas Faires
最好是新的版本的, 比如7th
my email is : f***********[email protected]
多谢
e*r
发帖数: 1121
23
【 以下文字转载自 Programming 讨论区 】
发信人: ear (猪头洗心革面), 信区: Programming
标 题: numerical recipe里的快速傅立叶变换
发信站: BBS 未名空间站 (Tue Jul 1 22:39:16 2014, 美东)
最近需要编个cross correlation 的程序, 调用了numerical recipe里的four1 (快
速傅立叶变换)。用简单的正弦函数做测试,通过。上真实数据,发现傅立叶变换后返
回很多NAN的value。数据点也不是很变态,大概是0.01 到3之间。网上google有些人说
这个four1毛病很多。我不是很明白。
这里有懂的可以讲讲么?另外可以推荐个比较robust 的快速傅立叶变换子程序吗?非
常感谢!我用的是fortran.
xiexie!
q**c
发帖数: 179
24
hi ask a question being driving me crazy.
for citations I often disabled it when
using natbib.sty.
sometimes when I made a mistake whey typing,
it would automatically switch to numerical
citation. I had to go back searching for errors.
but now I want to use numerical citation,
it just didn't make a number sequence in
the reference, no matter how I tried.
any possible places I should adjust?
any suggestions?
the number sequence I mean
for example:
[1] alex, a., bob, b., ....
[2] cox, c., dude, d.
a*****r
发帖数: 443
25
不是很明白你前面到底在说什么
把natbib设成numerical然后在里面引用的时候用
citep{}引用就可以得到你要的效果了把
These examples are for author–year citation mode. In numerical mode, the re
sults are different.
\citet{jon90} ) Jones et al. [21]
\citet[chap.~2]{jon90} ) Jones et al. [21, chap. 2]
\citep{jon90} ) [21]
\citep[chap.~2]{jon90} ) [21, chap. 2]
\citep[see][]{jon90} ) [see 21]
\citep[see][chap.~2]{jon90} ) [see 21, chap. 2]
\citep{jon90a,jon90b} ) [21, 32]
如果你要的是reference按照作者姓氏的alphabetic顺序排列或者引用顺序排列的话
那就要取决于你使用的.bst文件了
m****n
发帖数: 51
26
来自主题: Computation版 - numeric recipe code amotry(), bug or not
Both Numerical Recipes in C and Numerical Recvipes in Fortran should be used.

anymore.
m*******r
发帖数: 3635
27
来自主题: Computation版 - 求教:关于Numerical Laplace Inversion
请教各位大虾,
有没有软件数据包可以计算Numerical Laplace Inversion啊?
就是说原函数也都是Numerical的,没有Analytical的形式
非常感谢!
l**p
发帖数: 173
28
【 以下文字转载自 JobHunting 讨论区 】
发信人: lslp (falcondancing), 信区: JobHunting
标 题: 求电子书 Numerical Analysis by Richard L. Burden 多谢
发信站: BBS 未名空间站 (Thu Dec 28 19:16:46 2006)
Numerical Analysis (Hardcover)
by Richard L. Burden, J. Douglas Faires
最好是新的版本的, 比如7th
my email is : f***********[email protected]
多谢
M******e
发帖数: 48
29
来自主题: Computation版 - 哪里能下载到Numerical Recipes?
网络上有,找找吧
cambridge.press.numerical.recipes.3rd.edition.sep.2007.ebook-bbl.rar
numerical.recipes.3rd.edition.code.in.c.plus.plus.v3.01-tbe.rar
b********r
发帖数: 16
30
来自主题: Computation版 - 关于numerical analysis 找工作的问题
本人学的纯数phd, 懂一些numerical analysis 和programming, 想找工业界的工作。
请问如果找numerical analyis相关的工作,应该找什么公司呢?在知识方面还应该加
强什么呢?多谢大家了!
j**u
发帖数: 6059
31
【 以下文字转载自 Faculty 讨论区 】
发信人: PT (Cruiser), 信区: Faculty
标 题: Jackson State University招GRA in Numerical Analysis
发信站: BBS 未名空间站 (Thu Nov 6 15:05:24 2008)
Hi,
I am a Chinese faculty member at Jackson State University (JSU) in Jackson, Mississippi. I am going to recruit a graduate
research assistant starting in January 2009. Here are the some basic
requirements:
Your academic background should be engineering or science related, numerical analysis preferred. You must
be proficient in C/Fortran prog
q**j
发帖数: 10612
32
【 以下文字转载自 Programming 讨论区 】
发信人: qqzj (小车车), 信区: Programming
标 题: Python下面如何进行numeric analysis and statistical analysis?
发信站: BBS 未名空间站 (Mon Feb 9 19:05:01 2009)
google了一把,好像要NumPy and SciPy。但是目前python是2.6, 3.0 版本。numpy只
支持到2.5。看看python 2.6的目录,好像有扔掉numpy自己开发numerical analysis,
data structure这些东西的意思。非常迷惑。请高手给讲讲目前的形势。如果python一
伙人不能够团结起来很快把这些package搞好,就用c++了。所以请高手给推荐几个权威
的package/library吧。多谢了先。
l*****i
发帖数: 3929
33
1.有点用不大
2.要看你是找什么样的part time job了,比如一个教numerical analysis的job,绝对
有用
3.如果你的software engineering只是一门课,那很难说哪个有用(看2)。如果你是指
一个专业...你认为一门课和一个专业有可比性吗?
4.终于看到一个靠谱的问题...我个人以为相对来说machine learning更有用一些,但是
几乎我认识的所有学machine learning的人都上过numerical analysis。
t******g
发帖数: 1136
34
Please recommend a undergraduate textbook for "Numerical Analysis"
I want a undergraduate textbook for "Numerical Analysis".
I want an easy one.
Thank you!
l******n
发帖数: 697
35
【 以下文字转载自 Computation 讨论区 】
发信人: liletian (请你勇敢些), 信区: Computation
标 题: Numerical Recipes in C++ Machine-readable Code, Version 3
发信站: BBS 未名空间站 (Wed Jan 9 17:30:36 2008)
Hi all
Who have Numerical Recipes in C++ Machine-readable Code? Can you send me
a copy? It is too expensive online. Please mail it to l******[email protected].
Thanks
J*****o
发帖数: 97
R********n
发帖数: 519
37
In consideration of work, numerical analysis is more valuable, you will
learn the basic knowledge about numerical algorithms and some optimization
stuffs. Also you will feel you could use this kind of knowledge after this
course immediately
But for the future research, real analysis is extremely useful (it is not
just a simple calculus), at least for the following tracks: machine learning
, information theory, signal processing, graphics, etc.
Such as the following study path: real analysis (plu
l**p
发帖数: 173
38
【 以下文字转载自 JobHunting 讨论区 】
发信人: lslp (falcondancing), 信区: JobHunting
标 题: 求电子书 Numerical Analysis by Richard L. Burden 多谢
发信站: BBS 未名空间站 (Thu Dec 28 19:16:46 2006)
Numerical Analysis (Hardcover)
by Richard L. Burden, J. Douglas Faires
最好是新的版本的, 比如7th
my email is : f***********[email protected]
多谢
b******b
发帖数: 21
39
【 以下文字转载自 Computation 讨论区 】
发信人: blueclub (侠之大者), 信区: Computation
标 题: R&D Engineer Position in Numerical Methods
发信站: BBS 未名空间站 (Tue Sep 18 00:04:19 2007)
Hi, all. We are looking for a strong numerical guy to help us with linear
solvers. The job description has been attached below. Please contact me at
b******[email protected] if interested. We also have some intern positions.
Regards,
Peter
b******b
发帖数: 21
40
【 以下文字转载自 Computation 讨论区 】
发信人: blueclub (侠之大者), 信区: Computation
标 题: R&D Engineer Position in Numerical Methods
发信站: BBS 未名空间站 (Tue Sep 18 00:04:19 2007)
Hi, all. We are looking for a strong numerical guy to help us with linear
solvers. The job description has been attached below. Please contact me at
b******[email protected] if interested. We also have some intern positions.
Regards,
Peter
t*******y
发帖数: 11968
41
请问有什么经典的Numerical Analysis教材推荐? Graduate 等级的
老师打算用Numerical Analysis (Hardcover) by Richard L. Burden (Author), J.
Douglas Faires (Author). 如果这里的朋友认为这个是经典教材就去买硬壳收藏了.
2004的第八版 $172 死贵啊
t******g
发帖数: 1136
42
Please recommend a undergraduate textbook for "Numerical Analysis"
I want a undergraduate textbook for "Numerical Analysis".
I want an easy one.
Thank you!
i*****8
发帖数: 2691
43
来自主题: Mathematics版 - Numerical Analysis审稿 (转载)
【 以下文字转载自 Faculty 讨论区 】
发信人: ice2008 (Sophie), 信区: Faculty
标 题: Numerical Analysis审稿
发信站: BBS 未名空间站 (Mon Sep 21 23:41:26 2015, 美东)
有哪位是numerical analysis背景,愿意帮忙审稿的么?请站内信我。
具体是什么杂志的,我也不知道,我同事叫我帮忙问的。估计是很烂的杂志,大牛们肯
定是看不上的了。加在年终dossier上充充数,聊胜于无吧。
x*z
发帖数: 381
44
请帮忙解释一下numerical modeling,谢谢
x*z
发帖数: 381
45
请帮忙解释一下numerical modeling,谢谢

发帖数: 1
46
Numerical analysis and modeling with applications in fluid and solid
mechanics, physics (of polymeric materials), engineering (mechanical and
mining), and the reliability of electronic devices.
关键词:computational fluid and solid dynamics, fluid-solid interactions,
polymeric materials, numerical and analytical models, material reliability
and characterization, moisture-induced failures, vibration and noise,
microelectronics
相关领域都可以,希望最近有要出paper的版上朋友帮助。
真心请路过 的朋友帮忙引 用文章,本人感激不尽,到时定当答谢,具体可以msg我或
者邮件给... 阅读全帖
B*********h
发帖数: 800
47
来自主题: Quant版 - [合集] numerical computation
☆─────────────────────────────────────☆
Phase (amplitude) 于 (Mon Oct 2 14:51:25 2006) 提到:
用C++做numerical computation到底怎么搞啊?
自己写程序根本不可能嘛
看了一下numerical recipes in C++
但是,好象书里面的源代码,都是要另外花钱买的
郁闷
☆─────────────────────────────────────☆
matII (当归) 于 (Mon Oct 2 14:54:43 2006) 提到:
说说为什么不可能?

☆─────────────────────────────────────☆
Phase (amplitude) 于 (Mon Oct 2 14:59:01 2006) 提到:
算法太复杂啊
比如说做一个大规模的矩阵求逆
或者是求PDE的解析解和数值解
这些算法都不简单啊
用惯了matlab,我已经习惯于输入数据,调用函数,输出结果。。。
☆────────────────────────
W****W
发帖数: 508
48
就是想问问这种numeric test 是什么.
申请了该公司的trading position.
他们说要进行numeric test.有人有过类似的经验么?
还有,一般trading 公司的这种test大家有经验么?
恳请帮助。谢谢
d*******n
发帖数: 524
49
谁有这个paper:
E. Platen,
An introduction to numerical methods for stochastic differential equations
Acta Numer., 8(1999), 197-246
可不可以给我发一份?
谢谢了
B***y
发帖数: 83
50

I am not sure about what problem might occur in the numeric
integration. Just
some suggestions:
1) when r is quite large, sin(kr) is oscillating quite fast, thus
usually you
need to take smaller time-steps to take care of it.
2) since you choose g(k) =1, then \int_0^\infty 1/k sin(kr) dk is not
absolutely
integrable, thus there might be some problem when k is small, where
1/k is quite
large, causing some numeric problem.
good luck.
1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)