content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Innuo
The question is frequently raised as to why the theory and practice of machine learning are so divergent. Whereas if you glance at any article about classification, chances are that you will find
symbol upon lemma & equation upon inequality, making claims about the bounds on the error rates, that should putativel... | 4 | [
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Min polynomial
May 18th 2013, 01:33 PM #1
Member
Joined
Apr 2008
Posts
137
Thanks
4
Min polynomial
Hi,
I'm trying to find the minimal polynomial of the 12th primitive root of unity over $\mathbb{Q}$
Is there a best way of going about this?
Thanks,
Re: Min polynomial
I would start... | 5 | [
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Solving Minesweeper with Matrices
What is your motivation for writing this?
Note: skip to the next section if you don’t care about the back-story and want to get straight to the actual algorithm.
Back in 2008 I was starting Computer Science at UNSW. I was actually enrolled in the course that became those famous YouT... | 5 | [
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Help proving a subset is a subspace
April 16th 2009, 03:00 PM #1
Member
Joined
Mar 2008
Posts
78
Help proving a subset is a subspace
"Let V be a vector space, and let W1 and W2 be subspaces of V. Prove that (W1 ^ W2) is a subspace of V."
by ^ I mean the intersection of W1 and W2.
I'm not sure h... | 4 | [
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Given the equation 3x^2 - 12y^2 + 6x +48y - 93 = 0 determine:
a) The Center C
b) The 2 Vertices
c) The slopes... - Homework Help - eNotes.com
Given the equation 3x^2 - 12y^2 + 6x +48y - 93 = 0 determine:
a) The Center C
b) The 2 Vertices
c) The slopes of the asymptotes (enter as a reduced fraction)
The given ... | 4 | [
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subobject
Context
Category theory
Concepts
Universal constructions
Theorems
Extensions
Applications
Subobjects
Definition
As classes of monomorphisms
A subobject of an object $c$ in a category $C$ is an isomorphism class of monomorphisms
$i: a \hookrightarrow c$
into $c$. (Two morphisms $i: a \to c$, $j: b ... | 4 | [
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last week's MGRE Math Beast Challenge
I was indeed correct in answering (A) to
last week's MGRE Math Beast Challenge
. Here's MGRE's official explanation, in two parts: non-algebraic and algebraic. Neither explanation seems to rely on similar triangles, strangely enough.
NB: I have changed all subscript notation to ... | 4 | [
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E.W. Dijkstra Archive: The marriage agency (EWD1214)
The marriage agency
A marriage agency has in its files 25 men and 25 women and aims at acquainting the men with the women by organising dinner evenings, each one involving 12 tables, seating 2 men and 2 women.
(Consequently, at each dinner evening, 1 man and 1 woman... | 4 | [
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CSCE 612 VLSI System Design
CSCE 212
Chapter 3: Arithmetic for Computers
Instructor: Jason D. Bakos
Lecture Outline
• Review of topics from 211
• Overflow
• Binary Multiplication
• Binary Division
• IEEE 754 Floating Point
•... | 5 | [
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Normal Subgroups
March 9th 2013, 11:23 AM
lovesmath
Normal Subgroups
Let D8={id,r,r^2,r^3,f,fr,fr^2,fr^3} be the dihedral group of order 8. Let N={id,fr}<=D8 and K={id,r^2,fr,fr^3}<=D8. Show that N is a normal subgroup of K, which is a normal subgroup of D8. Also,
show that N is not normal in D8. Help, pleas... | 4 | [
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Area of Surface of Revolution
February 7th 2010, 09:51 AM #1
Member
Joined
Mar 2009
From
Alberta
Posts
173
Area of Surface of Revolution
Hey, I have an area problem that looks like it should simplify, but the integral I have set up does not seem to be solvable with my current skill set. If anyone has... | 5 | [
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proof that a compact set in a Hausdorff space is closed
proof that a compact set in a Hausdorff space is closed
Let $X$ be a Hausdorff space, and $C\subseteq X$ a compact subset. We are to show that $C$ is closed. We will do so, by showing that the complement $U=X\setminus C$ is open. To prove that $U$ is
open, it su... | 5 | [
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Parallel In-Place Radix Sort Simplified
Victor Duvanenko is a long-time contributor to Dr. Dobb's. He can be contacted at vduvanenko1@gmail.com
So far, sequential and parallel implementations of In-Place MSD N-bit-Radix Sort algorithm have been presented in Part 3 and Part 9. Both of these algorithms are linear-time O... | 4 | [
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Find the limit as t approaches infinity of T(t).
April 4th 2010, 10:23 AM #1
Newbie
Joined
Apr 2010
Posts
5
Find the limit as t approaches infinity of T(t).
I have this problem and it seems pretty easy. I think I'm just overthinking it.
At time t = 0 minutes, the temperature of a cup of coffee is 18... | 5 | [
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Finding area between two bounded curves
December 5th 2012, 06:00 PM
PhizKid
Finding area between two bounded curves
1. The problem statement, all variables and given/known data
f(x) = (x^3) + (x^2) - (x)
g(x) = 20*sin(x^2)
2. Relevant equations
3. The attempt at a solution
I found the zeroe... | 5 | [
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The Math of the First Scala Assignment
Math and Scala with a Little Bit of Clojure
Martin Odersky is teaching Functional Programming Principles in Scala on Coursera and I attempted to complete this course, I completed the first assignment on recursion before the hard deadline which
was hard given my work schedule at t... | 5 | [
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Before we start modeling, see what you can figure out just by looking at the chart above. Would you say there was a change in behaviour during this time period?
How can we start to model this? Well, as we have conveniently already seen, a Poisson random variable is a very appropriate model for this type of count data... | 4 | [
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Calculus I level question, find the derivative?
October 19th 2008, 09:07 AM
akarouette
Calculus I level question, find the derivative?
Given: r(2)=4, s(2)=1, r'(2)=-1, s'(2)=3, s'(4)=3, find the derivatives or state what information you would need to find them for:
H'(2) if H(x)=r(x)s(x)
H'(2) if H(x)=sq... | 5 | [
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surd maths question :S
January 8th 2010, 09:35 AM #1
Newbie
Joined
Jan 2010
Posts
2
surd maths question :S
Hey, i've been doing a maths practice paper for revision but i've come across a question i don't understand. Can anyone help me??
Find the exact roots of the equation 2x(squared)+8x-5=0 giving ... | 4 | [
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Transitive shifts with multiple fully supported MMEs
up vote 5 down vote favorite
This is a sequel to my earlier question, where I asked for an example of a shift space that is mixing but not intrinsically ergodic -- that is, it has multiple measures of maximal entropy (MMEs).
Steve Huntsman's answer referred me to a ... | 5 | [
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Ring with three binary operations
up vote 11 down vote favorite
4
A rather precocious student studying abstract algebra with me asked the following question: Are there interesting rings where there are not just two but three binary operations along with some
appropriate distributivity properties?
ra.rings-and-algebra... | 4 | [
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Stepanov
You are currently browsing the tag archive for the ‘Stepanov’s method’ tag.
Let ${{\bf F}_q}$ be a finite field of order ${q = p^n}$, and let ${C}$ be an absolutely irreducible smooth projective curve defined over ${{\bf F}_q}$ (and hence over the algebraic closure ${k := \
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Improved Gage R&R Measurement
2014
MEASURE FOR MEASURE
Improved Gage R&R Measurement Studies
by Donald S. Ermer
Many manufacturers are using tools like statistical process control (SPC) and design of experiments (DoE) to monitor and improve product quality and process productivity. However, if the data
collected ar... | 4 | [
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Imaginary, quadratic
March 8th 2010, 01:10 PM #1
Member
Joined
Dec 2009
Posts
180
Imaginary, quadratic
Trying to solve this, not allowed to use polar form or Eulers.
$z^2-4z+4+2i=0$
Here is my work: $(z-2)^2 = -2i$
then I have to take the root of $-2i$ and that didnīt work very well.
I ... | 4 | [
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polynomial rings
February 27th 2009, 08:22 PM
dori1123
polynomial rings
Let $f(x)$ be a polynomial in $\mathbb{Z}[x]$. Prove that if $f(x)$ has a root $\alpha \in \mathbb{Z}$, then $f(x)$ has a linear factor in $\mathbb{Z}[x]$.
Suppose $f(x)$ has a root $\alpha \in \mathbb{Z}$, then $f(x)$ is reducible, and... | 4 | [
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Logs - Without calculator
January 16th 2009, 03:52 PM
Peleus
Logs - Without calculator
Hi all,
What's the best way to work out log's without a calculator / other aids?
The question is $\log_{8}\frac{1}{4}$ what is the answer.
I know the answer is $-\frac{2}{3}$ and I can work it out simply on a ca... | 4 | [
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write the general solution to the differential equation
D^2(D^2+16)y=0 ok so this is y=xC1 + C2sin 4x + C3cos 4x is this right?
I assume this is supposed to mean $\displaystyle \frac{d^4y}{dx^2} + 16\frac{d^2y}{dx^2} = 0$. If you make the substitution $\displaystyle Y = \frac{d^2y}{dx^2}$, then this DE becomes $\displ... | 5 | [
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0... | 44,226 | 44226 | |
Simplification of boolean algebra
January 10th 2009, 12:25 AM #1
Newbie
Joined
Jan 2009
Posts
3
Basic Identity
(A) x+0 = x
(B) x . 1 = x
Commutative Property
(A) x+y = y+x
(B) xy = yx
Distributive Property
(A) x (y+z) = xy + xz
(B) x+yz = (x+y) (x+z)
Basic Identi... | 4 | [
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0.06787109375,
0.027587890625,
0.033935546875,
0.1259765625,
-0.10546875,
0.100097... | 44,227 | 44227 | |
Separable extension
From Encyclopedia of Mathematics
2010 Mathematics Subject Classification: Primary: 12Fxx [MSN][ZBL]
A separable extension of a field $k$ is an extension $K/k$ such that for some natural number $n$ the fields $K$ and $k^{p^{-n}}$ are linearly disjoint over $k$ (see Linearly-disjoint extensions). A... | 4 | [
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0.06494140625,
-0.00433349609375,
0.0086669921875,
-0.046630859375,
-0.02... | 44,228 | 44228 | |
INFOSYS
Aptitude Questions
1. There is a merry-go-round race going on.One person says,"1/3 of those in front of me and 3/4 of those behind me, give the total number of children in the race". Then the number of children took part in the race? (repeated from previous papers) Ans : ... | 4 | [
-0.0031280517578125,
0.08203125,
-0.0038909912109375,
-0.031494140625,
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0.06640625,
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0.06396484375,
0.05419921875,
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0.021240234375,
-0.00970458984375,
0.00830078125,
0.04248046875,
-0.00799560546875,
-0.027... | 44,229 | 44229 | |
Matching An ADC To A Transformer
Analog signals are often digitized as quickly as possible in modern communications systems and test equipment in order to perform signal processing in the digital domain. But designing the
transformer frontend circuitry for an analog-to-digital converter (ADC) can be challenging, especi... | 4 | [
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0.0181884765625,
... | 44,230 | 44230 | |
Track runner coordinates problem
June 3rd 2014, 07:42 AM #1
Newbie
Joined
Apr 2014
From
Seattle
Posts
15
Track runner coordinates problem
Charlie and Alexandra are running around a circular track with radius 60 meters. Charlie started at the westernmost point of the track, and, at the same time, Alex... | 5 | [
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0... | 44,231 | 44231 | |
Precalculus
Overview
Main description
The Barnett, Ziegler, Byleen, and Sobecki College Algebra series is designed to be user friendly and to maximize student comprehension by emphasizing computational skills, ideas, and problem solving
as opposed to mathematical theory. Suitable for either one or two semester colleg... | 4 | [
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... | 44,232 | 44232 | |
Reduction Formula
March 22nd 2008, 04:03 PM #1
Super Member
Joined
Oct 2007
From
London / Cambridge
Posts
591
Reduction Formula
Given that $I_{n} = \int_{0}^{1}{x^n(1-x)^{\frac{1}{2}}dx}$ where $n \geq 0$, prove that for $n \geq 1$
$I_{n} = \frac{2n}{2n+3} I_{n-1}$
The first thing that come... | 5 | [
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0.01611328125,
-... | 44,233 | 44233 | |
LCM of Fractions
The Least Common Multiple (LCM) of two integers x and y, is the smallest positive integer that is a multiple of both x and y. Generally LCM is used for adding fractions where denominators are not
same. Most of the kids know how to calculate LCM, but I was surprised to learn that most of the kids are n... | 4 | [
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0.049072265625,
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-0.01177978515625,
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0.07128... | 44,234 | 44234 | |
THE STUDY OF NON-HERTZIAN CONCENTRATED CONTACTS
NATIONAL THE ANNALS OF UNIVERSITY 39
TRIBOLOGY “DUNĂREA DE JOS“ OF GALAŢI
... | 4 | [
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-0.0119... | 44,235 | 44235 | |
proving the existence of "e"
September 22nd 2010, 12:01 PM
sedam7
proving the existence of "e"
hello,
i don't know how to do proving the existence of e ....
okay, i know that it is by definition :
$\displaystyle e = \lim_{n\to \infty} (1+\frac {1}{n})^n$
or
$\displaystyle e = \sum_{n=0} ... | 5 | [
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-0.0009307861328... | 44,236 | 44236 | |
Calculation Device Calculating Available Capacity Of Secondary Battery And Method Of Calculating The Same - Patent 7200499
United States Patent: 7200499
( 1 of 1 )
United States Patent
7,200,499
Aridome
April 3, 2007
Calculation device calculatin... | 4 | [
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Modify MOSFET Models For Nonlinear Quantification
Using a unique table-based approach, it is possible to quantify nonlinear distortion in MOSFET device models where each of the transistors nonlinear parameters are independently represented.
Scaling silicon CMOS transistors to smaller and smaller dimensions has made th... | 4 | [
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0... | 44,238 | 44238 | |
Example
PDE8
From Example Problems
$u_{{t}}=k(\Delta u)+q(x,y,t)\,$ $u(x,0,t)=0\,$
$u(x,b,t)=0\,$
$u(0,y,t)=0\,$
$u(a,y,t)=0\,$
$u(x,y,0)=f(x,y)\,$
... | 4 | [
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-0.06005859375,
-0.126953... | 44,239 | 44239 | |
Multivariable Expressions Practice Questions
By
LearningExpress Editors
Updated on Oct 3, 2011
Review these concepts at Multivariable Expressions Study Guide.
Multivariable Expressions Practice Questions
Problems
Practice 1
Simplify each expression.
1. x + 5y – 3x
2. 2p – 9p^2 + 8r^2 + 2p^2
3. 7s – (4s + 2t... | 4 | [
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0.0390625,
0.0751953125,
0.0150146484375,
0.0966796875,
-0.11279296875,
0.03393554... | 44,240 | 44240 | |
Power-Saving Design Brings DDS Flexibility To Portables
Direct digital synthesis (DDS) has served a wide range of applications due to its fast frequency switching speed and modulation capabilities. But it has often been relegated to a secondary choice in
favor of analog phase-locked- loop (PLL) synthesis for cases wher... | 4 | [
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0.06884765625,
0.... | 44,241 | 44241 | |
Essential Discriminant Divisors
Next: Bibliography Up: Factoring Primes in Rings Previous: Method that Always Works
Definition 4.1 A prime essential discriminant divisor if every
Example 4.2
(Dedekind) Let
> K := NumberField(x^3 + x^2 - 2*x + 8);
> OK := MaximalOrder(K);
> Factorization(2*OK);
[
<Prime Ideal o... | 5 | [
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0.0515136... | 44,242 | 44242 | |
Prime Number Based Interleaver for Multiuser Iterative IDMA Systems
2010 International Conference on Computational Intelligence and Communication Systems
2010 International Conference on Computational Intelligence and Communication Networks
... | 4 | [
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-0.07275390625,... | 44,243 | 44243 | |
Grey-body radiation
The emission of photons by matter in thermal equilibrium is not a series of independent events. The textbook example is black-body radiation
[1]
: Consider a system in thermal equilibrium (temperature
$T$
) that fully absorbs any incident radiation in
$N$
propagating modes within a frequency i... | 4 | [
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-... | 44,244 | 44244 | |
Re: Help with a problem: non-convexifiability of a function
In article <1141715475.115592.190660@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
tsy@xxxxxxxxxxxx writes:
I need to prove that there is no increasing function f such that the
function f[sqrt(x+y^2)+y] (x,y>=0) is convex.
sounds much like homework.
hint: consi... | 4 | [
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-0.034423828125,
-0.08447265625,... | 44,245 | 44245 | |
Two Sides
Example: Use the two known side lengths of the right triangle below to find the angles of the triangle.
Remember : The function table can be used to find an angle when you know two side lengths of a right triangle.
Follow the steps below.
□ First: Mark the reference angle and name t... | 4 | [
-0.00946044921875,
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0.06689453125,
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0.0174560546875,
-0.123046875,
-... | 44,246 | 44246 | |
The Zeta Function
The zeta function, ζ(s) = Σ(1/k^s) = 1 + 1/2^s + 1/3^s + ..., is usually referred to as Riemann's, because he elucidated so many of its properties, but was already known to Euler. It is valuable in
the theory of prime numbers and analysis, and also as the value of certain integrals in modern physics.... | 4 | [
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-0.051025390625,
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0.01104736328125,
-0.05786132... | 44,247 | 44247 | |
Phase Property
Complex.Phase Property
Gets the phase of a complex number.
Namespace: System.Numerics Assembly: System.Numerics
(in System.Numerics.dll)
public double Phase { get; }
Property Value
Type:
System.DoubleThe phase of a complex number, in radians.
For a complex number a + bi, the phase is computed ... | 4 | [
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-0.07080078125,
0.02148437... | 44,248 | 44248 | |
Trig. Eqautions
May 4th 2006, 07:49 PM
CONFUSED_ONE
Trig. Eqautions
how would you simplify this trig. equation.
(1+sec2x)(cot2x)
*note: the blue 2's are squared.
i did it and the final answer i got is 2cot2x
May 4th 2006, 10:40 PM
TD!
There is nothing to solve. You either forgot something, ... | 4 | [
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0.07958984375... | 44,249 | 44249 | |
pullback
Context
Limits and colimits
1-Categorical
2-Categorical
(∞,1)-Categorical
Model-categorical
Equality and Equivalence
• equality (definitional, propositional, computational, judgemental, extensional, intensional, decidable)
• isomorphism, weak equivalence, homotopy equivalence, weak homotopy equival... | 4 | [
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-0.0751953125,
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-0.02783203125,
0.0037689208984375,
0.08203125,
0.06494140625,
0.04833984375,
0.... | 44,250 | 44250 | |
Standard Deviation and Conditional Probability
Date: 07/14/98 at 22:45:22
From: Angela C. Williams
Subject: Quantitive stats
I have a couple of questions:
Find the standard deviation of the following sample: 5.
My answer is the square root of five. Am I suppose to use some formula?
Also, here are data on 246 stoc... | 5 | [
0.007171630859375,
0.03955078125,
0.09033203125,
0.03173828125,
-0.0014495849609375,
0.0233154296875,
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0.03515625,
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-0.054443359375,
-0.021240234375,
-0.017822265625,
0.0257568359375,
0.01855... | 44,251 | 44251 | |
Ramp Angle and Acceleration
Name: Kyler
Status: student
Age: N/A
Location: N/A
Country: N/A
Date: N/A
Question: If you were to take a long ramp, about 30 feet long, angle it at a 45 degrees angle t... | 5 | [
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-0.034423828125,
0.0159912... | 44,252 | 44252 | |
Under (tire) PressureUnder (tire) Pressure
If you live on flat terrain like I do, you might not get a chance to experiment with your car coasting down hills in neutral. It’s kind of dangerous even if you can. But let’s say you’re on the top
of your driveway and beginning from a stop you coast down to the street below. ... | 4 | [
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0.0181884765625,
0.059326171875,
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0.08984375,
0.0224609375,
0.07958... | 44,253 | 44253 | |
Probability of same event happening in a row
June 4th 2008, 09:13 AM
jgillett
Probability of same event happening in a row
Hi, I've been wrecking my head all day with this and I can't figure it out. I'm guessing that it is obvious but I don't really have much of an education in probability.
What I want to k... | 5 | [
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-0.02880859375,
0.09130859375,
0.038330078125,
-0.039794921875,
-0.0089111328125,
0.0029754638671875,
-0.006256103515625,
0.06591796875,
-0.01904296875,
-0.100585... | 44,254 | 44254 | |
9.5.3 Value Iteration
Value iteration is a method of computing an optimal MDP policy and its value.
Value iteration starts at the "end" and then works backward, refining an estimate of either Q^* or V^*. There is really no end, so it uses an arbitrary end point. Let V[k] be the value function
assuming there are k sta... | 4 | [
-0.047607421875,
0.047607421875,
-0.06396484375,
-0.09765625,
-0.048583984375,
0.03857421875,
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0.015869140625,
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0.004180908203125,
-0.005340576171875,
0.0419921875,
-0.0380859375,
-0.02465820... | 44,255 | 44255 | |
Is this integral equation solvable? If so, how?
April 17th 2011, 11:24 AM
ivalmian
Is this integral equation solvable? If so, how?
Hello, I'm new to the forums (actually, just found you via google) and I have 2 questions (with the other I'll post in a separate thread a little later)!
My questions is this, c... | 5 | [
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0.09423828125,
0.0140380859375,
0.01116943359375,
-0.07080078125,
-0.0034484863... | 44,256 | 44256 | |
Magnitudes and distance
Apparent magnitude
apparent magnitudes, and are denoted by a lowercase m. The system is counterintuitive in that we naturally associate larger numbers with increasing brightness. The magnitude system uses the reverse
philosophy -- a first magnitude star is brighter than a sixth magnitude star.... | 5 | [
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-0.0791015625,
0.103515625,
-0.0289306640625,... | 44,257 | 44257 | |
spatial tensor product
nLab
spatial tensor product
Contents
Idea
There are several different concepts of tensor products for C-star algebras, because there are different norms one can put on the algebraic tensor product that turns it into a C-star algebra. The
spatial tensor product uses the smallest norm of all pos... | 4 | [
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322-2008 Zero-Inflated Poisson and Zero-Inflated Negative
SAS Global Forum 2008 SAS Presents
Pape... | 4 | [
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Hypothesis testing and
Hypothesis testing and statistical power
All power and sample size calculations depend on the nature of the null hypothesis and on the assumptions associated with the statistical test of the null hypothesis. This discussion illustrates the
core concepts by exploring the t-test on a single sampl... | 4 | [
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-0.01574707... | 44,260 | 44260 | |
Euler's Phi Function
σ(n)Φ(n)≥n^2(1-1/p1^2)(1-1/p2^2)...(1-1/pr^2) I can show that σ(n)Φ(n)≥n^2(1-1/p1)(1-1/p2)...(1-1/pr) but am unsure of how to do it with the pi^2.
I think it'd be a good idea if you defined what you use: what's that sigma function: the sum of all the divisors of the number n? And those p_i's are t... | 5 | [
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0.0235595703125,
0.0068... | 44,261 | 44261 | |
"Kummerian" fields?
up vote 9 down vote favorite
3
This is sort of a random, spur of the moment question, but here goes:
We define [with apologies to Conan the Barbarian] a field K to be $\textbf{Kummerian}$ if there exists an index set I, and functions $x: I \rightarrow K, n: I \rightarrow \mathbb{Z}^+$ such that th... | 4 | [
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-0.0556640625,
-0.044189453125,
0.07421875,
-0.05615234375,
0.034423828125,... | 44,262 | 44262 | |
Pythagorean theorem
Pythagorean theorem
Trigonometry
History
Usage
Functions
Generalized
Inverse functions
Further reading
Reference
Identities
Exact constants
Trigonometric tables
Laws and theorems
Law of sines
Law of cosines
Law of tangents
Law of cotangents
Pythagorean theorem
... | 4 | [
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0.0742187... | 44,263 | 44263 | |
3 of 10 samples are contaminated
August 14th 2006, 11:13 PM
Bartimaeus
3 of 10 samples are contaminated
3 of 10 samples are contaminated. 2 are randomly chosen. What is the probability of both of the chosen samples are contaminated?
Hope you can help.
Thanks.
EDIT:please include all working.
Augus... | 4 | [
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-0.02832031... | 44,264 | 44264 | |
Reynolds Number
An introduction and definition of the dimensionless Reynolds Number - with online calculators
The Reynolds Number, the non-dimensional velocity, can be defined as the ratio of
• the inertia force (ρ u L) and
• the viscous or friction force (μ)
and interpreted as the ratio of
• twice the dynami... | 5 | [
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... | 44,265 | 44265 | |
Simple proofs - need opinion/guidance
January 23rd 2010, 01:05 PM #1
Junior Member
Joined
Oct 2009
Posts
34
Simple proofs - need opinion/guidance
Good day to all. I apologize for the lengthy post, but I am seeking an opinion on some proofs we have been asked to construct as well as guidance for one that ... | 5 | [
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A question on cofinite topology.
up vote 0 down vote favorite
Let $X$ be a countably infinite (or larger) set with the cofinite topology. for every $x\in X$ is there exists a family $\xi\subset\tau$ such that $\lbrace x\rbrace=\bigcap\xi $ ? If the answer is
yes, then what is the cardinality of $\xi$ ?
gn.general-top... | 5 | [
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0.... | 44,267 | 44267 | |
Classifying Text with ID3 and C4.5
Lynn is a software architect with Novell. He can be reached at lmonson@novell.com.
E-mail programs that offer automatic mail sorting almost always fall prey to the same problem -- it's easier to manually sort your mail than figure out how to program the mail client to handle it for
y... | 4 | [
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0.0209960... | 44,268 | 44268 | |
What is the value of exponential e?
We know this value is varying between 2 and 3. But what is its actual value? - Homework Help - eNotes.com
What is the value of exponential e?
We know this value is varying between 2 and 3. But what is its actual value?
In mathematics, the constant e has a number of important proper... | 4 | [
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-0.0791... | 44,269 | 44269 | |
So tubular! Err... cubular
So tubular! Err… cubular
10 Dec
What I’m reading right now: Special Cube Complexes, a 2008 paper by Frederic Haglund and Dani Wise. Recently Ian Agol proved the Virtual Haken Conjecture , which was a Big Deal in math (this link is
LONG but a very well written non-math-person friendly summ... | 4 | [
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... | 44,270 | 44270 | |
Scientific Papers - Vi
476 THE LE CHATELIER-BRAUN PRINCIPLE [418
due to the weight at Q is less than it would be without the constraint by the potential energy of the difference of the deformations. And since the potential energy in either case is proportional to ... | 4 | [
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0.00257873535156... | 44,271 | 44271 | |
Finding Angles in Right Triangles Study Guide
By
Christopher Thomas
Updated on Oct 2, 2011
Finding Angles in Right Triangles
In this lesson, we explore a variety of word problems in which we must calculate the measure of an angle from a right triangle. With inverse trigonometric functions sin^–1, cos^–1, and tan^–... | 4 | [
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0.04492... | 44,272 | 44272 | |
Volume 11,
Volume 11, Issue 11, November 1970
•
View Description Hide Description
The transport of radiation in a turbulent, refracting medium is studied. It is shown that the conventional transportequation must be generalized. Path integrals are taken along curved ray
trajectories. When these ray pat... | 4 | [
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-0.10498046875,
-0.0541992... | 44,273 | 44273 | |
Visual Cryptography & Threshold Schemes
Doug is a professor of computer science at the University of Nebraska, Lincoln, and author of Cryptography Theory and Practice (CRC Press, 1995). He can be contacted at stinson@bibd.unl.edu.
Visual cryptography is a secret-sharing scheme that uses the human visual system to perf... | 4 | [
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-0.030639648437... | 44,274 | 44274 | |
Height of chimney stack using Angles of Elevation
April 29th 2011, 11:42 AM #1
Newbie
Joined
Apr 2011
Posts
4
Height of chimney stack using Angles of Elevation
Hello, can anyone help me out with this:
At a point А due south of a chimney staсk, the angle of elevation
of the staсk is 55 degrees. ... | 4 | [
0.00897216796875,
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0.0566406... | 44,275 | 44275 | |
Regression Analysis
CAPM Vs Fama French Model
Question1:
(a) The descriptive statistics of the three securities are shown in Table 1(detailed calculation results are
shown in Appendix):
Table 1
... | 5 | [
0.00396728515625,
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-0.0... | 44,276 | 44276 | |
hyper-envelope of a Lie algebra
Let $L$ be a finite dimensional Lie algebra over real or complex numbers with basis $\hat{x}_1,\ldots,\hat{x}_n$ and let $x_1,\ldots, x_n$ be the corresponding basis of the symmetric algebra $S(L)$
via the identity and $U(L)$ the universal enveloping algebra of $L$. Given any $y\in L\hoo... | 4 | [
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0.0002231597900390625,
0.0... | 44,277 | 44277 | |
Quantum Mechanics Worksheet with Answers - PDF
CH301 Fall 2009 Worksheet 2 Answer Key
1. Calculate wavelength from the following frequencies.
a) 625 kHz
λ = c/ν
λ = (3.00 E8 m/s)/(625 E3 Hz) = 480. m
b) 734 MHz
λ = (3.00 E8 m/s)/(734 E6 Hz) = .409 m
c) 8.4 E14 Hz... | 5 | [
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0.099609375,
0.0830078125,
0.0203857421875,
-0.1171875,
-0.08544921... | 44,278 | 44278 | |
Volume 20,
Volume 20, Issue 4, April 1979
•
View Description Hide Description
We show that the intensity of magnetizationI (z,x) where z=e ^−2βH and x=e ^−2βJ , for the ferromagneticIsing model in arbitrary dimension, reduces, for rational values of x, to a Diophantine
moment problem I (z) =∑^∞ [0] n ... | 4 | [
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0.0198974609375,
-0.05810546875,
-0.0400390625,
-0.015869140625,
-0.04565... | 44,279 | 44279 | |
GENERAL FLUID DYNAMICS
GOVERNING EQUATIONS OF FLUID
DYNAMICS
AND
AN AERODYNAMIC APPLICATION:
“COANDA EFFECT”
Student: Instructor: Dr. Charles Myles
Mihaela Maria Tanasescu Physics 5306, Fall 2004
... | 4 | [
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-0.0003261566162109375,
-0.0942382812... | 44,280 | 44280 | |
Are higher dimensional Heisenberg groups free nilpotent?
up vote 3 down vote favorite
3
I know that the Heisenberg group { x,y | [x,[x,y]]=[y,[x,y]]=1 } is free nilpotent; what about the higher dimensional ones? Do the higer dimensional Heisenberg groups have nice presentations? By
higher dimensional Heisenberg groups... | 4 | [
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0.001068115234375,
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0.009155273... | 44,281 | 44281 | |
Calculus Graphs Study Guide
By
Christopher Thomas
Updated on Oct 1, 2011
Calculus Graphs
A function can be fully described by showing what happens at each number in its domain (for example, 4→ 2) or by giving its formula (for example, f(x) = √x). However, neither of these provides a
clear overall picture of the fu... | 4 | [
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0.02001953125,
-0.022705078125,
-0.078125... | 44,282 | 44282 | |
mems sensor interface tutorial
This guide is intended to everyone interested in inertial MEMS (Micro-Electro-Mechanical Systems) sensors, in particular
Accelerometers and Gyroscopes as well as combination IMU devices (Inertial Measurement Unit).
Example IMU unit: Acc_Gyro_6DO... | 4 | [
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-0.0164794921875,
... | 44,283 | 44283 | |
HowStuffWorks "How many stars are in the Milky Way?"
How many stars are in the Milky Way?
We mentioned earlier that astronomers have estimated the number of stars in the Milky Way from measurements of the galaxy's mass. But how do you measure the mass of a galaxy? You obviously can't put
it on a scale. Instead, you us... | 4 | [
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0.009033203125,
... | 44,284 | 44284 | |
Fun with natural log
September 12th 2010, 04:31 PM #1
Newbie
Joined
Sep 2010
Posts
1
Fun with natural log
how do I turn this:
x = e^t and y = e^3t
into: y = x^3?
I tried this:
lnx = t, lny = 3t
lnx = lny/3
3lnx^3 = lny
e^x3 = e^y
Thanks!
You don't need logarith... | 4 | [
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0... | 44,285 | 44285 | |
Math 308 Project: The Shoemaker's Knife Problem - An Application of
Inversion
Robert Hunter
Math 308, Euclidean Geometry
Term Project, Fall 2003
The Shoemaker's Knife Problem - An Application of Inversion
Pappus of Alexandria (who wrote in the t... | 4 | [
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Weibull or Poisson?
March 4th 2012, 09:01 AM
James McNiven
Weibull or Poisson?
Exercise 3:
The lifetime of a roller bearing follows a lognormal distribution. The mean and standard
deviation of the corresponding normal distribution are 8 months and 2.5 months respectively.
b) Calculate the probabili... | 5 | [
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Worksheet 1st Final Review Cp Chem - Iverson
Chemistry
Semester 1
Final Review
Ch. 1…(old book ch 1+2)Chemistry; its branches, technology, extensive vs. intensive properties, states of matter, basic structure of periodic table; metals, nonmetals, metalloids and properties of
each, families/groups, rows/periods, eleme... | 4 | [
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Topologists loops versus algebraists loops
up vote 24 down vote favorite
13
Let X be an affine variety over ℂ. Consider X(ℂ) with the classical topology, and create the topologists loop space ΩX(ℂ) of maps from the circle into X(ℂ). One can also construct the ind-variety X
((t)), whose R-points are given by X(R((t))) ... | 5 | [
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Calculations That Show Comets Began Near Earth
Below is the online edition of In the Beginning: Compelling Evidence for Creation and the Flood, by Dr. Walt Brown. Copyright © Center for Scientific Creation. All rights reserved.
Click here to order the hardbound 8th edition (2008) and other materials.
Calculations Tha... | 4 | [
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Calculating Returns of Investment - Formulas & Examples – 1
You Are Here » Home » Investment » Calculating Returns of Investment – Formulas & Examples – 1
Calculating Returns of Investment – Formulas & Examples – 1
Posted by Raviraj Parekh+ on November 18th, 2012 | No Comments
We invest our money in various asset cl... | 4 | [
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Problems on Distance Between Two Points |Formula | Word Problems withh Solutions
Problems on Distance Between Two Points
Solving the problems on distance between two points with the help of the formula, in the below examples use the formula to find distance between two points.
Worked-out problems on distance betw... | 4 | [
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Zeno's paradox
Non Archimedean version of Zeno's paradox.
Recall the usual version has Achilles chasing a turtle, where the turtle is given a ten cubit head start and Achilles runs ten times faster than the turtle. When Achilles runs 10 cubits, the turtle
goes 1 cubit. When Achilles runs 1 cubit, the turtle goes 1/10 ... | 4 | [
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.
Teaching Inference for Randomized Experiments
Michael D. Ernst
St. Cloud State University
Journal of Statistics Education Volume 17, Number 1 (2009), www.amstat.org/publications/jse/v17n1/ernst.html
Copyright © 2009 by Michael D. Ernst, all rights reserved. This text may be freely shared among individuals, but it... | 5 | [
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How can annual average temperatures be so precise?
The comments on
what should be reproducible
raise the subject's question -- since a given thermometer reading is only within, say, 0.8 degrees, how can we claim to know the annual average temperature to 0.01 degrees for the globe?
One thing to remember is that the 0... | 4 | [
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Useful Fourier Transforms
Riω=∫−∞∞rte−(iωt)d t =∫−TT1e−(iωt)d t =e−(iωt)−(iω)|−TT=(−1iω)(e−(iωT)−eiωT) R ω t r t ω t t T T 1 ω t T T ω t ω 1 ω ω T ω T
(1)
since
e−(iωT)−eiωT=−(2isinωT) ω T ω T 2 ω T
we get:
Riω=2sinωTω=2TsinωTωT R ω 2 ω T ω 2 T ω T ω T
(2)
which is a sinc!
recal... | 5 | [
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Learning R Using a Chemical Reaction Engineering Book: Part 4
The links to previous parts are listed here. (Part 1, Part 2, Part 3). In this part, I tried to recreate the examples in sections A.3.1 of the computational appendix in the reaction engineering book
(by Rawlings and Ekerdt).
Solving a system of ordinary d... | 5 | [
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Help required on solving Trigo sum..
Prove the identity $[1+(tanA)^2] / [1-(tanA)^2] = sec2A$ Thanks in advance
Last edited by Punch; December 26th 2009 at 05:15 AM.
Last edited by e^(i*pi); December 26th 2009 at 04:55 AM. Reason: tidying up latex
so since $1+tan^2A = sec^2A$ For $[1 + (tanA)^2] / [1 - (tanA)^2] = s... | 4 | [
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long term sunspot number prediction based on emd analysis and ar
Chin. J. Astron. Astrophys. Vol. 8 (2008), No. 3, 337–342 (http://www.chjaa.org)
Chinese Journal of Astronomy and Astrophysics
Long-Term Sunspot Number Prediction based on EMD Analysis and AR Model ∗
Tong Xu1 , Ji... | 4 | [
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