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全部话题 - 话题: precision
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kn
发帖数: 2446
1
我恰好前端时间研究过precision和ISE,
把我当时记的笔记抄给你:
然后用Precision生成netlist文件:
a. Precision生成EDIF和UCF
b. Xilinx生成top level的NGC。里面包括一个底层设计(precision的module),作
为黑盒子在ISE里面出现
c. 把Precision生成的UCF改名为NCF,因为ISE只支持一个top的UCF文件;而支持多个
NCF文件
d. 将几个文件(EDIF, NCF, NGC)放到一起进行PR综合,生成最终的bit文件。
n**********e
发帖数: 438
2
① W701有双屏的选择 DS;Precision M6500没有。
② W701换硬盘方便,不用打开机盖;Precision M6500要打开底背壳子。
③ W701换内存方便,可以很容易自己动手换4根;Precision M6500键盘下的那两条内
存不是专业人士甭想自己换。
④ W701可以用托架上第3块硬盘;Precision M6500不能。
x******1
发帖数: 31
3
Of course no way in general for machine learning to guarantee 100% precision
, unless you blindly label everything into positive.
I thought you were talking about the precision-recall curve. Eg. on
http://nlp.stanford.edu/IR-book/roc.html
the blue curve drops from precision=1 at some point,
and you want to push that point to the right as much as possible
(ie, maximize recall under precision=1).
Then Thorsten's method has a case.
w*******y
发帖数: 60932
4
Kobalt 14-Piece Precision Tool Set $9.98:
http://www.lowes.com/pd_83418-16878-54365_4294927325 5003695__?productId=3277261&Ns=p_product_prd_lis_ord_nbr|0||p_product_quantity_sold|1&pl=1¤tURL=/pl_5+10_4294927325+5003695__?Ns=p_product_prd_lis_ord_nbr|0||p_product_quantity_sold|1&facetInfo=$5 - $10
14-Piece Precision Tool Set
Includes 4 mini pliers and 10 precision screwdrivers
Chrome nickel steel pliers and chrome vanadium steel bits for durability
Compact construction for tight spaces and... 阅读全帖
l****z
发帖数: 29846
5
President Obama went on “The Late Show with David Letterman” Tuesday night
to joke about, among other things, his weight, seeing Letterman naked —
and the national debt.
Significantly, when asked by Letterman whether the debt is about “$10
trillion,” Obama avoided the horrifying answer of about $16 trillion by
saying he doesn’t remember “precisely.”
“Here’s what I found troubling [at the GOP convention]…They had the clock
, the debt countdown clock and, I mean, this thing is going like crazy and... 阅读全帖
a******e
发帖数: 119
6
【 以下文字转载自 Biology 讨论区 】
发信人: annoname (summer), 信区: Biology
标 题: Precision Medicine Initiative 会带来更多的工作机会么?
发信站: BBS 未名空间站 (Sat May 2 13:10:55 2015, 美东)
最近发现好多学校都在招 biomedical informatics 的faculty。 不知道是不是和奥8
马的Precision Medicine Initiative 有些关系。 似乎很多州政府也增加了这方面的
投入,更多的科研投入应该会产生更多的工作机会吧,包括faculty。
这个Precision Medicine Initiative 和当年的基因组计划可以相提并论么。不知版上
有没有经历过当年基因组计划的,当年的基因组计划是不是也制造了很多学术界的工作
机会呢?
小的抛砖引玉大家讨论一下.....
dg
发帖数: 546
7
Tylenol Precise Heat Patch $8.49, Regular Price
Use $5.00/1 – Tylenol Precise Product
https://www.precisepainrelief.com/coupon
And use $3.00/1 Tylenol Precise Product from July Walgreens coupon booklet
Final Price: $0.49
p******r
发帖数: 6213
8
不建议交易打印胖子;胖子是免费的,收费的是服务:
出售/交换物品的名称:
Tylenol Precise $5 off and $2 off coupon
物品类别(coupon:mfc等;血糖仪等):
$5 off any precise product, exp 9/18/11
$2 off any precise product, exp 3/1/12
物品来源(报纸夹页,厂家邮寄等):
newspaper insert
bought from ebay
可接受的价格(必须明码标价,必填):
$0.2 一套 + 0.5 shipping
邮寄损失方式哪方承担(若需邮寄,必填):
before me after you
付款方式说明:
non-cc paypal
本贴有效期(必填):
till gone
联系方式(例: 站内):
PM
PS:我在纽约。
a*******s
发帖数: 138
9
来自主题: shopping版 - DELL PRECISION WS490怎么样?
我是电脑外行,看到 Dell Financial Services: 50% off any Precision Laptop or
Desktop的deal就跳了。大侠看看值不值(一共520刀)。
DELL PRECISION WS490 3000MHz 8192MB 80GB (NO O/S) DVDRW 10/100 NIC 256
MB NVIDIA QUADRO FX 3450
The Dell PrecisionTM 490 Workstation incorporates new evolutionary
technologies to ensure maximum productivity for professionals who run
complex applications. This Precision 490 includes an NVIDIA Quadro FX
3450 graphics card. The FX 3500 offers 256MB of GDDR3 dedicated video
memory and extremely fast 3
d**c
发帖数: 515
10
【 以下文字转载自 Hardware 讨论区 】
发信人: ddcc (My, you are a tall one!), 信区: Hardware
标 题: 这个Dell Precision M4700价格怎么样?900刀?
发信站: BBS 未名空间站 (Tue Jan 8 17:43:42 2013, 美东)
Precision M4700
15.6 INCH UltraSharp FHD (1920x1080) Wide View Anti-Glare, Premium Panel
Guarantee
Processor: Intel Core 3rd Gen i7-3720QM Processor (2.6GHz, 6M cache,
Upgradable to Intel vPro technology)
Genuine Windows 7 Professional
Dell Outlet Precision Mobile Workstation M4700 Laptop
750 GB SATA Hard Drive (7200RPM)
8GB Dual Channel... 阅读全帖
e****t
发帖数: 17914
11
Item Description:
-- Precision Mobile Workstation M4600 Laptop Genuine Windows 7 Professional
Unit Price: $1,319.00
Quantity: 1
-- Precision Mobile Workstation M4600 Laptop
-- Internal Backlit Keyboard - English
-- Wave Systems Software
-- 9 Cell Primary Battery
-- Information
-- Certified Refurbished
-- NVidia Quadro 1000M with 2GB GDDR3
-- Service Software
-- Service Software
-- Software
-- 256 GB Dell Mobility Solid State Hard Drive, 1.7MM
-- 15.6 inch FHD (1920x1080) Wide View Anti-Gla... 阅读全帖
r********3
发帖数: 2998
12
目前的machine learning算法似乎没有100%的。如果是100%的规则,那么自己把规则嵌
入系统就行了,不用让machine去learn了。楼上给的paper,根本不是追求100%
precision的。追求100%的precision的话,光靠machine learning的人是搞不出来的。
实际很多问题要追求真正的100% precision,可以考虑实际一些简单,但是有效的方法
。比如一些systematic的方法,或者一些policy,系统架构上的改善。比如要对mp3歌
曲进行机器分类的时候,不妨直接看一下嵌入mp3的meta信息,里面包含了歌手名字,
唱片公司,专辑名字。
w*****s
发帖数: 62
13
现在的T61用了快4年了,一切都好,就是屏幕觉得不怎么样,眼睛经常不舒服(500度
近视),平时主要用途上网,电影,读paper,写写代码。打算最近换一个屏幕好一点
的15.6寸的本本,看了一圈评论,基本上决定去outlet选一个Latitude或者Precision.
看到有人都说眼睛不好最好不要上FHD,我看到FHD都是with Premium Panel,不知道是
什么意思,这个除了分辨率比一般HD高之外,有什么区别呢?
我就希望能比现在T61的屏幕看的舒服,大家觉得屏幕我应该选哪个配置合适呢?另外
Latitude和Precision大家更推荐哪个?我有点偏向Latitude,因为要薄,轻点,但是
不知道散热和稳定性是不是和Precision一个级别。
谢谢。
w****n
发帖数: 31
14
来自主题: Computation版 - extended precision question - GSL
i just wrote the following question to gsl-help mailing list. i want to post
here as well in case someone knows the answer. thank you..
*********
hello,
I am trying to figure how I could use extended precision in my program. I
have been testing the sample program after I set export
GSL_IEEE_MODE="extended-precision". I am just wondering in order to let this
"extended precision" work, how do I define the data type for "x", "oldsum" and
"sum", - long double??
Also, I am a little bit worrying
w*******y
发帖数: 60932
15
Link:
http://www.amazon.com/gp/product/B00472I1V2
Says supplies limited ... added to cart at 25.95... Auto discounted 20%
more.. Total was $20.76
Very good reviews... I needed a scale.. They are 2x this price at the Box
stores..
New 2011 scale uses 4 high precision GX sensors that weigh up to 440 pounds
(200 kilograms) in 0.2lb or 0.1kg increments.
Features a new widescreen LCD with xBright technology provides immediate
and easy to read results.
InstaOn technology captures the precise... 阅读全帖
w*******y
发帖数: 60932
16
Save 50% on refurbished Dell Precision T3500 Performance Desktop with coupon
MG94TKJT733LC3
Dell Outlet:
http://www.dell.com/us/dfb/p/precision-t3500/pd?~ck=anav
Today only. Expires 12/7 11:59pm CT
Example before coupon $819:
Precision T3500
oProcessor: Intel Xeon W3503 Dual Core Processor (2.40GHz, 4M L3, 4.8GT/s)
oGenuine Windows 7 Professional
oPrecision Workstation T3500 Tower Standard Power Supply
o250 GB SATA Hard Drive (7200 RPM)
o2 GB DDR3 ECC SDRAM 1333MHz (2 DIMMs)
o16X DVD ROM Drive
o... 阅读全帖
w*******y
发帖数: 60932
17
Ozeri Precision Digital Bath Scale (400 lb Edition) with Widescreen LCD and
Step-on Activation, in Black
Product Features
New widescreen LCD provides immediate and easy to read results throughout
the day.
Uses 4 high precision G sensors to weigh up to 400 pounds (180 kilograms) in
0.2lb or 0.1kg increments.
Step-on Activation captures the precise weight measurements upon stepping on
the scale (no tapping required).
Sturdy design features an oversized weighing platform with impact-resistant
tempe... 阅读全帖
z***t
发帖数: 2374
18
当然不是了
Precision Medicine刚出来,今年position都是去年批的
基本还是靠bigdata
Precision Medicine还是要以临床为主,informatics只是辅助
b**********r
发帖数: 2664
19
【 以下文字转载自 PennySaver 讨论区 】
发信人: blueskywater (冬天的宝宝), 信区: PennySaver
标 题: 【转让】Precise 5off coupon, RA Walgreens 都可以拿到FREE OR MM
发信站: BBS 未名空间站 (Thu May 5 11:49:37 2011, 美东)
出售/交换物品的名称:
$5 off any Precise product, expires 5/15/2011
20张左右.
物品类别(coupon:mfc等;血糖仪等):
manufacture coupon
物品来源(报纸夹页,厂家邮寄等):
报纸
可接受的价格(必须明码标价,必填):
0.5 each +0.5邮 or 5个包子一张加5个包子邮费
邮寄损失方式哪方承担(若需邮寄,必填):
付款方式说明:
paypal non cc
本贴有效期(必填):
until gone
要买要快,还有10天就过期了,第二天就可以寄.
联系方式(例: 站内):
站内
c****o
发帖数: 1280
20
来自主题: JobHunting版 - c++ float precision
In order to understand the precision, it is better to know how float are
stored in memory. Generally, for float number K, the precision is
2^(log_2(k)-23), when K is between 1 and 2, 2^(-23)~10^(-7).

7bit
c****o
发帖数: 1280
21
来自主题: JobHunting版 - c++ float precision
In order to understand the precision, it is better to know how float are
stored in memory. Generally, for float number K, the precision is
2^(log_2(k)-23), when K is between 1 and 2, 2^(-23)~10^(-7).

7bit
a******n
发帖数: 88
22
来自主题: PennySaver版 - 【转让】Precise 5off coupon
不建议交易打印胖子;胖子是免费的,收费的是服务:
出售/交换物品的名称:
$5 off any Precise product, expires 5/15/2011
(deal for next week, RA Precise sale for $5 each, buy $25 get $10 upr)
物品类别(coupon:mfc等;血糖仪等):
manufacture coupon
物品来源(报纸夹页,厂家邮寄等):
报纸
可接受的价格(必须明码标价,必填):
0.5 each +0.5邮
邮寄损失方式哪方承担(若需邮寄,必填):
付款方式说明:
paypal non cc
本贴有效期(必填):
until gone
联系方式(例: 站内):
站内
h*******n
发帖数: 931
23
话说ra下个星期5快的precise,用了5刀的胖子后免费,另外买5个还可以得10块.我计划
着,计划着.第一次用了包子买了precise的胖子,憧憬着能在ra大赚一把啊,可惜啊,
高兴过早,deal抽风了。谁来发个安慰包给我啊!
k**i
发帖数: 10191
24
Philips Norelco HQ8 Dual Precision Electric Razor Replacement Head $14 +
Free Shipping
Amazon.com has Philips Norelco HQ8 Dual Precision Electric Razor Replacement
Head on sale for $13.99 when you 'clip' $5 off coupon found on the product
page and checkout via Subscribe & Save. Shipping is free. Thanks stevebor1
Note, must be logged into your account. Coupons are typically one use per
account. You may cancel your Subscribe & Save subscription any time after
your order ships.
o*****g
发帖数: 317
25
M4500的CPU是从i5-520起配的。
配i7加钱。
My System Details
DELL PRECISION M4500 BASE Precision Mobile M4500 edit
PROCESSOR Intel? Core? i7-720QM Quad Core 1.60GHz 6MB edit
OPERATING SYSTEM Genuine Windows? 7 Professional, 64-bit edit
WARRANTY & SERVICE 3 Year Basic Limited Warranty and 3 Year Next
Business Day On-Site Service edit
On-Site Service after Remote Diagnosis: for issues covered by Limited
Hardware Warranty, technician and/or part will be dispatched, if necessary,
c******a
发帖数: 4400
26
就是这个视频的开头两三分钟。用XAVIER有两个DLA,原来的他家的DLA。就是reduced
precision DLA,对已知的network做优化用DLA做,比CUDA 更energy efficient 33%,
但其他的网络用GPU在CUDA上做。
两个想法,
老黄对reduced precision accelerator是很上心的,对神经网络结构是了解的,也可
以制造DLA,他不太可能被take by surprise,也不太可能让初创靠降低精度做大了。
现在没有出专门的DL芯片是考虑到多样性。有必要的话肯定是可以出的。
但他说DLA比cuda节能33%,好像我听到一些初创号称的节能性比这个强多了?

发帖数: 1
27
When: Saturday, March 19, 2016; 8:30 AM To 1:00 PM
Where: Institute of Americas, UCSD http://sabpa.org/web/IOA_UCSD-directions-map.pdf
Registration: https://www.123signup.com/register?id=phqyt (please click "
read more" at the bottom left to register)
$20 for regular participants and $10 for students and postヾocs through
online registration by March 17, 2016; $40 for on﹕ite registration;
Breakfast and lunch are included.
Organizer: Sino〢merican Biotechnology & Pharmaceutical Professional
As... 阅读全帖
f*****x
发帖数: 545
28
来自主题: Bridge版 - Problem with precision
yes, not only to precision, but much more severe for precision. isnot it? if
play nature, we would open 1h, then after pd's 3s, u will bid 4c without
problem.【 在 Watson (福尔摩斯的癞皮狗) 的大作中提到: 】
i*********5
发帖数: 19210
29
【 以下文字转载自 Tri 讨论区 】
发信人: ironman2015 (IMMT 2013), 信区: Tri
标 题: 4iiii’s Introduces $399 Power Meter, Precision
发信站: BBS 未名空间站 (Tue Sep 9 23:17:54 2014, 美东)
http://www.dcrainmaker.com/2014/09/4iiiis-introduces-precision.
KV
发帖数: 5728
30
我查了一圈,目前最好的笔记本电脑,是lenovo w系列,dell precision系列,还有就
是hp zbook系列。
这个hp zbook系列的价格简直是太高了,同样配置的2000~3000刀的w或者precision,
换成zbook就要超过5000刀,更贵的更高,hp疯了?
g******d
发帖数: 531
31
来自主题: GunsAndGears版 - 有人买Ruger Precision rifle吗?
好像还行,能稳定在1MOA以内,平均3/4左右。说实话量产枪能在NRA5x5测试下进1MOA
的不多。
http://www.rifleshootermag.com/reviews/ruger-precision-rifle-review/
https://www.americanrifleman.org/articles/2015/7/17/ruger-precision-rifle/
不想折腾的话差不多了,300码也算不上多长的距离。而且换管也不难,想折腾的话也
有空间
h***d
发帖数: 2
32
鹰普公司IMPRO PRECISION是一个有罪的企业!!
虽然在美林证券和大和证券支持下将在香港证券交易所上市IPO,鹰普公司犯有如下罪
行,
1)每年制造逾2000名尘肺病人,占企业员工三分之一强,企业雇员在一年内超过三分
之一患尘肺,所有雇员三年内基本换光;
2)严重污染中国环境;
3)贿赂无锡市各级政府官员;
4)不支付中国劳动法规定的员工离职补偿金;
5)逃税,操纵关联公司交易,其财务经理、总监一般任职不超过二年。
详情如下:
鹰普公司IMPRO PRECISION是一个有罪的企业!!
在美林证券和大和证券支持下,即将在香港联交所上市的鹰普公司,犯有严重的罪行,
投资者必须意识到重大的法律风险!
鹰普每年在制造超过2000名尘肺病患,员工一年内患尘肺机率超过33%;在毒害工人的
同时,还严重污染中国环境。鹰普公司每年工人流失率为33%以上(超过2000名),主
要因为企业以各种理由解雇患有早期职业病的员工。并且,雇员还面临暴力殴打,钢丝
插入眼球等严重伤害……
在我离开这间公司时,陆建秋威胁我说可以让我死得很惨;陆建秋还深夜打电话让我吸
取教训,其贿赂的蠡园街道劳动所所长王崴... 阅读全帖
a***a
发帖数: 149
33
俺只是把SVM当作一个black box...
发现用 polynomial kernel的时候 precision狂高,都是接近100%, recall都是个位数
,这个情况怎么调节参数啊?
用 linear的就都是很好。而且很接近。
另外,如果不用F-measure衡量,用那个break even point,那个point是怎么搞出来的
啊?难道是狂试参数?我这边为啥polynomial kernel的时候 precision跟recall差那
么大啊,这个咋break even point 呢?
谢谢~~ rrdw~~
b*******1
发帖数: 339
34
大家好,
我们实验室有台workstation,目前的memory是12GB,由于经常要跑一些大型计算的仿
真,觉得这个12GB的memory不够用,想把它升级到24GB。我对电脑配件选择不太懂,想请版上
高手帮忙选择 memory 24GB(6X4GB),请把合适memory的网上购买链接 发给我,非常感
谢!
为了便于参考,我把这台workstation的配置描述如下,希望选择的memory能增强这台
workstation的计算性能(计算量、速度、稳定性等)。在此感谢!
Precision Workstation T7500 Tower Genuine Windows 7 Professional
Precision Workstation T7500 Tower
Operating System Label
Certified Refurbished
No Speakers
Processor: Quad Core Intel Xeon Processor E5620 2.4GHz,4M L3,
5.86GT/s
Tower... 阅读全帖
d**c
发帖数: 515
35
Precision M4700
15.6 INCH UltraSharp FHD (1920x1080) Wide View Anti-Glare, Premium Panel
Guarantee
Processor: Intel Core 3rd Gen i7-3720QM Processor (2.6GHz, 6M cache,
Upgradable to Intel vPro technology)
Genuine Windows 7 Professional
Dell Outlet Precision Mobile Workstation M4700 Laptop
750 GB SATA Hard Drive (7200RPM)
8GB Dual Channel DDR3 SDRAM at 1600MHz
8X Slot Load DVD+/-RW Drive
AMD FirePro M4000 Mobility Pro Graphics with 1GB GDDR5
15.6 INCH UltraSharp FHD (1920x1080) Wide View Anti-Gla... 阅读全帖
j**u
发帖数: 6059
36
用了7年的dell precision workstation坏了,打算买个新的workstation,比较稳定可
以常年不用关机的。我对dell precision印象还是挺好的,除了这个,请问大家还有什
么好的推荐吗?谢谢。
g*******g
发帖数: 431
37
来自主题: Hardware版 - Dell Precision M4800如何?
大家觉得Dell Precision M4800怎么样?我想用来做点计算比如跑matlab的程序或者仿
真之类. 这个好像是workstation,比较皮实,但是比较贵. 大家觉得有必要么? 小的笔
记本可以么?
http://www.dell.com/us/business/p/precision-m4800-workstation/f (中间的那个)
谢谢指教!
P******X
发帖数: 482
38
来自主题: Hardware版 - Dell Precision M4800如何?
Precision和Thinkpad W没什么区别。Precision有HDMI接口,有DisplayPort接口,另
外它的USB接口(两个3.0,两个2.0)的位置略好些。W没有HDMI和DisplayPort,有个Mini
DisplayPort接口。W的两个USB 2.0接口的位置比较奇怪,两个USB 3.0的接口上下排
列,用起来挺难受的。其它没什么区别。
不认为主要run matlab的用户能体会出什么区别。simulation看你是哪个industry的,
用不用GPU。一般用户不会看出区别
g*******g
发帖数: 431
39
来自主题: Hardware版 - Dell Precision M4800如何?
大家觉得Dell Precision M4800怎么样?我想用来做点计算比如跑matlab的程序或者仿
真之类. 这个好像是workstation,比较皮实,但是比较贵. 大家觉得有必要么? 小的笔
记本可以么?
http://www.dell.com/us/business/p/precision-m4800-workstation/f (中间的那个)
谢谢指教!
P******X
发帖数: 482
40
来自主题: Hardware版 - Dell Precision M4800如何?
Precision和Thinkpad W没什么区别。Precision有HDMI接口,有DisplayPort接口,另
外它的USB接口(两个3.0,两个2.0)的位置略好些。W没有HDMI和DisplayPort,有个Mini
DisplayPort接口。W的两个USB 2.0接口的位置比较奇怪,两个USB 3.0的接口上下排
列,用起来挺难受的。其它没什么区别。
不认为主要run matlab的用户能体会出什么区别。simulation看你是哪个industry的,
用不用GPU。一般用户不会看出区别
i******t
发帖数: 22541
41
来自主题: Hardware版 - 急问 这个多钱 拍下就可以?Dell Precision T3500~Six-Core! [email protected]^4x 300GB
Dell Precision T3500~Six-Core! [email protected]
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^4x 300GB
写的 3690 或者 3580 不知道具体哪个 另外 是used??
多钱拿下核算?? 小于 370??多谢
http://www.ebay.com/itm/Dell-Prec... 阅读全帖
mw
发帖数: 525
42
【 以下文字转载自 Linux 讨论区 】
发信人: mw (mw), 信区: Linux
标 题: how to get time() result in millisecond precision?
发信站: BBS 未名空间站 (Mon Nov 24 15:05:29 2008)
hi, gurus:
we kknow that time() returns the seconds passed since 1970 UTC time. Can we
get the millisecond precision?
is there any specific function to do this?
thanks
l***q
发帖数: 208
43
来自主题: Programming版 - CPU double precision (转载)
【 以下文字转载自 CS 讨论区 】
发信人: leeiq (Sapphire 4870), 信区: CS
标 题: CPU double precision
发信站: BBS 未名空间站 (Mon Aug 3 19:56:05 2009, 美东)
有没有理论的公式计算CPU的double precision计算能力能达到多少GFLOPS,以E8500为
a******e
发帖数: 119
44
最近发现好多学校都在招 biomedical informatics 的faculty。 不知道是不是和奥8
马的Precision Medicine Initiative 有些关系。 似乎很多州政府也增加了这方面的
投入,更多的科研投入应该会产生更多的工作机会吧,包括faculty。
这个Precision Medicine Initiative 和当年的基因组计划可以相提并论么。不知版上
有没有经历过当年基因组计划的,当年的基因组计划是不是也制造了很多学术界的工作
机会呢?
小的抛砖引玉大家讨论一下.....
t*s
发帖数: 1504
45
来自主题: Computation版 - !!! How to adjust precision in CPLEX !!!
【 以下文字转载自 Faculty 讨论区 】
发信人: tes (286), 信区: Faculty
标 题: !!! How to adjust precision in CPLEX !!!
发信站: BBS 未名空间站 (Tue Oct 16 14:16:19 2007), 转信
Urgent!!!
How to adjust CPLEX so that it produces a less precise result (for less time)
l***0
发帖数: 35
46
来自主题: Computation版 - 问个关于precision和accuracy的问题
现在我有一万个数据,数据有四种形式
a: {x, dx1, dx2},
b: {dx1, dx2},
c: {dx1},
d: {dx2}
其中
x: central value,
dx1: upper error bar,
dx2: lower error bar
现在需要一种数学上合理的方式把他们转成一下形式:
a: x with its precision, which is function of x, dx1, dx2
b: (dx1 + dx2)/2 with its precision, which is function of dx1, dx2
c: 0 with accuracy, which is function of dx1
d: 0 with accuracy, which is function of dx2
Any suggestions how these precisons and accuracies can be determined ?
w*******y
发帖数: 60932
47
Amazon has the Oral-B Vitality Precision Clean Rechargeable Electric
Toothbrush for $12.59, or for $12.15 if bought from vendor DAB Nutrition
through Amazon buying choices. Shipping is Free with Amazon Prime or if you
spend $25 or more.
Link:
http://www.amazon.com/Vitality-Precision-Clean-Rechargeable-Toothbrush/dp/B000GBICYE/ref=sr_1_2?ie=UTF8&s=hpc&qid=1276868025&sr=1-2
w*******y
发帖数: 60932
48
8-LED Portable Folding LED Light Lantern $1, High Precision Anti-static
Stainless Steel Tweezers (Black) $0.39, 5 LED Head Lamp $1
8-LED Portable Folding LED Light Lantern:
http://www.meritline.com/ch-6789-portable-folding-led-light-lantern---p-42163.aspx
$1 w/ code MLCK24877111 4071AL1
High Precision Anti-static Stainless Steel Tweezers (Black)
$0.39 w/ code MLCK24858611 0482AL1
5 LED Head Lamp:
http://www.meritline.com/led-flashlight-206-flesh---p-25400.aspx
$1 w/ code MLCK24800111 0466... 阅读全帖
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