h******i
发帖数: 661 | 1 你们学校ap能发这么多paper?
1989
Cosmological implications of quasar-galaxy associations, L.Z.Fang, Y.Q.Chu
and X.F. Zhu, Mod. Phys. Lett., 4, 887.
Geometrical optics in an inhomogeneous universe, L.Z.Fang and X.P.Wu,
Chinese Phys. Lett., 6, 233.
Quasar clustering and its cosmological implication, L.Z.Fang, Inter. J. Mod.
Phys. A4, 3477.
L'Osservatorio astronomico di Pechino: la sua storia, il presente, L.Z.Fang,
Scienza e Tecnica, Annuario della EST 88/89 404.
Overview on the frontier of high energy astr... 阅读全帖 |
|
b***y
发帖数: 14281 | 2 No. The search include his early works up to 1978. Here is the same list
sorted by year.
1) The Influence of Gravitation on the Vacuum State.
By Li-Zhi Fang.
Acta Phys. Sinica 27 ( 1978) 181-18.
2) THE STRUCTURE AND STABILITY OF THE ABNORMAL NEUTRON STAR.
By Li-Zhi Fang, Qin-Yue Qu, Zhen-Ru Wang, Tan Lu, Liao-Fu Luo.
Sci.Sin.22:187-198,1979.
3) Some Recent Developments in Astrophysics. (Talk).
By Li-Zhi Fang, A. Qadir, R. Ruffini.
In *Nathiagali 1980, Proceedings, Physics and Contemporary Needs... 阅读全帖 |
|
S******8
发帖数: 24594 | 3 老方到美国后发的文章列表，你自己看吧：
1990
174. Biased clustering in a universe with hot dark matter and a cosmic
string, L.Z.Fang, S.P.Xiang and L.Yan, Astr. & Astrophys. 233, 1.
175. Periodicity of redshift distribution in a T-3 universe, L.Z.Fang, Astr.
& Astrophys. 239, 24.
176. An upper limit to quasar's peculiar velocity, L.Z.Fang, Y.Q.Chu, X.F.
Zhu and L.F. Wang, Inter. J. Mod. Phys., 5, 2993.
177. Quasar pair and quasar's peculiar velocity, L.Z.Fang, Developments in
general relativity, astrophysics and qu... 阅读全帖 |
|
t******l
发帖数: 10908 | 4 既然不可测集根本不能出现，那你高中代数以及解析几何为啥要基于实数集，而不是可
测实数集？不是更简单？
当然为了避免心很累，我得重申根号数或者虚数之类的意义，因为比如斐波那契直接计
算式，你可以中间出现根号数，但最后回到整数。。。虚数同理。
但这个不可测集，你如果连中间步骤都不能出现，你们要这么繁杂的测度论是图个啥，
在 cantor diagonal argument 那边放块 "游客止步" 的牌子不行？。。。
当然你要是说千老也要吃饭，那我倒是能接受，将心比心。。。
其实以上这些都算了。。。我就问你，我高中解析几何里，算一单位正方形面积的时候
，正方形里面的点集实数集 R2 的子集，是可测集还是不可测集？。。。如果你说可测
，要不要我搬 cantor diagonal argument 出来。。。如果你说不可测，那不可测集我
到底能用还是不能用？还是每次用以前我给查经班打个电报问一下？
: 这不能算悖论啊？这只是让人类感觉不舒服而已。ZFC并没有隐含几何测
量守恒
定律。
: 几何测量守恒定律是人的直觉，但是这个直觉和连续统存在是相互矛盾的
。所以
才出现
... 阅读全帖 |
|
J*******3
发帖数: 1651 | 5 丰田2013年6月6日公开了预计将于年内作为2014年款投放市场的新一代“卡罗拉”（北
美版）的概要，价格及详细性能指标将在临近上市时发布。
这是第11代卡罗拉，为了吸引更年轻的用户而非维持以往用户，继“Avalon”
及“RAV4”之后，丰田再次采用了个性强烈的外观设计。前脸以较扁的前大灯以及下部
带大开口的保险杠等为特点，并搭配大幅膨出的翼子板以及向后平缓下滑的C柱。
新款卡罗拉的外形尺寸为长4639×宽1776×高1455mm，与上代车型相比车长增
加99mm，车宽扩大16mm，但车高降低10mm。轴距为2700mm，比上代车型长100mm。由于
轴距更长，因此后座臀点后移了75mm，另外还通过减薄前座靠背，使后座乘坐空间变得
宽敞。
图2：“LE Eco”的后视图 （点击放大）
图3：侧视图 （点击放大）
图4：LE Eco的内装 （点击放大）
图5：S的内装 （点击放大）
新一代卡罗拉设有“L”、“LE”、“S”和“LE Eco”四种级别。前三个级别
的款... 阅读全帖 |
|
g**f
发帖数: 1847 | 6 Envy 6t ask for $730
• Midnight Black with Ruby Red Soft Touch (base)
• Genuine Windows 7 Home Premium 64-bit
• FREE Upgrade to 4GB 1600MHz DDR3 System Memory (1 Dimm)
• FREE Upgrade to 500GB 5400 rpm Hard Drive
• HP TrueVision HD Webcam with integrated dual array digital
microphone
• 802.11b/g/n WLAN and Bluetooth(R)
• 15.6-inch diagonal HD BrightView LED-backlit Display (1366x768)
• Microsoft(R) Office Starter: reduced-functionality Word/Excel(R)... 阅读全帖 |
|
f****g
发帖数: 23666 | 7 sd上的list：
Toshiba Satellite (L75-B7150) Laptop
Item: 1545056 (in store price is different) [staples.com]
$599.99 - $200 instant savings - $50 easy rebate - $100 coupon = $249.99
Intel? Core? i3-4005U Processor
6GB DDR3L 1600MHz
500GB (5400 RPM) Serial ATA hard disk drive
17.3” diagonal widescreen TruBrite? TFT display at 1600 x 900 native re
solution (HD+)
Dell Inspiron (I3541-5001BLK)
Item: 1387728 (in store price is different) [staples.com]
(Reg. price $... 阅读全帖 |
|
n*********2
发帖数: 357 | 8 <<我觉得你的理解错了。量子态并不是不可以复制，但是一旦复制，就很容易被对方发
现>>
It might be easier to debate this in English. First, let me rush to say that
I am not a physicist and my understanding of QKE might be flawed.
Let's use photon as an example, since photon has been widely used in a
simplified version of quantum key exchange (QKE). In an oversimplified case,
photon can be either rectilinear (with an angle of 0 or 90) or diagonal (
with an angle of 45 or 135); this rectilinear/diagonal property is called
its orientation. ... 阅读全帖 |
|
H*******U
发帖数: 596 | 9 Envy 4t
• Midnight Black with Ruby Red Soft Touch (base)
• Genuine Windows 7 Home Premium 64-bit
• FREE Upgrade to 4GB 1600MHz DDR3 System Memory (1 Dimm)
• FREE Upgrade to 500GB 5400 rpm Hard Drive
• HP TrueVision HD Webcam with integrated dual array digital
microphone
• 802.11b/g/n WLAN and Bluetooth(R)
• 14.0-inch diagonal HD BrightView LED-backlit Display (1366 x 768)
• Microsoft(R) Office Starter: reduced-functionality Word/Excel(R)
only, No P... 阅读全帖 |
|
x****r
发帖数: 17 | 10 the worst case is not the case when the element is not in the matrix, in
that case, I only need log(n) to finish, along the diagonal, because of Y
table's property left upper = min, right lower = max.
it seems to me, the worst case happens when the element falls as in the
middle as possible along the diagonal ... then we have the most left
elements.... just a guess
thanks for the interesting problem |
|
i*******n
发帖数: 114 | 11 ------------------------这题超难---------------------------
The string "paypal is the faster, safer way to send money" is written in a
diagonal pattern inside a rectangle: (you may want to display this pattern
in
a fixed font for better legibility).
P Y L H S S R T N
A A T A R E Y E O
P S F E F A S M E
I E T A W O D N Y
The diagonal pattern is from lower left to upper right, e.g. for a 4xN
rectangle, 1234567890 would be written as:
1 3 6 0 ...
2 5 9 ...
4 8 ...
7
Then... 阅读全帖 |
|
r*****b
发帖数: 310 | 12 What the interviewer wanted to ask is to how to check the winning condition
while a Tic-Tac-Toe game is going on. We can use two arrays + two intergers
to record the number of 1s that appears in each row, column, diagonal, and
anti-diagonal.
http://basicalgos.blogspot.com/2012/03/13-test-winning-conditio
false。
case |
|
r*****b
发帖数: 310 | 13 What the interviewer wanted to ask is to how to check the winning condition
while a Tic-Tac-Toe game is going on. We can use two arrays + two intergers
to record the number of 1s that appears in each row, column, diagonal, and
anti-diagonal.
http://basicalgos.blogspot.com/2012/03/13-test-winning-conditio
false。
case |
|
e****e
发帖数: 418 | 14 Apply binary search on diagonal elements (0,0), ... (m-1,n-1).
When the number is not on the diagonal line, we can do the binary search
until:
A[r][s] < num < A[r+1][q]
Then we know num must be either in array A[r][s+1],... A[r][N-1] or A[r+1][0
],...A[r+1][q-1] if the matrix has the element.
The we do binary search on those two one-dimensional arrays one by one.
The running time is O(log(N+M)) |
|
v***o
发帖数: 287 | 15 来自主题: JobHunting版 - 电面题一个 Given a 2D matrix, print all elements of the given matrix in diagonal order.
For example, consider the following 5 X 4 input matrix.
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
Diagonal printing of the above matrix is
1
5 2
9 6 3
13 10 7 4
17 14 11 8
18 15 12
19 16
20 |
|
v***o
发帖数: 287 | 16 来自主题: JobHunting版 - 电面题一个 Given a 2D matrix, print all elements of the given matrix in diagonal order.
For example, consider the following 5 X 4 input matrix.
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
Diagonal printing of the above matrix is
1
5 2
9 6 3
13 10 7 4
17 14 11 8
18 15 12
19 16
20 |
|
uj
发帖数: 324 | 17 * Your TicTacToe object will be instantiated and called as such:
* TicTacToe obj = new TicTacToe(n);
* int param_1 = obj.move(row,col,player);
题目是给你空旗盘，然后一系列moves
如果解法是keep track rows, cols, diagonal, anti-diagonal 用掉空间 O(n),
每一个move， 需要update 和检查4个数，你觉得是 N square complexity ?? |
|
M*******g
发帖数: 224 | 18 I go to fatwallet check everyday, here is the list:
Westinghouse 32" 720p LED HDTV Meijer $249.00 [add to favorites]
Viore 40'' 1080p LCD HDTV Meijer $349.00 [add to favorites]
LG 47'' 1080p 120Hz LED HDTV Fred Meyer $649.99 [add to favorites]
Famous Brand 40'' 1080p LED HDTV Fred Meyer $399.99 [add to
favorites]
Famous Brand 32'' 720p LED HDTV Fred Meyer $299.99 [add to
favorites]
Toshiba 23'' 720p LCD HDTV -32C110U (After $50 Maill-In Rebate) hhg... 阅读全帖 |
|
w**********c
发帖数: 17 | 19 There are 4 hairline cracks in the unfinished area, I asked the history of
the cracks as far as owner knows. They did not answer at the first time.
After a few day in my second attempt,
they surprised me by replying " are you referring to the professionally
treated crack...".
I immediately followed with request of
warranty copy, repair paperwork and answers of which wall and if it is
vertical/diagonal/horizontal. It's been 4 days, I sent them 3 emails with
the same request, each time they just r... 阅读全帖 |
|
h*****y
发帖数: 783 | 20 我们的inspector说横纹竖纹都很不是大事，diagonal的裂纹最可怕。第二个图看起来
就是diagonal的吧，还是pass吧 |
|
M*********s
发帖数: 1086 | 21 沙发尺寸是104 （w) x 44 (depth) x 35 (height). diagonal是36. 我的门框间距是
35 （要把门卸下来）. 商家网页上说必须门宽于diagonal， 那我的门小于36，就不行
了。 我不懂，为什么不能用最短的一边，即它高度的一边进门？ 打了电话，又说可以
， 但让我和送货人再确认一下。 唉，实在喜欢那样式， 但进不了门的话要损失二百
多的运费。 你们说，有一边和门一样， 就该能进， 对不对？ |
|
b*x
发帖数: 5456 | 22 我的拼法是guest， 是这样，
上面3×6 45度 diagonal。
然后ogge，
然后 6×6 zigzag。
主卧淋浴房用 12×12贴墙壁，然后类似的pencil， 再6×6的diagonal， 中间加3个
accent。
再用pencil， 上面用6×12zigzag。 4×4 地板，
外面用12×12 zigzag。 洗澡盆墙面用6×12 zigzag。 |
|
b*x
发帖数: 5456 | 23 没有， 这是我copy的晚上的pattern。 我家客房是第二张类似的颜色（scaba）
主卧是creme的marble， 第一张有点像。
而pattern， 俺家主卧用第二种，12×12贴墙壁，然后类似的pencil， 再6×6的
diagonal， 中间加3个accent。 再用pencil， 上面用6×12zigzag。 4×4 地板，
外面用12×12 zigzag。 洗澡盆墙面用6×12 zigzag。 ，
客房用第一张的pattern，
上面3×6 45度 diagonal。
然后ogge，
然后 6×6 zigzag。 |
|
|
F***Q
发帖数: 6599 | 25
来。
I also heard from an inspector that a diagonal crack is bad. but it is
really hard to know whether this implies a foundation problem. If it is just
a hairline crack and is stable for many years, then it is just one of the
settling marks. But if it is a big crack, or getting worse every year, then
you should definitely be worried.
the first house we had an inspection had a diagonal crack along the chimney,
we did not take it in the end because of some other issues. |
|
s*******c
发帖数: 5161 | 26 ☆─────────────────────────────────────☆
az (哥哥小弟和弟弟大哥) 于 (Sat Nov 17 00:14:50 2012, 美东) 提到:
家里公司的事情忙得透不过气来，要结网一阵子，如果有问题，可以发到我的信箱来。
。。祝大家孩子都健健康康，顺顺利利的
散尽家财了，祝福弟弟健康，不要再生病，咳嗽哮喘了，希望月月健康，进步快快
问些关于哮喘的问题，如果哪位有经验，请赐教：弟弟连续大概40天内三次wheezing，
跑了两次ER，若干次诊所了。。。最近这次发病很快，之前一天是感冒症状，打喷嚏流
鼻涕，晚间很轻微的咳嗽，第二天咳嗽加重，但是也只是咳嗽，吃完晚饭开始呼吸声加
重，很快呼吸就出了问题，明显有些吃力，弟弟8点多睡了，wheezing很明显了，而且
呼吸很快，达到56次每分钟，略微有体温，咨询了护士之后，说由于呼吸频率高，体温
的原因，让立刻去ER。。。本来还犹豫，担心ER要等，被护士一说慌了，赶紧奔医院了
。。。这里说一下，小宝还是慎重些，ER没那么可怕，可能我们比较小，情况比较紧急
吧，两次ER都是几乎没等的，很快就进去做常... 阅读全帖 |
|
m*****y
发帖数: 3981 | 27 这个回答不错。
2者各有利弊，看哪个跟适应你了。
futures 的margin call 要求比 ETF 高很多。
futures 的margin call 一天基本上跟新一次 offline （除非你close your futures
positions)，futures option 的margin call 是online - 及时跟新。 ETF 的
margin call 是及时跟新的。
futures 的 option 比 futures 的 交易费便宜。
p.s. futures 的 options 不可以直接上diagonal spread, ETF 的 options 可以直
接上diagonal spread |
|
m*****y
发帖数: 3981 | 28 这个回答不错。
2者各有利弊，看哪个跟适应你了。
futures 的margin call 要求比 ETF 高很多。
futures 的margin call 一天基本上跟新一次 offline （除非你close your futures
positions)，futures option 的margin call 是online - 及时跟新。 ETF 的
margin call 是及时跟新的。
futures 的 option 比 futures 的 交易费便宜。
p.s. futures 的 options 不可以直接上diagonal spread, ETF 的 options 可以直
接上diagonal spread |
|
E***r
发帖数: 1037 | 29 错开 strikes 就是 diagonal spread，其实就是 vertical 和 calendar 的简单叠加
，兼有两者特性。如果你是要 short (delta < 0)，需要 long strike > short
strike，不管用 put 还是用 call 做。
BTW，只要是互相 offset 的两腿组合，不管是 vertical、calendar、diagonal、
strangle 还是 straddle，沿options table 左右翻转以后（call 变 put、put 变
call）都是完全等效的，所有 greeks 都一样。比如 vertical -30C/+50C 跟 -30P/+
50P 等效，ITM strangle +30C/+50P 跟 OTM +30P/+50C 等效。既然等效，选谁呢？谁
OTM 选谁，毕竟 OTM 比 ITM liquid。put 和 call 是一样的。 |
|
S**r
发帖数: 2478 | 30 CL上二手的都要350左右。
http://www.cowboom.com/deal-of-the-day.cfm
Apple MB292LL/A 16GB iPad with Wi-Fi
MSRP: $499.99
Today: $299.99
+ $5.00 shipping
Apple MB292LL/A 16GB iPad with Wi-Fi
Introducing iPad. It's the best way to experience the Web, e-mail, photos,
and video. All on a big, beautiful Multi-Touch screen. With just the touch
of a finger.
Features
9.7" (diagonal) LED-backlit display with IPS technology
Multi-Touch screen
Built-in Wi-Fi (802.11a/b/g/n)
Up to 10 hours of battery life
Bluetooth 2.1... 阅读全帖 |
|
q**j
发帖数: 10612 | 31 【 以下文字转载自 Statistics 讨论区 】
发信人: qqzj (小车车), 信区: Statistics
标 题: 求助：Matlab里面如何分解矩阵？
发信站: BBS 未名空间站 (Fri Jan 28 13:02:47 2011, 美东)
打算把一个positive definite, symmetric 的矩阵分解成两个矩阵， i.e.，
A = B*B.
按照原理可以用eigen decomposition 把A分成 V*D*V^(-1)。其中D是diagonal的。因为
A是正定的所以D的对角线上面都是正数。所以定义E是D的平方根，
A= V*D*V(-1) = V*E*E*V(-1) = V*E*V(-1) * V*E*V(-1)，所以定义
B = V*E*V(-1)，就可以有A = B*B。
可是在matlab里面用了 [V,D]=eig(A)以后，出来的D不是diagonal的。应该是计算精度
的问题吧。这下怎么办？有没有好办法来对付这个问题？多谢了。 |
|
m******o
发帖数: 122 | 32 One professional player told me if both right hands, the player in the right
side should move a little bit more to right, and left partner cover more
court. If opponent smash straight, the right side player can easily make
quality return because he only need to cover 1/3~1/2 court. If opponent
smash diagonal, the left side player can simply return straight, and it is
diagonal for opponent side. |
|
v*****r
发帖数: 2325 | 33 thank you for the diagonal idea!
yes, next time i will take the diagonal path, which means I take the first
matress from left and shoot for the narrow cave-in back fence, only that way
fence hit indicates 238+yard carry. other than that, fence hit only
indicates 220 or less carry.
the first green(par4) is about 60 yard behind the fence, i hope one day i
could get range balls to its vincinity, :) feel like a child again...
i would rather get KICKED by the manager than looking at the back fence
h |
|
S*A
发帖数: 7142 | 34 望远镜有那个 45 度的 Right angle diagonal, 取代普通的 diagonal
看到的就是正的了。 Finder Scope 经常用的。
我觉得最好是类似 Celestron C90 Mak 那样的，特别小，焦距长。放大
倍数容易上去。 |
|
l******n
发帖数: 115 | 35 Up and lower body separation doesn't necessarilty solve backseat problem.
And up-unweighting itself has nothing to do with back seat problem. The key
is, when you stand up and unweight your skis, you need to either move your
body forward or pull your feet back and under your body. By doing this, you
elimiate the backseat issue and maintain a foward postion, which enables you
to move your upbody diagonally (10 o'clock or 2 o'clock direction mentioned
in snowrider's comments)into the turn. Once yo... 阅读全帖 |
|
t*******r
发帖数: 22634 | 36 开始先躺在水里肚皮朝上，flutter kick。
开始还是挺容易呛水的，找浅的水池。实在不行开始先憋着气踢。还有就是
让别人帮着托一下头。时间长就可以了，如果在有一定的 kick 推进力的
情况下，不呛水的最重要点是保持平衡从而保持头部位置。
其实头部位置过高也会导致呛水，因为马上会掉下去。。。只有合适的位置
才不呛水。
TI 的教学都是先在浅池。不过太浅的池，要注意不要肚皮往下 kick，
不小心的话，可能会踢池底伤脚趾。TI 的练习，在超级浅的 baby 池
里面，其实也只有 side kick 最安全了，不过一般也不用去那么浅的。。。
TI 的 kick drill 基本上就是肚皮朝上和两个 side 的 kick。
据说浮力板练力量，但是不练水中的平衡，因为浮力板给了虚假的支点。
另外浮力板不容易练 diagonal kick，但据说 diagonal kick 对横滚
的平衡很重要。 |
|
T*****T
发帖数: 199 | 37 Rafael Nadal: my pre-game rituals sharpen my senses before I go into battle
Before a big match my mental state is as taut as it is fragile. I have to
follow my locker room rituals in the same order always. It’s like a great
big matchstick structure: if every piece is not symmetrically in place, it
can all fall down.
By Rafael Nadal6:45AM BST 16 Aug 2011Comment
Forty-five minutes before facing Federer I began the last phase of my
pre-game ritual. I took a cold shower. Freezing cold water. I... 阅读全帖 |
|
n****m
发帖数: 55 | 38 Orlando US和IA最特别的我觉得就是Harry Potter主题的两个景点，目前开放的
Hogsmead在US里，今年夏天马上开放的Diagon Alley在IA，中间有Hogwarts Express小
火车连接，如果是Harry迷的话一定不要错过，这可都是别的地方的Universal Studio
所没有的。但如果你去的时候Diagon Alley还没对外开放且只想逛一个园的话，US好玩
的项目比IA略多点。
计划去一次Orlando的Universal Studio和Islands of Adventure。但我们两个人一个
去过LA的Universal Studio Hollywo........ |
|
|
a***g
发帖数: 24 | 40 4. Diagonals:
Diagonals indicate direction, movement, growth; they are dynamic.
5.Framing:
(前面介绍过了)
6. Look for Odd Numbers:
The human eyes likes odd numbers, In nature, look for the single perfect
flower, a stand of three birches, a lone tree on a hill.
这个其实并不是一个很好的Odd Numbers的例子.只是感觉在一丛一模一样的花丛中,凸
现出一束红色的花,非常漂亮.
7. Simplify:
Try to reduce the image to its elements. Always ask yourself: what is the
subject? Tips:
1) Eliminate cluster: check edges, foreground and background.
2) If the subject has |
|
a*******e
发帖数: 3021 | 41 Lens focal length (mm): 50 FOV (horizontal) (feet/meters): 2.7m
Focal length multiplier: 1.6 FOV (vertical) (feet/meters): 1.8m
Distance to Subject: 6m FOV (diagonal) (feet/meters):
D*[email protected] = 1.54m
Lens focal length (mm): 200 FOV (horizontal) (feet/meters): 2.7m
Focal length multiplier: 1.6 FOV (vertical) (feet/meters): 1.8m
Distance to Subject: 24m FOV (diagonal) (feet/meters):
D*[email protected] = 1.52m |
|
s**********s
发帖数: 4255 | 42 为啥sensor周围要有多余的像素？
本来以为是技术问题，好像这都是有规定的。例如43系统
The sensor measures 18 mm × 13.5 mm (22.5 mm diagonal), with an imaging
area of 17.3 mm × 13.0 mm (21.6 mm diagonal), |
|
A********e
发帖数: 4 | 43 M43 sensor measures 18 mm × 13.5 mm (22.5 mm diagonal), with an imaging
area of 17.3 mm × 13.0 mm (21.6 mm diagonal) |
|
x****k
发帖数: 661 | 44 你说的有几个问题，我一个个写，你看看make sense不。
你可以估算一下一些参数。
搭配的32mm对应1250/32=39倍放大。月亮本身视角是30”，也就是0.5°，放大39倍的
时候大概20°视角。然后那个eyepiece的apparent viewing angle是50°，所以整个月
亮也不会填满整个eyepiece view的。
8-9mm的eyepiece才能放大到看具体细节。不过一般看整个月亮的话40倍也不差了。
看月亮就是要在月缺的时候看明暗交界的地方的阴影变化，满月也可以，不过整个月亮
都很亮，contrast反而不足，细节而不明显。
在保证对焦没问题的基础上。你说的不清楚有很多可能得原因，一个是seeing，大气扰
动导致——就像你大热天看到马路上冒热气。一个可能是那个diagonal，你可以试着直
接把diagonal拿掉，直接把eyepiece接上——我的经验是这样一般好很多。 |
|
|
w********1
发帖数: 3492 | 46 Thu, 26 Jul 2012 15:10:06 PDT
The plethora of court cases between Apple and other companies over
trademarks, design decisions, and patents have only occasionally offered
anything of interest to the average observer. Today, however, The Verge has
dug up a treasure trove of images of early iPhone and iPad prototypes.
Early designs include an eight-sided iPhone with diagonal corners, early
Sony-inspired designs, and another model that has the same aluminum-based
design as the old iPod Mini.
Of part... 阅读全帖 |
|
j********u
发帖数: 1174 | 47 想入个电脑，不知道那个更好些，求大牛帮忙比较下
如果此版不合适，帮我转帖下，多谢
HP Pavilion 15t-n200 Notebook PC with Windows 7
• Windows 7 Home Premium 64
• 4th generation Intel® Core™ i5-4200U Processor + Intel&#
174; HD Graphics
• 15.6-inch diagonal HD BrightView LED-backlit Display (1366x768)
• 8GB DDR3 System Memory (1 Dimm)
• 750GB 5400 rpm Hard Drive
• No Additional Office Software
• Security Software Trial
• 4 Cell Lithium Ion Battery
• SuperMulti 8X DVD +/- R/R... 阅读全帖 |
|
k*****6
发帖数: 26 | 48 有python比较熟练的朋友帮忙看下这两道题吗？万分感激。。
Do both of these problems using at least one loop each and not using any
special pre-existing functions that give you the answer with just one line
of code.
1. Make a function to count the number of times a specified number is
repeated in a list/array. That means that if we have a number list
numberList=[5, 12, 0, 7, 2, 5, 10, 9, 12, 5];
and we use the function call
numRepeats(numberList, 5)
we get the output: 3 --- meaning 5 occurs three times in numberList.... 阅读全帖 |
|
h******g
发帖数: 32 | 49 想给弟弟（大学毕业刚工作）带个笔记本回去，请懂行的帮忙推荐一下，打算买比较好
的，价格600刀～1000刀之间，不打算买dell的，一是感觉这个品牌在美国也算比较低
端，二是以前在国内的时侯被他们坑过。主频、硬盘、内存等参数估计差别不大，别的
参数一大堆看不太懂，不知道如何看出是独立显卡（比如下面的例子），还有的光驱可
以播放3D电影，不知道这样的机子是不是华而不实是否值得买，还有双核的话是不平时
也用处不大？
http://www.deals2buy.com/categories/laptop/deals
（这个网址的机子哪款比较合适望能推荐下）
HP Pavilion dv7t, Intel(R) Core(TM) i3-380M Dual Core Processor (2.53 GHz),
17.3" diagonal HD+ High-Definition HP LED BrightView, 4GB RAM, 500GB 7200rpm
, SuperMulti 8X DVD+/-R/RW with Double Layer Support, Intel(R) HD Gra... 阅读全帖 |
|
j********u
发帖数: 1174 | 50 【 以下文字转载自 ComputerGraphics 讨论区 】
发信人: jackshushu (jack), 信区: ComputerGraphics
标 题: 求比较那个电脑好一些HP Pavilion 15t-n200 vs Toshiba Satellite®
S55-A5176
发信站: BBS 未名空间站 (Mon Jul 7 09:59:48 2014, 美东)
想入个电脑，不知道那个更好些，求大牛帮忙比较下
如果此版不合适，帮我转帖下，多谢
HP Pavilion 15t-n200 Notebook PC with Windows 7
• Windows 7 Home Premium 64
• 4th generation Intel® Core™ i5-4200U Processor + Intel&#
174; HD Graphics
• 15.6-inch diagonal HD BrightView LED-backlit Display (1366x768)
• 8GB D... 阅读全帖 |
|
