content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Binary Logistic
┌──────────────────────────┐
│[Focus 17] │
... | 5 | [
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.
Annu. Rev. Astron. Astrophys. 2004. 42: 275-316
Copyright © 2004 by . All rights reserved
5. RADIO WAVE SCINTILLATION AS A DIAGNOSTIC FOR ISM TURBULENCE
One of the earliest indications that the ISM is turbulent came from scintillation observations of electron density fluctuations on very small scales. These ... | 4 | [
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Injective hulls of residue fields of a local ring and its ring invariants by finite group action
up vote 1 down vote favorite
Let $R$ be a local ring, $m$ its maximal ideal and $k:= R/m$ its residue field. Suppose that a finite cyclic group $G= \mathbb{Z}/ m \mathbb{Z}$ has a linear nontrivial action on $R$. Let $R^G$... | 5 | [
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Representation of vectors in $\mathbb{R}^2$ via differences of small vectors.
up vote 14 down vote favorite
7
Is the following fact true?
Let $v_1,\ldots, v_k \in \mathbb{R}^2$, $\|v_i\|\leq 1$, be vectors that add up to zero. Does there exist a permutation $\sigma\in S_k$ and vectors $w_1,\ldots, w_k \in \mathbb... | 5 | [
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Gerber's Gravity
In 1859 the French astronomer LeVerrier announced, based on many years of careful observations and calculations, that the perihelion of the planet Mercury evidently precesses at a slightly faster
rate than can be accounted for by Newtonian mechanics given the known distribution of material in the sol... | 4 | [
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Quandaries & Queries at Math Central
146 items are filed under this topic.
Calculating volume of concrete, 2006-11-17
dirt, sand, anything.
[This article contains a special calculator to help you find the volume (for example, the cubic yards) of material required to fill (or empty) a space if you kn... | 4 | [
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Mean-Reverting Logarithmic Modeling of VIX
Bao, Qunfang (2013): Mean-Reverting Logarithmic Modeling of VIX.
PDF
MPRA_paper_46413.pdf
Download (499kB) | Preview
Abstract
Since March 26, 2004, when the CBOE Futures Exchange (CFE) began trading futures written on S&P500 volatility index (VIX), volatility has beco... | 4 | [
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Hereditarily Countable Names and Proper Forcing
up vote 4 down vote favorite
The 'hereditarily countable names' are as defined in Shelah's Proper and Improper Forcing, Chapter 3 Definition 4.1. Let $\mathbb{P}$ be a proper forcing notion and $\dot{Q}$ a $\mathbb{P}$-name such
that $\Vdash_{\mathbb{P}}$ "$\dot{Q}$ is a... | 5 | [
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Myth #3: Cylinder Regeneration is Always a Good Design Goal
The purpose of a cylinder regeneration circuit is to extend the piston faster than if the pump output were acting directly on the cap end area.
The purpose of a cylinder regeneration circuit is to extend the piston faster than if the pump output were acting d... | 4 | [
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Probability Conundrum
October 3rd 2010, 06:54 AM #16
Make sure you are counting thus:
Keep track of two counts, say, c1 and c2, both initially set at 0.
We are equating "girl" with "tails."
If you get HH increment neither c1 nor c2.
If you get HT increment c1 but not c2.
If you get TH incre... | 5 | [
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WebDiarios de Motocicleta
Today, we will prove bounds for the basic cuckoo hashing. We are going to place our n keys into two arrays A[1..b] and B[1..b], where b=2n. For this, we will use two hash functions, h and g. When
some element x arrives, we first try to put it in A[h(x)]. If that location already contains some ... | 4 | [
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Matrix-Norm aquivalence with p-Norm
up vote 0 down vote favorite
Let $A$ be a square Matrix and $||\cdot ||_p$ the induced Matrixnorm for $1 \leq p \leq \infty$. Is it true that $$||A||_p\leq \max(||A||_1,||A||_{\infty})?$$ For $p=2$ the answer is yes because $||A
||_2^2\leq ||A||_1||A||_{\infty}$.
The motivation is ... | 5 | [
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How many pages?
January 30th 2013, 04:33 PM
testtrail429
How many pages?
The pages of a book are numbered, beginning with page 1. If all of the pages in the book are considered, there are a total of 2,989 individual digits needed to print the page numbers. How many
pages does the book contain?
January 30th ... | 4 | [
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What is the equation for a parabola with a vertex of (5,-2) and a point (6,1)?
Include "y=" as part of your... - Homework Help - eNotes.com
What is the equation for a parabola with a vertex of (5,-2) and a point (6,1)?
Include "y=" as part of your answer.
To determine the equation, use the vertex form of the p... | 4 | [
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Scientific Papers - Vi
1915]
ON THE THEORY OF THE CAPILLARY TUBE
359
[Added November 17. Since this paper was communicated, I have been surprised to find that the problem of the last paragraphs was treated long ago by Laplace in the Mdcanique Celeste* by a similar method, and with a result equivalent to that (44) ... | 4 | [
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homotopy Kan extension
Context
Homotopy theory
Background
Variations
Definitions
Paths and cylinders
Homotopy groups
Theorems
Model category theory
Definitions
Morphisms
Universal constructions
Refinements
Producing new model structures
Presentation of $(\infty,1)$-categories
Model structures
for $\inft... | 4 | [
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Catching a Pig
Date: 05/09/97 at 07:57:08
From: Udo Guenthner
Subject: When does the farmer catch the swine
Hi,
This question is from Martin Gardner's book:
A farmer wants to catch a pig which is x meters away from him. They
start running at the same time.
The pig runs straight ahead, perpendicular to the line fa... | 5 | [
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BBC NEWS | UK | Magazine | Do you get less wet if you run in the rain?
The Beano comic character Billy Whizz famously runs so fast that he doesn't get wet in the rain. Is this possible? Inspired by BBC Online Magazine's occasional Formula Won feature, which highlights
equations of dubious value, here's a brief analysis... | 4 | [
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Integration
February 26th 2009, 10:23 AM
HunkaMath
Integration
This is a table...
Concentration of Chemical A, x....|1 | 2| 3 |4 | 5 | 6 |7
Concentration of Chemical B, f(x)|12|16|18|21|24|27|32
Let me know if you need help figuring out that table.
So the 3 questions I am having trouble with a... | 4 | [
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Digits of a Square
Date: 05/26/2001 at 12:14:38
From: Jeevanjyoti Chakraborty
Subject: Number Theory
If the tens digit of a^2 (a is an integer) is 7, what is the units
digit?
My attempt: a^2 = N*100+10*7+x
x can be 0,1,4,5,6,9
After this I could not proceed.
Date: 05/26/2001 at 18:50:49
From: Do... | 5 | [
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Demazure, lectures on p-divisible groups, II.5, the Frobenius and the Verschiebung morphism
nLab
Demazure, lectures on p-divisible groups, II.5, the Frobenius and the Verschiebung morphism
This entry is about a section of the text
Let $k$ be a field with prime characteristic $p$.
The Frobenius morphism $F_G: G\to G^... | 4 | [
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Research methods in nutritional anthropology
Contents - Previous - Next
This is the old United Nations University website. Visit the new site at http://unu.edu
Many food-related activities can be conceptualized as dynamic processes that occur over time. Jerome (1975), for example, has recently called attention to t... | 5 | [
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Deterministic global optimization algorithm based on outer approximation for the parameter estimation of nonlinear dynamic biological systems
Abstract
Background
The estimation of parameter values for mathematical models of biological systems is an optimization problem that is particularly challenging due to the nonl... | 4 | [
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Power analysis for genome-wide association studies
Abstract
Background
Genome-wide association studies are a promising new tool for deciphering the genetics of complex diseases. To choose the proper sample size and genotyping platform for such studies, power
calculations that take into account genetic model, tag SNP ... | 4 | [
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How many points are there on an elliptic curve reduced at a bad prime?
up vote 2 down vote favorite
1
Given an elliptic curve $E$ defined over $\mathbb{Z}$, and a prime $p$, I know that Hasse's theorem gives, when $p$ is a good prime, a relation between the number of solutions over $\mathbb{F}_{p^n}$
and the number of... | 4 | [
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isomorphismes
Posts tagged with matrices
In many showers there are two taps:
Hot
and
Cold.
You use them to control both the pressure and the temperature of the water, but you do so indirectly: the pressure is controlled by the sum of the (position of the) two taps, while the
temperature is ... | 5 | [
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direct category
Context
Category theory
Concepts
Universal constructions
Theorems
Extensions
Applications
Contents
Idea
A direct category is a category in which the morphisms only go in “one direction.”
A direct category can be thought of as a category of geometric shapes for higher structures which includes ... | 4 | [
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Bank Jobs And Preparation
some times in quantitative aptitude test finding out cube root can turn in to massive headache , normally the question will be about finding square root of integers and six digits. This technique
wont work with numbers more than six digits or which is not a perfect cube. This can really sav... | 4 | [
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Domain of a Polar Equation?
January 6th 2008, 11:41 AM #1
Newbie
Joined
Jan 2008
Posts
2
Domain of a Polar Equation?
I have 11 problems to do--all relating to finding the domains of polar equations--a concept that I don't understand.
Here are the graphs of the equations whose domains I need to find.... | 4 | [
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0.0849609375,
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0.05029296875,
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0.03515625,
0.130859375,
0.103515625,
0.06494140625,
-0.09375,
-0.0537109375,... | 11,128 | 11128 | |
Solving an equation by substitution
June 15th 2007, 05:59 AM #1
Newbie
Joined
Jun 2007
Posts
3
Solving an equation by substitution
Hello, I've come across a problem in my textbook that really baffles me.
Task: to use substitution $u=x+1/x$ to solve the equation for x:
$x^2+3x-2+3/x+1/x^2=0$
... | 4 | [
-0.05029296875,
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0.06103515625,
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0.00811767578125,
0.08837890625,
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Solving Word Problems With Equations
May 19th 2010, 08:47 AM
larry21
Solving Word Problems With Equations
Determine the following numbers.
Two consecutive integers with half of the small equal to 4 more than one third of the larger.
My work:
Let the value of 1st integer be x(1/2)
Let the value... | 4 | [
-0.041259765625,
0.00099945068359375,
0.049072265625,
-0.031982421875,
-0.0294189453125,
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0.006317138671875,
0.0751953125,
-0.0157470703125,
-0.0615234375,
-0.068359375,
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0.03076171875,
0.041259765625,
0.048095703125,
0.03173828125,
0.01708984375,
-0... | 11,130 | 11130 | |
An Example of a Normal Curve
One way to estimate probabilities is to use empirical data. However, if the histogram of the data shapes like a bell curve (or reasonably close to a bell curve), we can use a normal curve to estimate
probabilities. All we need to know are the mean and standard deviation of the data. We use... | 5 | [
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0.09716796875,
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-0.064453125,
0.00518798828125,
-... | 11,131 | 11131 | |
uantization
Geometric Quantization
John Baez
August 11, 2000
Geometric quantization is a marvelous tool for understanding the relation between classical physics and quantum physics. However, it's a bit like a power tool - you have to be an expert to operate it
without running the risk of seriously injuring your brai... | 4 | [
-0.1162109375,
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... | 11,132 | 11132 | |
Mobius Function for 2^X
April 11th 2010, 07:31 PM
redsoxfan325
Mobius Function for 2^X
We have to find the Mobius function $\mu$ for the set $2^X$ such that $F(Y) = \sum_{Z\subset Y}f(Z)$ for any $Y\subset X\Longleftrightarrow f(Y)=\sum_{Z\subset Y}\mu(Z)F(Y\backslash Z)$.
I started doing this for a few bas... | 4 | [
-0.015869140625,
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0.0458984375,
-0.000274658203125,
-0.025... | 11,133 | 11133 | |
Finite field Szemeredi-Trotter theorem with unequal number of points and lines
up vote 9 down vote favorite
4
My question concerns the Szemerédi-Trotter theorem in $\mathbb{F}_q^2$. If we have $m$ points and $n$ lines in $\mathbb{F}_q^2$, then by Cauchy-Schwartz the number of point-line incidences is as most
$$\min(mn... | 5 | [
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0.021... | 11,134 | 11134 | |
De
Degrees of Freedom For a Factorial ANOVA
2001-04-15
A categorical independent variable is called a factor. The categories are called the levels of the factor.
Replications are experiment observations made under the same conditions, that is, under the same combination of factor levels.
An experimental design is s... | 4 | [
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0.014282226562... | 11,135 | 11135 | |
Feasibility of a list of prescribed distances in R^3
up vote 4 down vote favorite
5
I am puzzled with the following problem:
Given $n$ real numbers it is to obtain a Yes/No answer to: "whether it is possible to arrange different points in the Euclidean $\mathbb{R}^3$ so that every of the given numbers represents a sh... | 4 | [
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0.1416015625... | 11,136 | 11136 | |
Schur functors I
Contents
Preface
This is a paper that John Baez and Todd Trimble are writing. There is a followup, Schur functors II.
Introduction
Classically, a Schur functor is a specific sort of functor
$F: \Fin\Vect \to \Fin\Vect$
where $Fin\Vect$ is the category of finite-dimensional complex space. Namely, ... | 4 | [
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0.019775390... | 11,137 | 11137 | |
Exact inversion of matrix complexity (by Gaussian elimination)
October 29th 2013, 06:34 AM #1
Junior Member
Joined
Oct 2013
From
Moscow, Russia
Posts
41
Exact inversion of matrix complexity (by Gaussian elimination)
I would like to check if what I have done is correct. Please, any input is appreciate... | 4 | [
-0.08349609375,
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-0.0810546875,
... | 11,138 | 11138 | |
Help with solving graph equation (use of implicit differentiation)
December 7th 2012, 08:10 PM #1
Newbie
Joined
Dec 2012
From
Singapore
Posts
3
Equation of graph : 2x^5 + 2y^2= 5xy
The vertical tangent line and the horizontal tangent line to the curve intersect at the point A(a,b). Find the coordi... | 4 | [
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0.1611328125,
-0.061279296875,
-0.0247802734... | 11,139 | 11139 | |
characterization of chordal graphs
up vote 1 down vote favorite
I recently tried to prove the following characterization of chordal graphs, attributed to Fulkerson & Gross:
"A graph $G$ is chordal if and only if it has an ordering such that for all $v \in G$, all the neighbors of $v$ that precede it in the ordering f... | 4 | [
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0.06640625,
-0.03979... | 11,140 | 11140 | |
Limits: A Graphical Approach - Concept
Brightstorm is like having a personal tutor for every subject
See what all the buzz is about
Check it out
Limits: A Graphical Approach - Concept 20,345 views
In Calculus, a limit is used to describe the value that a function approaches as the input of that function approaches ... | 4 | [
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-0.10498046... | 11,141 | 11141 | |
Math Forum Discussions
Re: problem on record-breaking values in probability
Posted: Mar 10, 2013 8:52 PM
On 03/01/2013 08:41 AM, David Bernier wrote:
> On 02/27/2013 10:24 PM, David Bernier wrote:
>> On 02/27/2013 04:05 PM, James Waldby wrote:
>>> On Wed, 27 Feb 2013 07:10:08 -0500, David Bernier wrote:
>>>> On 02/27/... | 4 | [
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Math Forum Discussions
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Topic: Stochastic differential equations with Simulink?
R... | 4 | [
-0.07666015625,
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0.02001953125,
-0.044677... | 11,143 | 11143 | |
CS359G Lecture 4: Spectral Partitioning
In which we prove the difficult direction of Cheeger’s inequality.
As in the past lectures, consider an undirected ${d}$-regular graph ${G=(V,E)}$, call ${A}$ its adjacency matrix, and ${M: = \frac 1d A}$ its scaled adjacency matrix. Let ${\lambda_1 \geq \cdots \geq
\lambda_n}$ ... | 4 | [
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-0.01361083984375,
0.07763671875,
-0... | 11,144 | 11144 | |
simplifying expressions
March 3rd 2013, 12:08 PM #1
Newbie
Joined
Feb 2013
From
frydek-mistek
Posts
5
simplifying expressions
Simplify:
1. sinx cos2x / cosx sin2x
sinx cos^2x - sin^2x / 2 sinx cosx
sinx ( cos^2x - 1) / 2 sinx cosx
solution: 1 - 1/2 cos^2x
I am not sure if wh... | 4 | [
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0.0830078... | 11,145 | 11145 | |
Need Help w/ Two Proofs.
April 8th 2011, 01:13 AM #1
Need Help w/ Two Proofs.
Alright, so here's the first problem.
Prove that for all positive integers n, $\binom{2n}{n}< 4^n$.
This is what I have so far;
For n=1, $\frac{2n!}{n!n!} = \frac{2!}{1!1!} = 2 < 4^1 = 4^n.$
Assume this is true for so... | 4 | [
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0.0771484375,
0.06298828125... | 11,146 | 11146 | |
Selling Gold Jewelry
Selling Gold Jewelry:
The Magic Question
When selling gold jewelry or any other form of gold you might own, there is one magic question you must ask that will shift the odds of getting top dollar for your gold:
What ... | 4 | [
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0.0203857421875,
-... | 11,147 | 11147 | |
Earth Electrode Resistance
Earthing of electrical systems is essential for the correct functioning and the protecting of life and equipment in the event of faults. The earth electrode (connection of the earthing system to the
ground) is an essential part of any system.
The estimation of electrode resistance and funct... | 4 | [
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0.0164794921875,
-0.04125976562... | 11,148 | 11148 | |
principle of omniscience
Principles of omniscience
Idea
In logic and foundations, a principle of omniscience is any principle of classical mathematics that is not valid in constructive mathematics. The idea behind the name (which is due to Bishop (1967))
is that, if we attempt to extend the computational interpretati... | 4 | [
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... | 11,149 | 11149 | |
Find all the zeros of this function: f(x) = 1 - 3cos(2x) in this interval?
September 22nd 2010, 03:46 PM #1
Newbie
Joined
Sep 2010
Posts
10
Find all the zeros of this function: f(x) = 1 - 3cos(2x) in the interval (pi/2 is less than/equal to x less then equal to pi.
Thank you.
$\frac{\pi}{2} < x ... | 4 | [
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-0.0703125,
0.0281982421875,
-0.09375,
... | 11,150 | 11150 | |
Area bounded by curves(check answer)
September 22nd 2008, 02:54 PM #1
Area bounded by curves(check answer)
Hello.
Calculate the area bounded by these curves:
$y=-x^2+4x-3$
$y=4x-3$
$x=2$
My answer is $\frac{77}{12}$ . I went like this:
For the area above x
$S_1 = \int\limits_{\frac{3}... | 5 | [
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0.059326171875... | 11,151 | 11151 | |
Prove that span{x,y}=span{y,z}
September 22nd 2010, 07:28 AM
Runty
Prove that span{x,y}=span{y,z}
I have never liked span questions, so I could use some help with this.
First, suppose that $V$ is a vector space over a field $F$.
Now suppose $x,y,z\in V$ satisfies $x+y+z=0$. Prove that $span\{x,y\}=span... | 5 | [
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-0.0107421875,
-0.019775390625,
-0.038818359375,
-0.... | 11,152 | 11152 | |
Comparison Test and Geometric Series
November 23rd 2012, 03:03 AM
lmstaples
Comparison Test and Geometric Series
The Problem:
Let a(n) = (n^2)/(2^n)
Prove that if n>=3, then:
(a(n+1))/(a(n)) <= 8/9
By using this inequality for n = 3,4,5,..., prove that:
a(n+3) <= ((8/9)^n)(a(3))
... | 5 | [
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Posts about Scalar Field Theory on The Gauge Connection
Paper replacement
12/05/2009
I have updated the paper with the answer to Terry Tao on arxiv (see here). No correction was needed, rather I have added a new result giving the next-to-leading order correction for the Yang-Mills
field. This result is important as i... | 4 | [
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0.00166320... | 11,154 | 11154 | |
Length of arc ! Help please
November 18th 2012, 04:46 AM
Eddie1994
Length of arc ! Help please
Okay so i know the formula to length of an arc being 2 pie r (theta/360)
So could any 1 help me with this question and ill forever be grateful
If R is the Radius and Theta is the angles subtended by an arc f... | 4 | [
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-0.0238037109375,
0.0417... | 11,155 | 11155 | |
Proving trigonometric equations:
April 21st 2009, 02:26 PM #1
Newbie
Joined
Apr 2009
Posts
7
Can someone help me prove the following identities:
(1+cos^2x/1+tan^2x) tanx=cotx
e) secx-cosx=sinxtanx f)sinxcosx/sinx=1+tanx\tanx g)cosx/sinx-sinx/secx=cos^2xcotx
h)cotx-tanx/cotx+tanx=2cos^2x-1... | 4 | [
-0.0228271484375,
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... | 11,156 | 11156 | |
Quadratic Models
April 17th 2013, 05:47 PM
Fratricide
Quadratic Models
1) Find the equation of the quadratic which passes through the points with coordinates: (-2, -1), (1, 2), (3, -16).
2) An arch on the top of a door is parabolic in shape. The point A is 3.1 m above the bottom of the door. The equation y ... | 4 | [
-0.06787109375,
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-0.02465820312... | 11,157 | 11157 | |
Linear programming question
March 6th 2014, 02:44 AM #1
Newbie
Joined
Mar 2014
From
Australia
Posts
8
DuPhos produces two chemicals: Formula S and Formula T.
These chemicals are produced via two manufacturing processes. Process 1 requires 2 hours of labour and 0.5 kg of raw material to produce 50... | 5 | [
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Transmit spectrum with phase noise
2 votes, average: 3.00 out of 5)
Transmit spectrum with phase noise
by Krishna Sankar on August 28, 2012
The earlier posts on phase noise discussed about phase noise in oscillators, conversion of phase noise profile to jitter and the impact of phase noise on the error vector magnit... | 4 | [
-0.052978515625,
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-0.0076599121093... | 11,159 | 11159 | |
kernel of an isogeny and coker of its induced map on the Tate module
up vote 2 down vote favorite
In a proof in Milne's note "Abelian Variety" (top on p.52), I saw an equality: $ \mathrm{Ker}(\beta)(l) = \mathrm{Coker}(T_{l}(\beta))$, here $\beta$ is an (separable) isogeny of an abelian variety
$A/k$, $l$ is a prime n... | 5 | [
-0.006927490234375,
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Inequalities
Journal of Inequalities and Applications
Volume 2009 (2009), Article ID 763252, 7 pages
doi:10.1155/2009/763252
Research Article
Inequalities for Generalized Logarithmic Means
^1Department of Mathematics, Huzhou Teachers College, Huzhou 313000, China
^2School of Teacher Education, Huzhou Teachers Colle... | 4 | [
-0.058349609375,
0.0034637451171875,
0.050537109375,
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-0.03076171875,
-0.0... | 11,161 | 11161 | |
[SOLVED] Can anyone give me hints on how to do these problems?
September 27th 2009, 06:24 PM #1
Newbie
Joined
Jul 2008
Posts
10
[SOLVED] Can anyone give me hints on how to do these problems?
Can anyone give me a hint on how to do these? Just tell me which methods to use, like can problem "a" be factored ... | 4 | [
-0.0908203125,
0.017822265625,
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0.08349609375,
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0.029052734375,
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-... | 11,162 | 11162 | |
Things that amuse me
Lost and found
If I write
10^8
in Haskell, how many multiplications will be used to compute the power? A stupid question? Well, for this example, but if I was computing
x^8
and x has 100000 digits then I'd care. So how can I find out? I can look at the definition of the exponentiation operator... | 5 | [
-0.0556640625,
0.0118408203125,
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0.026611328125,
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-0.0341796875,
0.0361... | 11,163 | 11163 | |
Calculate AB Amplifier Operating Parameters
Introduction
The last thirty years of my work experience involved the maintenance of high power AM television transmitters and related equipment. Some of these transmitters were capable of a RF power output of
35,000 watts at peak sinc levels in the AM TV bands near 200 Mhz.... | 5 | [
-0.049560546875,
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0.05810546875,
0.08251953125,
-0.05688476562... | 11,164 | 11164 | |
Math Forum Discussions
Re: This Week's Finds in Mathematical Physics (Week 229)
Posted: May 16, 2006 10:32 PM
In article <1145101189.273980.185650@i40g2000cwc.googlegroups.com>,
Squark <top.squark@gmail.com> almost wrote:
>Hello John and everyone!
Hello! Long time no see! How are you doing? I showed up at
the Perime... | 4 | [
-0.07958984375,
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-0.054443359375,
... | 11,165 | 11165 | |
Laws in Quantitative Linguistics
Herdan dimension
From Laws in Quantitative Linguistics
1. Problem and history
The relation between vocabulary V and text length N (in the number of words) has been many times used as a structural or stylistic characteristic of a text. The problem was discussed by Gustav Herdan
(1966... | 5 | [
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0.0302734375,
-0.00933837890625,
-0.03442382... | 11,166 | 11166 | |
eview of
Review of MATH 300
XIV. Old theorems:
A. Division Algorithm : If a and b are positive integers with b less than or equal
to a, then there exists a natural number q and a non - negative integer r such
that a = bq + r, where 0 is less than or equal to r, and r is less than b.
B. Euclid’s Algorithm: Let a and ... | 5 | [
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0.08... | 11,167 | 11167 | |
Primes Containing but Not Ending in 123456789
Date: 02/26/2003 at 20:35:12
From: Marie
Subject: Prime numbers
Are there infinitely many primes that contain but do not end in the
block of digits 123456789 ?
I could do the problem if it asked me to show infinitely many primes
that end in this block, because I would us... | 5 | [
-0.07763671875,
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-0.030... | 11,168 | 11168 | |
Math Forum Discussions
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Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Moore and McCabe Question
Replies: 1 Last Post: Oc... | 4 | [
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-0.00836181640625,
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0.03466796875,
... | 11,169 | 11169 | |
The fascination that lasts
Martin Gardner, the first Mathemagician, the first editor of the column called Mathematical games in Scientific American and an author of over 70 thought provoking books on topics mostly related to
mathematics, physics, logic and philosophy passed away on May 22 this year.
Given that he was ... | 5 | [
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-0.0390625,
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... | 11,170 | 11170 | |
Mathematical foundations of Quantum Field Theory
up vote 16 down vote favorite
10
Is there any reasonable approach, essentially different from Wightman's axioms and Algebraic Quantum Field Theory, aimed at obtaining rigorous models for realistic Quantum Field Theories? (such as
Quantum Electrodynamics).
EDIT: the re... | 4 | [
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Find the Coordinates of Point p
Date: 10/22/2002 at 03:09:45
From: Erwin Schwarz
Subject: Solving Radical Equations
I'm trying to help my daughter with her Grade 11 math. The chapter is
titled Solving Radical Equations and Inequalities, but I'm struggling
with helping her on a particular question that goes like this:... | 4 | [
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0.0022... | 11,172 | 11172 | |
Elementary aeronautics; or, The science and practice of aerial machines
IC-NRLF
SB 3E TOO
AERONAUTICS
UNIVERSITY OF CALIFORNIA LIBRARY
LIBRARY
OF THE
UNIVERSITY OF CALIFORNIA.
Class
ELEMENTARY AERONAUTICS,
a
Artificial and Natural Flight. A Practical Treatise
on Aeroplanes, &c. By Sir HIRAM MAXIM. With 95
... | 4 | [
-0.05078125,
0.031494140625,
-0.04541015625,
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0.052490234375,
-0.047119140625,
-0.035644... | 11,173 | 11173 | |
Homework Help
Posted by sheba on Sunday, July 17, 2011 at 4:43pm.
Essay show all work. Add the following polynomials; (1/5x^2-1/5x-3/4)+(1/10x^2-1/2x+1/2)
I really need help and I am thankful for your time, some tutors just mess with your head and make you more confused,if I did not need you guys I would not be here ... | 4 | [
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0.047607421875,
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0.032470703125,
-0... | 11,174 | 11174 | |
Annotated
Stata Annotated Output
MANOVA
This page shows an example of multivariate analysis of variance (MANOVA) in Stata with footnotes explaining the output. The data used in this example are from the following experiment.
A researcher randomly assigns 33 subjects to one of three groups. The first group receives t... | 5 | [
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0.1259765625,
... | 11,175 | 11175 | |
please help me solve: cos (x - 20 degrees) = -0.437, for the range 0 to 360 degrees
January 13th 2010, 07:41 AM #1
Newbie
Joined
Jan 2010
Posts
3
please help me solve: cos (x - 20 degrees) = -0.437, for the range 0 to 360 degrees
hey i'm doing some revision for a test i have tommorw and this was one of t... | 4 | [
-0.055419921875,
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0.0274658203125,
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0.06884765625,
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-0.0322265625,
-0.00775146484375,
-... | 11,176 | 11176 | |
Do Rational and Irrational Numbers Alternate?
Date: 10/13/2000 at 10:43:05
From: Joe Cooper
Subject: Do rational and irrational numbers alternate?
It is known that:
1. Any two non-equal real numbers "contain" an irrational.
2. Any two non-equal real numbers "contain" a rational.
These real numbers can of cou... | 5 | [
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-0.0947265625,
0.00692749023437... | 11,177 | 11177 | |
Triangle Centroid in 3-Space
Date: 12/30/96 at 17:31:44
From: Nathan D Chute
Subject: Centroid of a triangle
Lets say we have a triangle in 3D given by:
P1 = (x1,y1,z1) P2 = (x2,y2,z2) P3 = (x3,y3,z3)
The centroid of a triangle is the intersection of the medians. I can
find the medians since they are half of the d... | 5 | [
-0.068359375,
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0.011474609375,
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0.0003566741943359375,
-0.0159912109375,
-0.023193359375,
0.007659912109375,
-0.05517578... | 11,178 | 11178 | |
Enn Blog
Enough is enough, ever since i started doing some efforts in maths, i seem to be having some quite good enough success with it, but unfortunately as most of you all know i kind of always escaped
classes when i was in sc or hsc, [specially when they were working on logs] so here after trying to learn a bit abou... | 4 | [
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0.053955078125,... | 11,179 | 11179 | |
Linear Equation type of question (fuel mixture)
June 11th 2006, 10:09 AM
usm_67
Linear Equation type of question (fuel mixture)
here is the question:
Premium gasoline sells for 78.9cents/Liters. Regular gas sells for 71.9 cents/ litres. To boost sales, a middle octane gasoline is formed by mixing premium an... | 4 | [
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-... | 11,180 | 11180 | |
A Detailed Derivation of the Heron
A Detailed Derivation of the Heron’s Formula
Heron’s Formula can be used to find the area of a triangle given the lengths of the three sides. A triangle with side lengths $a$, $b$, and $c$, its area $A$ can be calculated using the Heron’s
formula
... | 4 | [
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0.01... | 11,181 | 11181 | |
find minimum of a function defined by integration in Mathematica
up vote 5 down vote favorite
1
I need to find the minimum of a function f(t) = int g(t,x) dx over [0,1]. What I did in mathematica is as follows:
f[t_] = NIntegrate[g[t,x],{x,-1,1}]
FindMinimum[f[t],{t,t0}]
However mathematica halts at the first try, b... | 5 | [
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Egyptian Algebra - Mathematicians of the African Diaspora
Rhind papyrus Problem 64. Divide 10 hekats of barley among 10 men so that the common difference is 1/8 of a hekat of barley.
Their solution is as follows: Average the value 10/10 = 1. The total number of differences is then 10-1=9. Find half the common differen... | 4 | [
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0.00704956... | 11,183 | 11183 | |
Normal distribution approximation
December 8th 2010, 09:20 AM #1
Junior Member
Joined
May 2010
Posts
26
Normal distribution approximation
A multiple choice test consists of 50 questions and each question has four answers from which to choose. If a student guesses every answer, what is the probabilty that... | 5 | [
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-0.044189453... | 11,184 | 11184 | |
confusion with a question about integrals, multiple choices
May 26th 2013, 03:07 PM #1
Junior Member
Joined
Mar 2013
From
moon
Posts
56
Hi.
Given
$\int_{-1} ^2 {f(x) =a}$ and $\int_0 ^2 {f(x) = b$
the value of
$\int_0 ^{-1} f(x)$ is:
A. a+b
B. 2a-b
C. a-b (which I think... | 4 | [
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0.006927490234375,
0.009765625,
... | 11,185 | 11185 | |
Homework Help
Posted by Lisa on Wednesday, November 10, 2010 at 7:45pm.
I have two different questions.
what is the set built notation of -11x-24<27-10x
and
write the slope intercept equation for the line with slope -5/6 and y intercept (0,4)
• Math - Reiny, Wednesday, November 10, 2010 at 9:59pm
-11x-24<27... | 4 | [
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0.068359375,
-0.05322265625,
-0.0294189453... | 11,186 | 11186 | |
Re: 2.4ghz helix
[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Re: 2.4ghz helix
• Subject: Re: [amsat-bb] 2.4ghz helix
• From: "John P. Toscano" <tosca005@xxxxxxxxxx>
• Date: Fri, 24 Nov 2000 21:37:58 -0600
Bob W7LRD wrote:
> With a Drake converter at the antenna... | 4 | [
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-0.03125,
-0.048095703... | 11,187 | 11187 | |
Congruence Subgroups as Open Subgroups of the Modular Group Under the Right Topology
up vote 8 down vote favorite
2
It occurred to me that a subgroup of the modular group $\Gamma$ is a congruence subgroup iff it contains a subgroup of the form $\Gamma(N)$, while a subgroup of a general topological group is open
iff it... | 4 | [
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-0.047851562... | 11,188 | 11188 | |
vector analysis
vector analysis, a branch of mathematics that deals with quantities that have both magnitude and direction. Some physical and geometric quantities, called scalars, can be fully defined by specifying
their magnitude in suitable units of measure. Thus, mass can be expressed in grams, temperature in degre... | 4 | [
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0.0... | 11,189 | 11189 | |
The sign of monetary policy, part II
(This blog post uses mathjax to show equations. You should see pretty equations, not ugly LaTex code.)
The ECB is in the news
today. They want some inflation, yet the overnight rate is already zero. They're talking about negative interest rates, which leads to a great lunchroom di... | 4 | [
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0.025146484375,... | 11,190 | 11190 | |
Numerical coincidence?
up vote 4 down vote favorite
(Nobody's answered this one on stackexchange after several days.)
My brother built a garage whose horizontal cross-section is a rectangle that measures $45$ feet by $30$ feet. To make sure the right angles were accurate, he measured the two diagonals of the
rectangl... | 5 | [
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-0.06298828125... | 11,191 | 11191 | |
Question on complex no 2
November 17th 2012, 07:40 AM #1
Member
Joined
Nov 2012
From
Singapore
Posts
180
Question on complex no 2
Another question, I'm really sorry.
2.) Let z=cis(a)
a.) Use De Moivre's theorem to show that z^n + (1/z)^n = 2cos(na)
I was able to prove this part.
b.) ... | 4 | [
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... | 11,192 | 11192 | |
differential equation help >.<
April 27th 2008, 08:39 AM
tasukete
differential equation help >.<
hi all,
Im having trouble solving this differential equation, ive tried many times but just cant seem to get my algebra correct >.< and hence end up getting stuck.
$<br /> <br /> dv/dt = -g - bv/m<br /> <br... | 5 | [
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Dispersion of Momentum Operator - Quantum Mechanics
June 5th 2012, 06:14 AM
craig
Dispersion of Momentum Operator - Quantum Mechanics
Hi, hope this is in the right thread, just a little stuck on a Quantum mechanics question.
$\Psi(x) = \sqrt{\frac{2}{a}} \sin{\frac{n \pi x}{a}}$ for $0 < x < a$, zero otherw... | 5 | [
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0.083984375,
-0.0561... | 11,194 | 11194 | |
Homework Help
Posted by mysterychicken on Wednesday, April 22, 2009 at 11:48am.
I have a math CRCT test today and I needed some help on a last minute review problem.
Can someone please explain how to solve this?
1. 12x-3+6x-2=31
-MC
• Algebra - Reiny, Wednesday, April 22, 2009 at 11:51am
add the x's and "mo... | 4 | [
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-0.... | 11,195 | 11195 | |
Sequences and Series Word Problem
July 13th 2013, 01:02 PM
Espionage
Sequences and Series Word Problem
I caught a cold five days ago. Each day after I caught it, I spread it to three new people, as did anyone who caught the cold (beginning the day after they catch it, they spread it to three new
people each ... | 4 | [
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-0.017578... | 11,196 | 11196 | |
Numbers integrally represented by a ternary cubic form
up vote 7 down vote favorite
3
Given integers $a,b,c,$ and cubic form $$ f(a,b,c) = a^3 + b^3 + c^3 + a^2 b - a b^2 + 3 a^2 c - a c^2 + b^2 c - b c^2 - 4 a b c $$ $$ f(a,b,c) = \det \left( \begin{array}{ccc} a & b & c \\\ c & a +
c & b + c \\\ b + c & b + 2 c & a ... | 4 | [
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-0.060791015625,
-0.0... | 11,197 | 11197 | |
How to Write a Best Answer
If you want to win Chegg points and boost your reputation on the Q&A boards (who doesn’t?!), it’s important that your answers are chosen as the Best Answer. To help you write Best Answers, we’ve
defined what a Best Answer is an given an example of what one looks like.
A Best Answer: An answe... | 4 | [
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... | 11,198 | 11198 | |
Using the Power Rule to Find the Derivative
Associated Topics || Dr. Math Home || Search Dr. Math
Using the Power Rule to Find the Derivative
... | 4 | [
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