content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Complex Roots
March 20th 2008, 09:03 AM #1
Super Member
Joined
Oct 2007
From
London / Cambridge
Posts
591
Complex Roots
the first part is straightforward. for the roots i get $\alpha^0 , \alpha^1 , \alpha^2 , \alpha^3 , \alpha^4 , \alpha^5 , \alpha^6$.
For the quadratic I guessed got the root as... | 5 | [
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GMAT
Author Message
Post subject: If w, x, y, and z are integers
mclaren7 Posted:
Sun Apr 13, 2008 10:12 am
Dear moderators and friends,
If w, x, y, an... | 4 | [
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Differential equation
May 28th 2007, 10:05 AM #1
Newbie
Joined
Apr 2007
Posts
15
Differential equation
Hi, I need some help on this DEQ
A spherical raindrop evaporates at a rate proportional to its surface area. Write a differential equation for the volume of the raindrop as a function of time.
... | 5 | [
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Certificate Transparency
Certificate Transparency
certificate-transparency-draft
Status of this Memo
This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also dis... | 4 | [
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Condition for Commutative Ring to be a Field.
March 1st 2011, 01:37 PM #1
Member
Joined
Oct 2009
Posts
128
Condition for Commutative Ring to be a Field.
Hi,
Suppose $R eq \{0\}$ is a commutative ring with no zero divisors.
Suppose that for every $a \in R$, $a eq 0$, we have $aR = R$.
Prove ... | 4 | [
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umber
1 Real numbers
1.1 Rational numbers
In OpenLearn unit M208_5 Mathematical language you met the sets
= {1, 2, 3, …}, the natural numbers;
= {…, −2, −1, 0, 1, 2, …}, the integers;
= {p/q : p, q}, the rational numbers.
is the set of numbers that can be written as fractions, such as and –1.7 = .
Noti... | 4 | [
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Reverse Recovery Time of Junction Diodes
The basic situation is shown in the figure in the backbone module which will be repeated here in a somewhat more detailed fashion.
We switch from a forward condition to a reverse condition at some time. The external voltage (blue lines in the diagram) is supposed to change sud... | 4 | [
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Proof by mathematical Induction
April 20th 2009, 06:08 AM #1
Newbie
Joined
Apr 2009
Posts
2
Proof by mathematical Induction
Hello, I need some help with a proof by mathematical induction. Any help as soon as possible is appreciated
The equation is:
n
Σ k!.k = (n+1)! - 1
k=1
Now, h... | 4 | [
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Problem on finding values
November 30th 2008, 03:01 PM #1
Newbie
Joined
Nov 2008
Posts
10
Problem on finding values
I'm having trouble with doing this problem, and I'm not really sure how to even first go about it. All I was able to figure out is that $d=1$. If someone could explain this problem to me st... | 4 | [
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Posts about Gradient expansion on The Gauge Connection
Ashtekar and the BKL conjecture
18/02/2011
Abhay Ashtekar is a well-known Indian physicist working at Pennsylvania State University. He has produced a fundamental paper in general relativity that has been the cornerstone of all the field of
research of loop quan... | 4 | [
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Seek Time
I offered to post a "short course" on hard drive seek times, and here it is. There's some historical information that may help some of you to understand what I'll be talking about.
I'll get a little bit technical, but there isn't any math more complicated than elementary algebra. I'll state various versions... | 5 | [
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... | 3,110 | 3110 | |
EFFECT and NOMINAL: Finding nominal and effective interest rates from the Course Excel 2010: Financial Functions in Depth
New Feature: Playlist Center! Pick a topic and let our playlists guide the way—like a learning mixtape.
Start learning with our library of video tutorials taught by experts. Get started
In this c... | 5 | [
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Convergence Rates for Single Hidden Layer Feedforward Networks
Daniel F. McCaffrey, A. Ronald Gallant
Neural Networks, Vol. 7, No. 1, pp. 147--158.
Abstract
By allowing the training set to become arbitrarily large, appropriately trained and configured single hidden layer feedforward networks converge in pro... | 4 | [
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Linear Algebra 1 : Fields - The Complex Field
July 23rd 2009, 08:13 AM #1
Member
Joined
Jul 2009
Posts
168
Linear Algebra 1 : Fields - The Complex Field
I've just started studying about a week ago, I am extremely motivated and would do anything to succeed. Please - be as kind and tolerant as possible.
... | 4 | [
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real analysis one sided limits
October 2nd 2012, 02:10 PM #1
Newbie
Joined
Oct 2012
From
new orleans
Posts
5
real analysis one sided limits
hey guys. so im in an introductory real analysis course and I am finding it quite challenging, partially because my teacher isnt great. i went to ask for help on... | 4 | [
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Math Skill: Graphs to Linear Inequalities
Graphs to Linear Inequalities
For this topic, you need to know how to find the equation of a line.
To review the Graphs to Linear Equations topic, see here.
In this topic, you will find th... | 4 | [
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Finding external Circumference of 2 overlapping circles
June 26th 2011, 08:09 AM
castle
Finding external Circumference of 2 overlapping circles
I marked the top of the intersection (where the 2 circles meet) "a" and the bottom "b". Then I made a triangle with the midpoint of AB and the centre of the larger circl... | 4 | [
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0.00735473632... | 3,116 | 3116 | |
Conditional probability problem
September 16th 2010, 04:42 AM #1
Member
Joined
Sep 2008
Posts
79
Conditional probability problem
An insurance company believes that drivers can be divided into two classes, high-risk and low-risk. According to past data, a high-risk driver has an accident with probability ... | 4 | [
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Homework Help
Posted by HENRY! on Wednesday, December 5, 2012 at 2:10pm.
Suppose you throw a stone straight up with an initial velocity of 27.0 m/s and, 5.5 s later you throw a second stone straight up with the same initial velocity. The first stone going down will meet
the second stone going up. At what height above ... | 4 | [
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cylinder n sphere
August 10th 2010, 06:15 AM
furor celtica
cylinder n sphere
a circular cylinder is to fit inside a sphere of radius 10cm. calculate the maximum possible volume of the cylinder. (it is probably best to take as your indpendent variable the height or half
the height of the cylinder).
i'm st... | 4 | [
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0.050292... | 3,119 | 3119 | |
gas equation differenciate
April 24th 2008, 07:09 PM #1
Newbie
Joined
Oct 2007
Posts
9
gas equation differenciate
I have no idea to how I should proceed
Dieterici's equation of state for gas is
$P(V-b)e^{\frac{a}{RVT}} = RT$
Where a, b, and R are constants. Regard volume V as a function of... | 4 | [
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K-1 THE ACCELERATION DUE TO GRAVITY
Instructor's notes.
[This experiment was previously numbered M-5.]
This is the standard free-fall experiment using the Behr apparatus.
One set-up of the apparatus is sufficient for a class of usual size. The instructor should explain the apparatus and operate it once to obtain a... | 5 | [
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Proposition 75
If from a medial straight line there is subtracted a medial straight line which is commensurable with the whole in square only, and which contains with the whole a medial rectangle, then the
remainder is irrational; let it be called second apotome of a medial straight line.
From the medial straight lin... | 5 | [
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0.025... | 3,122 | 3122 | |
quadgk as function handle
It doesn't have anything to do with QUADGK. You need to sort out which
variables are the independent variables in the call. The first argument of
QUADGK is a function handle for a function of one independent variable. If
you define
Fy = @(z)quadgk(firm_1_pdf(z),...)
Then the first input argu... | 4 | [
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mass-energy
MASS AND ENERGY. topics
As seen, when nuclei are changed, vast amounts of energy are involved through the Strong Interaction. Typically, a nuclear transformation is one million times more energetic than a chemical change -
hence the shear devastation a nuclear bomb can create.
"hydrogen bomb" of about 10 ... | 4 | [
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Arch Length :)
September 23rd 2010, 06:04 AM
CHARLIEDANCE
Arch Length :)
Attachment 19021
Hey guys I don't know if this would work but lets hope for the best. Okay i was given the follow properties of a function. The challenge was to find the formula of 2 continuous functions satisfy
all three of the p... | 5 | [
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-0.... | 3,125 | 3125 | |
Green's Function for first order Linear ODE
Hi there,
I've been completing a problem of a question based on ODE and Green's Functions. The question asks me to come up with a general solution for the IVP ODE $L[y] = y\prime + y\cdot sin(t)=\delta(t -
\tau), y(0) = 0$ by imposing a jump condition on $y(t)$ at... | 5 | [
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0.08544921875,
-0.043212890... | 3,126 | 3126 | |
[SOLVED] Diff Eq's population model **MIDTERM TOMORROW**
February 24th 2009, 11:22 PM #1
Newbie
Joined
Feb 2009
From
Bay Area, CA
Posts
6
[SOLVED] Diff Eq's population model **MIDTERM TOMORROW**
Hello,
Thanks for reading this... I've got my midterm tomorrow and I just want to make sure I know eve... | 5 | [
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Flow Lines/Curl Question?
December 1st 2010, 08:27 PM #1
Newbie
Joined
Nov 2010
Posts
24
Flow Lines/Curl Question?
The curl of the gradient of a twice continuously differentiable function R3 -> R is identically zero.
Prove this by direct computation of the required mixed partial derivatives.
Las... | 4 | [
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0.0159912109375,
-0.055908203125,
0.02880859375,
0.014404296875,
-0.002197265625,
0.017578125,
0.03271484375,
-0.1337890625... | 3,128 | 3128 | |
Rolle's theorem
Well, what are the hypothsis of Rolle's Theorem. f is cont on [0,2] and differentiable on (0,2). Lastly $f(0)=\sqrt{2(0)-0^2}=0,f(2)=\sqrt{2(2)-(2)^2}=0$ So there exits a $c \in (0,2)$ such that $f'
(c)=0$ taking the derivative we get $\frac{df}{dx}=\frac{1}{2}\cdot \frac{2-2x}{\sqrt{2x-x^2}}=\frac{1-x}... | 5 | [
0.042724609375,
-0.0263671875,
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0.036376953125,
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0.02490234375,
0.08056640625,
0.032470703125,
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-0.0025634765625,
0.004547119140625,
-0.0279541015625,
-0.003021240234375,
-0.06005859375,
-0.0... | 3,129 | 3129 | |
Furstenberg's topological proof of the infinitude of primes
Posted by: Dave Richeson | September 8, 2010
Furstenberg’s topological proof of the infinitude of primes
I just returned from a 10-day trip to India. It was my first visit there. I gave a talk at the ICM Satellite Conference: Various Aspects of Dynamical Sys... | 5 | [
-0.042236328125,
0.021240234375,
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0.09423828125,
-0.00860595703125,
0.00103759765625,
-0.0849609375,
0.0037689208984375,
0.0155029296875,
-0.0206298828125,
0.0157470703125,
0.00537109375,
0.002777099609... | 3,130 | 3130 | |
retract in a topological space
March 23rd 2009, 04:46 PM #1
Member
Joined
Feb 2009
Posts
98
retract in a topological space
If X is a topological space, what would be an example of a retract of X which is not closed?
I know that if X is Hausdorff, every retract of X must be closed. So I think we need... | 5 | [
-0.0098876953125,
-0.0123291015625,
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0.03125,
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0.0859375,
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0.0108642578125,
0.01025390625,
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0.00982666015625,
0.0250244140625,
-0.00051116943359375,
-0.039306640625,
0.0035400390... | 3,131 | 3131 | |
Computational Black Body Radiation
Here is a another argument indicating that the effect of the atmospheric trace gas CO2 on the radiation balance of the Earth is small.
Our model of blackbody radiation consists of collection of oscillators with small damping with equal oscillator internal energy T representing temper... | 4 | [
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0.045654296875,
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0.05419921875,
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0.08203125,
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0.134765625,
-0.029052734375,
-0... | 3,132 | 3132 | |
PRODUCT Function
Description
The PRODUCT function returns the product of elements of an array expression, along a given dimension, or under the control of a logical mask.
Syntax
PRODUCT (array [, dim] [, mask])
Required Arguments
array is an INTENT(IN) array of type INTEGER, REAL or COMPLEX.
Optional Argumen... | 4 | [
0.04345703125,
-0.007476806640625,
-0.0693359375,
-0.060302734375,
-0.0201416015625,
0.004791259765625,
0.1005859375,
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0.01068115234375,
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0.00921630859375,
0.036865234375,
0.04541015625,
0.0220947265625,
0.08056640625,
-0.0169677734375,
... | 3,133 | 3133 | |
Akhmim Wooden Tablet
INTRODUCTION
-----------------------
The Akhmim Wooden Tablet may date to 2,000 BCE, 12th dynasty, or as late as 15th dynasty. The tablet is housed in the Cairo, Egypt Museum. It is 46.5 x 26n cm in size and mentions 27 servant names,
an unknown king's name (citing the 8th year of his reign), fiv... | 5 | [
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0.1083984375,
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0.04296875,
0.0208740234375,
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0.0198974609375,
0.00372314453125,
-0.0712890625,
-0.099609375,
-0.06640625,
0.06884765625,
... | 3,134 | 3134 | |
Mat 222 Week 1 Assignment by Grapesofwrath75
MAT 222: Intermediate Algebra
Title Page
Solving a proportion as we learned this week, means that you are missing an import number in your equation or fraction, and you need to solve for that missing value. As in my example, I did not know
what percentage of bills we each ... | 4 | [
0.03515625,
0.09228515625,
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0.0810546875,
0.0595703125,
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0.033935546875,
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-0.018310546875,
0.03564453125,
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-0.0439453125,
-0... | 3,135 | 3135 | |
Divisible by 49
Can someone show me the proof by mathematical induction that $n^2+n+2$ isn't divisible by 49 for every n (natural number).
OReilly You can greatly simplify your problem to reducing it to showing that $7ot |n^2+n+2$
ThePerfectHacker But it can be divisible by 7. For example for n=3.
OReilly I know, bu... | 5 | [
-0.04736328125,
0.10595703125,
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0.03979... | 3,136 | 3136 | |
Optimization!
March 28th 2008, 11:45 AM #1
Member
Joined
Nov 2007
Posts
112
Optimization!
When you cough, your windpipe contracts. The speed, v, with which air comes out depends on the radius, r, of your windpipe. If R is the normal (rest) radius of your windpipe, then for r ≤ R, the
speed is given b... | 4 | [
0.06005859375,
0.07958984375,
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-0.02490234375,
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0.0634765625,
-0.027587890625,
0.058349609375,
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0.07177734375,
0.0291748046875,
0.1025390625,
0.00750732421875,
0.08984375,
-0.020263671875,
0.03857421875... | 3,137 | 3137 | |
Appendi
Kansas Geological Survey, Ground Water Series 7, originally published in 1982
Prev Page--Start of Report || Next Page--Data Listings
Appendix A--Structural Analysis
... | 4 | [
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0.05029296875,
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-0.028564453125,
-0.0947265625,
-0.0186767578125,
0.0225830078125,
-0.0634765625,
-0.034423828125,
-0.08642578125,
-... | 3,138 | 3138 | |
Figuring out limits of integration when doing joint densities
January 18th 2011, 01:37 PM
crabchef
Figuring out limits of integration when doing joint densities
The problem in question:
f(x,y)=24xy for 0<= x<=1, 0<=y<=1, 0<=x+y<=1, otherwise x=0
The goal is to show that f(x,y) is a joint probability fx... | 4 | [
0.046875,
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-0.052978515625,
0.055419921875,
0.058837890625,
0.0849609375,
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-0.023193359375,
-0.0093994140625,
... | 3,139 | 3139 | |
horizontal asymptotes
February 8th 2009, 04:33 PM #1
Member
Joined
Feb 2009
Posts
91
horizontal asymptotes
Hi again
f(x) = (√(x^2+1)/(x-2))
I think the vertical asymptote is 2 but what is the horizontal asymptote?
How do you figure this out?
Thanks in advance
this calculus beginne... | 4 | [
-0.0240478515625,
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0.0205078125,
0.057373046875,
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0.078125,
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0.035400390625,
0.0030059814453125,
-0.07617187... | 3,140 | 3140 | |
Probability.
February 1st 2010, 11:35 AM #1
Newbie
Joined
Feb 2010
Posts
6
Probability.
Fifteen telephones have just been received at an authorized service center. Five are cellular, five are cordless, and five a conventional corded phones. If phones are randomly selected for
service what is the prob... | 4 | [
-0.0703125,
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0.052734375,
0.078125,
-0.0147705078125,
-0.00543212890625,
-0.005615234375,
-0.11328125,
... | 3,141 | 3141 | |
Fermat's Last Theorem/Appendix
From Wikibooks, open books for an open world
This appendix collects some proofs and studies in depth some mathematical concepts that can be interesting in order to examine in depth some aspects of the book. It seeks to maintain a simple
approach but the proofs being correct, in some case... | 5 | [
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0.08251953125,
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0.072265625,
-0.050048828125,
-0.024658203125,
-0.07177734375,
0.0512... | 3,142 | 3142 | |
Position vectors
September 26th 2008, 03:58 AM
Carl Feltham
Position vectors
urgent help, A Level Maths Mechanics
A particle has position vector 2i + j initially and is moving with speed 10ms^-1 in the direction 3i - 4j. Find its position vector when t = 3.
September 26th 2008, 04:41 AM
mr fantastic
... | 5 | [
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0.031982421875,
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0.007171630859375,
0.1103515625,
-0.0595703125,
0.001678466796875,
-0.00592041015625,
-0.057373046875,
-0.00927734375,
-0.0498046875,
... | 3,143 | 3143 | |
[Maxima] problem with dpart
Barton Willis willisb at unk.edu
Thu May 17 07:38:50 CDT 2007
-----maxima-bounces at math.utexas.edu wrote: -----
>To: maxima at math.utexas.edu
>From: Andreas Eder <aeder at arcor.de>
>Sent by: maxima-bounces at math.utexas.edu
>Date: 05/17/2007 03:53AM
>Subject: [Maxima] problem with dp... | 4 | [
-0.1162109375,
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0.0625,
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-0.018310546875,
0.02... | 3,144 | 3144 | |
DOCUMENTA MATHEMATICA, Vol. 10 (2005), 131-198
DOCUMENTA MATHEMATICA
, Vol. 10 (2005), 131-198
Ambrus Pál
On the Torsion of the Mordell-Weil G... | 4 | [
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0.0152587890625,
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0.005706787109375,
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0.03759... | 3,145 | 3145 | |
Homework Help
Posted by dat on Sunday, May 8, 2011 at 11:56am.
In a right triangle the hypotenuse has length 10 and the the sum of the cotangents of
all three angles of the triangle equals 2. What are the lengths of the other two sides
of the triangle?
(A) 5 and 5p3
(B) 5p2 and 5p2
(C) 1 and3
p11 (D) 4 and 2p21
... | 4 | [
-0.06689453125,
0.140625,
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0.07421875,
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0.051025390625,
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0.051025390625,
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0.0142822265625,
0.05224609375,
-0.018310546875,
-0.0693359375,
0.0159912109375,
... | 3,146 | 3146 | |
Re: st: correct confidence intervals of -mean- ?
Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index... | 5 | [
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0.0223388671875,
0.0771484375,
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0.029541015625,
-0.068359... | 3,147 | 3147 | |
Sum of integers cubed
Go to Fun_Math Content Table Sums of Integers and Series
Sum of integers cubed
List of animations posted on this page.(Click the text to watch animation.)
Sum of cube - 1
Sum of cube - 2
Fibonacci's elegant proof
(Ref. 2, 4)
Sum of odd integers,starting with 1, gives the square as shown in the... | 5 | [
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-0.034423828125,
-0.01531982... | 3,148 | 3148 | |
Solve x^.5 = 6 - x
May 30th 2010, 08:15 PM #1
Member
Joined
Nov 2009
Posts
76
Solve x^.5 = 6 - x
What I have done is squared both sides which gives
x=(6-x)^2 =
0 = x^2-13x+36
0=(x-4)(x-9). x=4,x=9. Of these x=4 fits the original function.
Is there a better way of doing this??
$\sqrt... | 4 | [
0.0159912109375,
-0.019775390625,
-0.01324462890625,
0.029296875,
-0.0135498046875,
0.07177734375,
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0.017578125,
-0.01513671875,
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0.072265625,
0.00421142578125,
-0.01025390625,
-0.0203857421875,
0.017578125,
0.0439453125,
-0.057373046875,
0.049560546875... | 3,149 | 3149 | |
show that arctanx = arcsin(x/sqrt (1+x^2)
March 25th 2009, 02:23 AM
b0mb3rz
show that arctanx = arcsin(x/sqrt (1+x^2)
also prove that
arccosx = 2arccos sqrt ( (x+1)/2 )
for the first one i let the LHS be y but didnt know where to go next
for the second one i cosined both sides but am still unsure
... | 4 | [
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0.06591796875,
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-0.0303955078125,
0.068359375,
-0.03955078125,
0.042724609375,
0.0306396484375... | 3,150 | 3150 | |
Differential Equation Problem 2
September 24th 2009, 05:45 PM #1
Differential Equation Problem 2
Once again a friend has a diff-e-q problem that he needs help with:
A woman bails out of an airplane at an altitude of 10,000 ft, falls freely for 20 s, then opens her parachute. How long will it take her to reac... | 5 | [
-0.058837890625,
0.0517578125,
0.04248046875,
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0.060791015625,
0.08203125,
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0.08544921875,
-0.0537109375,
0.042724609375,
0.146484375,
-0.035888671875,
0.0113525390625,
0.09375,
-0.10498046875,
0.11328125,
-0.0234375,
-0.06884765625,
-0.07958984375,... | 3,151 | 3151 | |
Integer solutions to a^2+b^2=c^3
June 11th 2009, 06:20 AM #1
Newbie
Joined
Jun 2008
Posts
5
Integer solutions to a^2+b^2=c^3
a^2+b^2=c^3, a,b,c are positive integers, and b>=a.
Just by inspection, a=b=c=2 is one set of solution.
Also, a=26, b=18, c=10; a=1358, b=594, c=130; are two other sets o... | 4 | [
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0.054443359375,
-0.031005859375,
-... | 3,152 | 3152 | |
Relative Velocity
September 3rd 2011, 08:29 PM #1
Newbie
Joined
Sep 2011
Posts
5
To a cyclist riding on bearing 090 True bearing at 25 km/h the wind appears to blow a t 20 km/h towards 305 T.
What is the true speed and direction of the wind? (Answer is 14.347 km/h, 028 True bearing)
I don't know ... | 4 | [
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0.06689453125,
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0.0279... | 3,153 | 3153 | |
Heating Wire
Resistance Wire Guides
»
Heating Wire
Heating Wire
Resistance heating wire is used in a variety of applications for generating heat. Household use can be found in toasters, portable space heaters, warming plates and more. Stove burners are an example
of an electrical element used to create heat. Indu... | 4 | [
-0.06298828125,
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0.0113525390625,
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0.006072998046875,
-0.0205078125,
0.01519775390625,
-0.059814453125,
-0.0093383789062... | 3,154 | 3154 | |
HELP!!! Circle problem
September 11th 2008, 05:22 PM #1
Junior Member
Joined
Sep 2008
Posts
61
HELP!!! Circle problem
This is the problem:
Quinn is running aruond the circular track x^2 + y^2 = 10,000, whose radius is 100 meters, at 4 meters per second. Quinn starts at the point (100,0) and runs in ... | 4 | [
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0.001213073730468... | 3,155 | 3155 | |
Math Help
March 20th 2009, 03:14 AM #1
Junior Member
Joined
Mar 2009
Posts
34
average
In class P, there are 20 students and in class Q there are 28 students. Both classes sit for the same test. Th average of the student in class was 60% and the average of the students in class Q
was 70%. It was deci... | 4 | [
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0.087890625,
0.0439453125,
0.0067138671875,
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0.033935546875,
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0.1103515625,
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0.052490234375,
-0.0281982421875,
0.10205078125,
-0.0052490234375,
-0.00933837890625,
0.0235595703125,
-0.08447265625,
-0.0013... | 3,156 | 3156 | |
Taylor Series Problem
October 25th 2012, 04:00 PM #1
Junior Member
Joined
Aug 2012
From
Texas
Posts
48
Taylor Series Problem
Use the formula for a taylor series of a function f at c to compute the first 3 non-sero terms and the general term of the Taylor series for f(x)=sin2x at c=pi/4. Then write th... | 5 | [
0.00885009765625,
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0.0625,
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0.04150390625,
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-0.01300048828125,
-0.0172119140... | 3,157 | 3157 | |
The push-relabel algorithm
From Cophy
Preliminaries
Let G = (V,E) be a directed graph with a source s ∈ V and a sink t ∈ V, s ≠ t. Let n = | V | be the number of nodes and m = | E | be the number of edges. Let $c:\ E\ \rightarrow\ \mathbb{R_+}$ be a
capacity function that assigns nonnegative weights to the edges of... | 5 | [
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SLAC Controls Software -- hard: Chapter 56
56.1 THEORY OF OPERATION . . . . . . . . . . . . . . 56-1
56.2 CALCULATIONAL METHODS . . . . . . . . . . . . . 56-2
56.2.1 Thermistor Temperature . . . . . . . . . . . . 56-2
56.2.2 Therm... | 4 | [
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Smaller decoding exponents: ball-collision decoding
D. J. Bernstein
Error-correcting codes
Smaller decoding exponents: ball-collision decoding
[ballcoll] 26pp. (PDF) Daniel J. Bernstein, Tanja Lange, Christiane Peters. Smaller decoding exponents: ball-collision decoding. Document ID: 0e8c929565e20cf63e6a19794e570bb1.... | 4 | [
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... | 3,160 | 3160 | |
Math Help
May 3rd 2008, 09:58 PM #1
Member
Joined
Mar 2008
Posts
91
NullSpace
Let S be the subspace of R4 given by the solution set of the equations
-x3 + 4 x4 = -x2 - x3 + x4 and -x1 - x3 = -x1 - 3 x3 = x2
An example of a matrix for which S is the nullspace is....
i tried doing 1 1 0 0
... | 4 | [
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0.0260009765625,
-0.03955078125,
-0.03295898... | 3,161 | 3161 | |
[SOLVED] A differential equation
July 20th 2008, 08:13 PM #1
[SOLVED] A differential equation
I must do something wrong. I have to solve $f'(t)=t^2f^2(t)$ with the initial condition $f(0)=\frac{1}{2}$.
So I wrote $\frac{df}{dt}=t^2f^2(t) \Leftrightarrow \frac{df}{f^2(t)}=t^2dt \Leftrightarrow \int \frac{df}{f... | 5 | [
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0.044677734375,
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-0.0380859375,
-0.0230712890... | 3,162 | 3162 | |
Spherical
telescopeѲptics.net ▪ ▪ ▪ ▪ ▪▪▪▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ CONTENTS
4. INTRINSIC TELESCOPE ABERRATIONS
As mentioned, these are the aberrations caused by the inhere... | 4 | [
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-0.0... | 3,163 | 3163 | |
trignometry confusion
October 17th 2010, 05:10 AM #1
trignometry confusion
1]the equation $1-\cos^ x + \sinx\cosx = k$ then there exists real solution when k belongs to
A) $0<k<\frac{1+\sqrt2}{2}$
B) $2-\sqrt3 < k 2+\sqrt3$
C) $0<k<2-\sqrt3$
D) $\frac{1-\sqrt2}{2} < k < \frac{1+\sqrt2}{2}$
2... | 4 | [
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Re: st: Interpretation of regressionmodel of ln-transformed variable
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Interpretation of regressionmodel of ln-transformed variable
From Maarten buis <maartenbuis@yahoo.co.uk>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Int... | 5 | [
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Optimization Problem !
September 3rd 2007, 09:28 PM #1
Newbie
Joined
Jul 2007
Posts
19
Suppose the revenue (in thousands) for sales of x hundred units of an electronic item is given by the function R(x) = 40x^2e^-0.4x + 30, where the max capacity of the plant is eight hundred.
Determine number of unit... | 4 | [
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-0.03271484... | 3,166 | 3166 | |
how to solve 3/8x-1/3x+6=1/6x
Word Problem Answers (8,113)
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Calculus Answers (5,185)
Trigonometry Answers (2,300)
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Algebra 1 Answers (22,549)
Pre-Algebra Answers (11,115)
(3 / 8x) - (1 / (3x + 6)) = 1 / (6x)
Note that x cannot be 0 or -2, or ... | 4 | [
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... | 3,167 | 3167 | |
Help with Simlatineous Equation
August 6th 2005, 05:05 AM #1
Newbie
Joined
Aug 2005
Posts
6
Help with Simlatineous Equation
I know this one should be easy, but i have never been able to get my head round algebra at all.
Simlatanues equation.
3x+4y=18
4x=2+2y
Ive anyone could show me ho... | 4 | [
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0... | 3,168 | 3168 | |
linear programming
September 10th 2008, 07:01 AM
particlejohn
linear programming
A logging firm gets logs from its supplier of $10'$ and $20'$ (and can get as many of each as he needs). The firm needs to produce logs of lengths $5'$, $7'$, and $9'$ and needs $1000$, $3000$,
and $2000$ of these lengths respec... | 4 | [
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0.125,
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Coprime Polynomials
January 2nd 2011, 12:20 AM #1
Newbie
Joined
Dec 2010
Posts
3
Coprime Polynomials
If $a(x)$ and $b(x)$ are coprime in $\mathbb{Z}_n[x]$ and $a(x) \mid f(x), b(x) \mid f(x)$ in $\mathbb{Z}_n[x]$, then is it true that $a(x)b(x) \mid f(x)$ in $\mathbb{Z}_n[x]$?
You have $ac+bd=1$ for... | 4 | [
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Trig Review - Clueless
August 4th 2008, 08:17 PM
DUKENUKEM
Trig Review - Clueless
Hello, i need help in refreshing of memory with these 4 different types of equations. It's been about a year since i've taken trig and school just started calculus class today and i am lost.
Here is 1 example of each section t... | 5 | [
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-0... | 3,171 | 3171 | |
Homework Help
Posted by Angel on Monday, December 3, 2012 at 5:48am.
In five years,Emma will be three years more than twice as old as her son. Five years ago,she was two years less than five times, as old as her son. How old Emma now?
• Math - Reiny, Monday, December 3, 2012 at 11:01am
Emma's present age ---- ... | 4 | [
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Volume of a Cone Lesson Plans & Worksheets | Lesson Planet
Volume of a Cone Teacher Resources
Find Volume of a Cone educational ideas and activities
Showing 1 - 20 of 84 resources
In this volume activity, students find the volume of five cones. Students are given two pieces of information for each cone. Solutions ... | 4 | [
0.038818359375,
0.024169921875,
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-0.005859375,
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0.0001506805419921875,
-0.08544921875,
0.072... | 3,173 | 3173 | |
set question
September 14th 2008, 06:34 AM #1
Member
Joined
Nov 2006
Posts
142
set question
A,B,C are sets with A union B = B intersection C. The question asks what do these operations imply about A and C. I let x be an element satisfying the equation and found that any element in A
must be in B and ... | 4 | [
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... | 3,174 | 3174 | |
Homework Help
Posted by Kelly on Thursday, September 5, 2013 at 2:55pm.
The region bounded by y=-x^2+14-45 and y=0 is rotated about the y-axis, find the volume.
• Calculus - Steve, Thursday, September 5, 2013 at 3:29pm
The region goes from x=5 to x=9, So,
using shells,
v = ∫[5,9] 2πrh dx
where r ... | 5 | [
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-0.063964843... | 3,175 | 3175 | |
Homework Help
Posted by Emily on Sunday, February 21, 2010 at 5:08pm.
In right triangle ABC, altitude CD is drawn to hypotenuse AB. If AD equals 4 and AC exceeds DB by 1, find DB.
It is from a worksheet about proportions in a right triangle.
• Math - Reiny, Sunday, February 21, 2010 at 5:48pm
I assume you mad... | 4 | [
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0.059814453125,
-0.034423828125,
-0.0... | 3,176 | 3176 | |
D. J. Bernstein
Authenticators and signatures
hash127
Frequently asked questions
How can I securely authenticate messages?
Say you have a message m = (m[0],m[1],...,m[l-1]) consisting of signed 32-bit integers, i.e., integers between -2^31 and 2^31-1.
Compute the authenticator t = (h_r(m)+k[n]) mod p where
• n ... | 4 | [
0.01007080078125,
0.058349609375,
-0.0869140625,
-0.0556640625,
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0.02490234375,
0.0289306640625,
0.0366... | 3,177 | 3177 | |
Propositions 27 and 28
Book I. Propositions 27 and 28
Problems
Back to Proposition 27.
1. In this figure:
1. a) Name the two pairs of alternate angles.
To see the answer, pass your mouse over the colored area.
To cover the answer again, click "Refresh" ("Reload").
Do the problem yourself first!
Angles AGH, GHD, ... | 4 | [
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-0.035888671875,
-0.08935546875,
-0.043... | 3,178 | 3178 | |
Vector Problem
October 9th 2008, 08:01 AM #1
Vector Problem
So I have this small problem. Two vectors A and B added together give the vector S. Show that S (which I'm assuming is the scalar of S) is equal to (A^2 + B^2 + 2AB Cos (theta) ) / 2 remembering
that S . S = S^2 and S= A+B. I'm really not sure how to... | 4 | [
-0.049072265625,
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0.057373046875,
0.03369140625,
-0.03076171875,
0.03955078125,
-0.03955078125,... | 3,179 | 3179 | |
I am Pi: Thoughts on the Ratio of the Circumference of a Circle to Its Diameter
Every year, the celebration of Pi Day (March 14 is 3.14) grows more ambitious. Math teachers love to dream up unique classroom activities to celebrate Pi for it endless opportunity to calculate
(3.14159265358989 and so on and so on.) Thi... | 5 | [
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0.0407714843... | 3,180 | 3180 | |
Konrad Voelkel
Saturday, October 30th, 2010 | Author: Konrad Voelkel
What is a flat module? How should I think of it?
To answer that question, I will provide some background, then define what a flat module is, clarify the definition by means of example and counter-example and finally show some nice and useful
propert... | 4 | [
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-0.07080078125,
0.046875... | 3,181 | 3181 | |
need pointers for my HW. Linear subspaces
January 28th 2013, 03:00 PM #1
Newbie
Joined
Jan 2013
From
Overland Park, KS
Posts
15
need pointers for my HW. Linear subspaces
Ok here's the deal. I'm returning to Math after a break and I need all the help I can get. I'm not looking for answers just hints/p... | 5 | [
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-0.04638671875,... | 3,182 | 3182 | |
Expected value of the MLE of a binomial distribution
September 24th 2009, 01:55 AM #1
Expected value of the MLE of a binomial distribution
Hi
I've this question:
X1,...,Xn it's a sample from a binomial distribution b(n,a). Find the maximum likelihood estimator of a and the expected value of the estimato... | 5 | [
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0.0242919921875,
-0.0869140625,
0.027099609375,
0.11376953125,
0.003936767578125,
-0.029... | 3,183 | 3183 | |
Need help with proving an identity!
April 24th 2008, 01:13 PM #1
Newbie
Joined
Apr 2008
Posts
9
Need help with proving an identity!
I need to verify this identity:
(tan x/(1 + cos x)) + (sin x/(1 - cos x)) = cot x + (sec s)(csc x)
I've tried it twice now, and on the left side I keep getting:
... | 4 | [
-0.0791015625,
0.08544921875,
0.04833984375,
0.08447265625,
0.03857421875,
0.02783203125,
0.0537109375,
-0.06298828125,
0.0380859375,
0.000896453857421875,
0.048828125,
-0.07763671875,
-0.0223388671875,
0.046142578125,
0.017333984375,
-0.0113525390625,
0.0517578125,
0.0693359375,
... | 3,184 | 3184 | |
st: RE: convergence of sample mean using gsample with weights
Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index]... | 5 | [
-0.134765625,
-0.042724609375,
0.05029296875,
0.0225830078125,
-0.0223388671875,
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0.050048828125,
-0.005950927734375,
-0.0091552734375,
-0.01507568359375,
0.01495361328125,
0.0216064453125,
-0.0966796875,
-0.0537109375,
-0.007232666015625,
-0.0208740234... | 3,185 | 3185 | |
Statistics of vectors
We turn now to the trickier problem of sets of measured vectors. We will consider the case in which all vectors are assumed to have a length of one, i.e., these are unit vectors. Unit vectors are
just “directions”. Paleomagnetic directional data are subject to a number of factors that lead to scat... | 4 | [
0.0341796875,
-0.032470703125,
0.10693359375,
0.00775146484375,
0.1103515625,
0.034423828125,
-0.00135040283203125,
-0.01507568359375,
0.062255859375,
0.0137939453125,
-0.0498046875,
0.0211181640625,
0.0771484375,
-0.0262451171875,
-0.04345703125,
-0.0732421875,
0.004180908203125,
... | 3,186 | 3186 | |
tions
Mahalanobis_distance
By Wikipedia
The Mahalanobis distance is a measure of the distance between a point P and a distribution D, introduced by P. C. Mahalanobis in 1936.^[1] It is a multi-dimensional generalization of the idea of
measuring how many standard deviations away P is from the mean of D. This distance ... | 4 | [
-0.05224609375,
-0.080078125,
-0.06005859375,
-0.0771484375,
-0.0654296875,
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0.01336669921875,
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0.1064453125,
0.00168609619140625,
0.0172119140625,
0.017333984375,
-0.10205078125,
-0.0247802734375,
0.078125,
0.0... | 3,187 | 3187 | |
rre
Magnetic force acting on a current-carrying conductor
If a magnetic force is exerted on a single charged particle when the particle moves through a magnetic field, it should not surprise you that a current-carrying wire also experiences a force when
placed in a magnetic field. This follows from the fact that the c... | 4 | [
-0.08154296875,
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-0.05419921875,
-0.05126953125,
... | 3,188 | 3188 | |
seqlogit
seqlogit: Stata module to fit a sequential logit model
Author: Maarten L. Buis
seqlogit fits a sequential logit model. This model is know under a variety of other names: sequential logit model (Tutz 1991),sequential response model (maddala 1983), continuation ratio logit
(Agresti 2002), model for nested dich... | 4 | [
-0.05615234375,
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0.01373291015625,
-0.0196533203125,
0.0107421875,
-0.00567626953125,
0.045166015... | 3,189 | 3189 | |
Active Contours Using a Constraint-Based Implicit Representation :: Institutional Repository
Active Contours Using a Constraint- Based Implicit Representation
Bryan S. Morse1, Weiming Liu1 , Terry S. Yoo2, Kalpathi Subramanian3
1Department of Computer Science, Brigham Young University
2Office of High Perf... | 4 | [
-0.054443359375,
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-0.00139617919921875,
-0.0458984375,
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0.0133056640625,
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0.0218505859375,
-0.005828857421875,
-0.01721... | 3,190 | 3190 | |
Finding the residue of the following function
April 22nd 2013, 09:47 AM
director
Finding the residue of the following function
Hi all, I have the following function $f(z) = \frac{1}{(z^2 + z + 1)^2}$ and I need to find the residue at the double pole $z = (-1)^{\frac{2}{3}}$. Any tips? I'm hoping to not have to u... | 4 | [
-0.05517578125,
-0.0113525390625,
-0.02685546875,
0.0322265625,
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-0.035400390625,
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0.021728515625,
0.03369140625,
0.05126953125,
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0.0146484375,
-0.0703125,
0.037109375,
-0.05126953125,
-0.040283203125,
0.06884765625,
-0.032470703125,
0.... | 3,191 | 3191 | |
CityU Institutional Repository: Edge-pancyclicity, path-embeddability, and t/k-diagnosability in interconnection networks
CityU Institutional Repository >
3_CityU Electronic Theses and Dissertations >
ETD - Dept. of Computer Science >
CS - Doctor of Philosophy >
Please use this identifier to cite or link to this item:... | 4 | [
-0.0108642578125,
-0.026123046875,
-0.022216796875,
-0.057373046875,
-0.0263671875,
-0.07080078125,
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-0.0264892578125,
-0.034423828125,
0.02978515625,
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0.08984375,
-0.0211181640625,
-0.0400390625,
0.023193359375,
0.049072265625,
-0.027... | 3,192 | 3192 | |
Homework Help
Posted by carla on Saturday, July 14, 2007 at 7:12am.
Find two consecutive positive integers such that the sum of their squares is 85.
n^2+(n+1)^2+2n = 85
n^2+n^2+2n+1=85
2n^2+2n=84
n^2+n=42
n^2+n-42=0
(n-6)(n+7)=0
n=6
n=-7
Is my work and answer correct?
-7 is not a positive integer. Your first... | 4 | [
-0.07080078125,
0.087890625,
0.000782012939453125,
0.068359375,
-0.0017242431640625,
0.044921875,
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-0.046875,
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0.002960205078125,
-0.0203857421875,
-0.0240478515625,
-0.00927734375,
-0.04272460937... | 3,193 | 3193 | |
Trigonometry Lesson Plans & Worksheets | Lesson Planet
Trigonometry Teacher Resources
Find Trigonometry educational ideas and activities
Showing 1 - 20 of 1,024 resources
This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios ... | 4 | [
-0.0162353515625,
0.0751953125,
-0.037109375,
0.00860595703125,
-0.049560546875,
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0.0859375,
-0.0311279296875,
-0.0341796875,
0.043212890625,
... | 3,194 | 3194 | |
Homework Help
Posted by john on Tuesday, October 18, 2011 at 10:35pm.
Find the volume of the solid formed by rotating the region in the 1st quadrant enclosed by the curves y= x^(1/4) and y= x/64 about the y-axis.
• calculus - MathMate, Wednesday, October 19, 2011 at 6:41am
If you graph the two functions
y1... | 5 | [
0.048828125,
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0.006866455078125,
0.048828125,
-0.07421875,
-0.00634765625,... | 3,195 | 3195 | |
Uniqueness Proof
October 30th 2012, 10:33 AM #1
Junior Member
Joined
Oct 2012
From
Wisconsin
Posts
29
Thanks
1
Uniqueness Proof
Hello everyone I'm practicing proofs and would like to know if I'm on the right track. Here's the problem:
Show that if x is a nonzero rational number, then there i... | 4 | [
-0.07763671875,
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0.09814453125,
0.052978515625,
0.09423828125,
-0.0142822265625,
0.0233154296875,
0.... | 3,196 | 3196 | |
Homework Help
Posted by isha on Sunday, February 28, 2010 at 6:10pm.
find derivative of (8sqrt(x)+(9/2root3(x)))^2
• parentheses required - MathMate, Sunday, February 28, 2010 at 7:13pm
You have not supplied sufficient parentheses to render the expression unambiguous, that probably explains why you get differe... | 5 | [
-0.033203125,
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0.01611328125,
-0.09814453125,
0.0027313232421875,
0.0172119140625,
-0.00177764892578125,
-0.0042724609375,
-0.059326171... | 3,197 | 3197 | |
Regression fundamentals (linear, non linear, simple, multiple)
November 4th 2009, 08:03 PM #1
Newbie
Joined
Nov 2009
Posts
21
Regression fundamentals (linear, non linear, simple, multiple)
I am trying to understand the fundamentals of Regression. I did a lot of reading, still things are not clear to me d... | 4 | [
-0.0576171875,
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0.025634765625,
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0.02880859375,
-0.03515625,
-0.0217285... | 3,198 | 3198 | |
eek
April 16, 2010
This Week's Finds in Mathematical Physics (Week 295)
John Baez
This week I'll talk about the principle of least power, and Poincaré duality for electrical circuits, and a generalization of Hamiltonian mechanics that people have introduced for dissipative
systems. But first....
... | 5 | [
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