content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Chapter 4 Teacher Notes
CHAPTER 4 NOTES pg 1
Modeling Nonlinear Data:
Linear Data is data modeled by an equation of the form y = a + bx.
Linearization is the process of transforming nonlinear data into... | 5 | [
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Solving Recursion in fibonacci numbers
up vote 3 down vote favorite
I'm unaware of the mathematics in this algorithm and could use some help.
Algorithm:
if n<2 then
return n
else return fibonacci(n-1) + fibonacci(n-2)
Statement
n < 2 is O(1)
Time n >=2 is O(1)
Return n is O(1) Time n>=2 is - Return fib(n-1) + ... | 5 | [
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... | 12,701 | 12701 | |
[SciPy-User] SCIPY FSOLVE
Warren Weckesser warren.weckesser@enthought....
Mon Oct 12 08:50:12 CDT 2009
It appears you are correct in your concern about the closeness of p1 and
p2. You can avoid the problem of raising a negative number to a
fractional power if you reformulate your residual.
If you change this:
... | 5 | [
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Proof by Contraposition
Associated Topics || Dr. Math Home || Search Dr. Math
Proof by Contraposition
Date: 03/06... | 5 | [
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Explaining Finger Multiplication
Date: 02/13/2002 at 09:36:51
From: erika
Subject: Finger multiplication
The following technique was widely used in medieval Europe.
Knowing how to multiply two numbers less than 6, you can multiply two
numbers between 5 and 10 as follows. Open both palms toward you. To
calculate 7 x... | 4 | [
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Richter Scale Exponents
Name: Alan
Status: student
Age: N/A
Location: N/A
Country: N/A
Date: N/A
Question: The Richter Scale yields very large numerical values from powers of base 10. If know that... | 5 | [
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Multiple graph regularized protein domain ranking
Abstract
Background
Protein domain ranking is a fundamental task in structural biology. Most protein domain ranking methods rely on the pairwise comparison of protein domains while neglecting the global manifold
structure of the protein domain database. Recently, grap... | 4 | [
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Shor’s Algorithm – Breaking RSA Encryption
Posted on April 30, 2014 by Stephanie Blanda
In my previous article, I talked about the RSA cryptosystem which is widely used on the Internet for secure data transmission. The power and security of the RSA cryptosystem derives from the fact
that the factoring problem is “har... | 5 | [
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matrix (mathematics)
matrix, a set of numbers arranged in rows and columns so as to form a rectangular array. The numbers are called the elements, or entries, of the matrix. Matrices have wide applications in
engineering, physics, economics, and statistics as well as in various branches of mathematics. Historically, it... | 4 | [
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Plotting and Graphics in Octave
Posted by John F. McGowan, Ph.D. in
Applied Math
,
Software
on April 25th, 2011 |
no responses
Introduction
This is the fourth article in an occasional series of articles about Octave, a free open-source numerical programming environment that is mostly compatible with MATLAB. Thi... | 5 | [
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Chapter Three: The displacement function
68 3.9 The pseudodistance and Toponogov's theorem Chapter 3 We use the notation of section 3.5. By Proposition 3.5.1, the fixed point set F of the map -1 1 in X is just i a X (). It follows that if
x, Y T X X , x X (), then -1 1 x, Y T X = x, Y T X . / For a R, let a be the dila... | 4 | [
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Infinite sum of random variables: subtle convergence question?
up vote 6 down vote favorite
I have a sequence X[j] of random variables, each of which individually is uniformly distributed on the unit circle in the complex plane, and a corresponding sequence c[j] of positive coefficients. My
sequence of coefficients ha... | 4 | [
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Math Forum Discussions
Re: Equation with x^4 + x^3 + x^2 + x + 1.
Posted: Aug 7, 2012 1:23 PM
2012? 8? 8? ??? ?? 2? 13? 23? UTC+9, dilettante ?? ?:
> "Mina" <mina_world@hanmail.net> wrote in message news:91f9f750-14b3-416f-b264-15a3a86a1bd8@googlegroups.com... > Hello teacher~ > > Let c be a root of x^4 + x^3 + x^2 + ... | 5 | [
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Classification of certain algebraic curves
up vote 2 down vote favorite
2
Let $C$ be a complex algebraic curve. It is well known that if $L$ is a special divisor on $C$, i.e., $h^0(L) > 0$ and $h^1(L) > 0$, then $$ h^0 (L) \le \frac{1}{2} \deg L + 1. $$ Assume that $L$ is
not trivial and $L \ne K_C$. The equality hold... | 4 | [
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Crooks' Fluctuation Theorem
Crooks’ Fluctuation Theorem
guest post by Eric Downes
Christopher Jarzynski, Gavin Crooks, and some others have made a big splash by providing general equalities that relate free energy differences to non-equilibrium work values. The best place to start
is the first two chapters of Gavin C... | 4 | [
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Does It Make Sense to Segment Using Individual Estimates from a Hierarchical Bayes Choice Model?
I raise this question because we see calls for running segmentation with individual estimates from hierarchical Bayes choice models without any mention of the possible complications that might
accompany such an approach.... | 4 | [
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Antenna Factor
The Antenna Factor is used by RF or EMC antenna engineers to describe the required electric field strength that produces 1 Volt at the terminals of an antenna. Alternatively, the Antenna Factor
concept specifies what the received voltage is in the presence of an electric field. It is defined mathematical... | 4 | [
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... | 12,716 | 12716 | |
Sums of Squares
up vote 12 down vote favorite
Every prime $p = 4k + 1$ can be uniquely expressed as sum of two squares, but for which integers $x$ is $x^2 + y^2 =$ some prime $p$? Stated differently, does the square of every positive integer
appear as one of the squares in the representation of some prime $p$?
sums-o... | 4 | [
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Blackbody Radiation
Brightstorm is like having a personal tutor for every subject
See what all the buzz is about
Check it out
Blackbody Radiation 16,363 views
Blackbody radiation states that every object at a finite temperature radiates light. Hotter objects emit more light and at smaller wavelengths when compared ... | 5 | [
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Introduction to Machine Learning, Part 2: Linear Regression
NUMERO DOS
Continuing our exploration of machine learning, we will discuss the use of basis functions for regression analysis. When presented with an unknown dataset, it is very common to attempt to find trends
or patterns. The most basic form of this is visu... | 5 | [
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Course
The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high-quality educational resources for free. To make a donation, or to
view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu.
PROFESSOR STRANG... | 5 | [
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VIR charts and basic circuits
I got an email from Geoff Clarion the other day regarding VIR charts. Geoff graded AP physics exams with me for several years. He was known as the “cruise director” at the AP reading, because he
didn’t just talk about how fun it would be to do something active and interesting – he actually... | 4 | [
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Frobenius algebra
Context
Algebra
Algebraic theories
Algebras and modules
Higher algebras
Model category presentations
Geometry on formal duals of algebras
Theorems
Frobenius algebra
Definition
Definition
A Frobenius algebra in a monoidal category is a quintuple $(A, \delta, \epsilon, \mu, \eta)$ such that
... | 4 | [
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0.048828125,
-0.0009117... | 12,722 | 12722 | |
Frisbee flippin' F<sub>ST</sub>
Evolgen's RPM writes about the opening coin flip of Ultimate:
The beginning of many Ultimate (nee, Frisbee) games is marked by flipping discs to decide which team must pull (kick off) and which goal each team will defend at the start of the game. This is
sort of like the coin fl... | 4 | [
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-0.028564453125,
... | 12,723 | 12723 | |
volume form
Context
Riemannian geometry
Basic definitions
Further concepts
Theorems
Applications
Differential geometry
Contents
Idea
The volume form on a finite-dimensional oriented (pseudo)-Riemannian manifold $(X,g)$ is the differential form whose integral over pieces of $X$ computes the volume of $X$ as mea... | 4 | [
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0.0... | 12,724 | 12724 | |
Exploring behaviors of stochastic differential equation models of biological systems using change of measures
Abstract
Stochastic Differential Equations (SDE) are often used to model the stochastic dynamics of biological systems. Unfortunately, rare but biologically interesting behaviors (e.g., oncogenesis) can be
dif... | 4 | [
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0.012634277... | 12,725 | 12725 | |
Improper integral
You could try it this way: $\int_{0}^{1}sin(ln(x))dx$ $\lim_{L\rightarrow{1}}\int_{0}^{L}sin(ln(x))dx$ One way is you can use Integration by Parts for this: Let $u=sin(ln(x)), \;\ dv=dx, \;\ du=\frac
{cos(ln(x))}{x}, \;\ v=x$ Then you get $xsin(ln(x))-\int{cos(ln(x))}dx$ Now, use parts again: $u=cos(l... | 5 | [
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0.004... | 12,726 | 12726 | |
abstract elementary class
In model theory abstract elementary classes are a vast generalizations of elementary classes of structures beyond first-order theories (e.g. for the infinitary logic $L_{\omega_1,\omega}$) as
introduced by Saharon Shelah. Its theory is also more general than the homogeneous model theory.
An a... | 4 | [
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0.012451171875,
0.0146484375,
... | 12,727 | 12727 | |
Homework Help
Posted by bluebabe on Tuesday, February 21, 2012 at 7:21pm.
if you evaluate the expression 5a-2 for a=1,2,3,4 and so on,you form a sequence of numbers.what is the sum of the first 10 numbers in the sequence you form by evaluating the expression for a=1
through 10? explain your reasoning
• math - Reiny... | 4 | [
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-0.0109252929... | 12,728 | 12728 | |
Physics Archive | October 19, 2008 | Chegg.com
Physics Archive: Questions from October 19, 2008
• Anonymous asked
1 answer
• Anonymous asked
1 answer
• Anonymous asked
1 answer
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• sherlock... | 5 | [
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0.068... | 12,729 | 12729 | |
Is it possible to specify your own distance function using Scikits.Learn K-Means Clustering?
Take the 2-minute tour ×
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
Is it possible to specify your own distance function using Scikits.... | 5 | [
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0.045166... | 12,730 | 12730 | |
Generate Digital Chirp Signals With DDS
Direct-digital synthesis (DDS) is a mature digital-signal-processing (DSP) technology that offers great flexibility and power for generating complex waveforms. One of the advanced waveforms within
the realm of DDS creation (given a dual-accumulator architecture) is chirp or linea... | 4 | [
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0... | 12,731 | 12731 | |
Number Square 2 - Solution - Free Logic Problem - All-Star Puzzles
From the introduction, a different number 0-15 is in each cell of Number Square 2. By clue 1, in the upper-left to lower-right diagonal, the number in the top left cell minus the number next down the
diagonal equals 14, while the number in the bottom r... | 4 | [
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0.00366... | 12,732 | 12732 | |
differential (mathematics)
differential
Article Free Pass
differential, in mathematics, an expression based on the derivative of a function, useful for approximating certain values of the function. The derivative of a function at the point x[0], written as
f′(x[0]), is defined as the limit as Δx approaches 0 of the q... | 5 | [
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a characterization of groups
a characterization of groups
Theorem.
A non-empty semigroup $S$ is a group if and only if for every $x\in S$ there is a unique $y\in S$ such that $xyx=x$.
Proof.
Suppose that $S$ is a non-empty semigroup, and for every $x\in S$ there is a unique $y\in S$ such that $xyx=x$. For each $x\... | 5 | [
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0.001426696777... | 12,734 | 12734 | |
Physical constraints on the establishment of intracellular spatial gradients in bacteria
Abstract
Background
Bacteria dynamically regulate their intricate intracellular organization involving proteins that facilitate cell division, motility, and numerous other processes. Consistent with this sophisticated
organizatio... | 4 | [
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Magnetic Fields in the Early Universe - D. Grasso and
H.R. Rubinstein
5.2. Screening of Very Intense Magnetic Fields by chiral symmetry breaking
Now we discuss another interesting phenomenon if very strong fields could be created.
In very intense magnetic fields, B > 1.5 × 10^18 G, the breaking of the strong interact... | 4 | [
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C
Brightstorm is like having a personal tutor for every subject
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pH and pOH 18,130 views
pH and pOH denote the negative log of the concentration of hydrogen or hydroxide ions. High pH means that a solution is basic while high pOH means that a solution is acidic. Neutral s... | 4 | [
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Posts about Math Education on Random Walks
In less than a month, we’ll be hosting the one and only James Tanton at our school. We’re so excited! I’m especially excited because he’s totally going to help me rally the troops in this fight:
He posted this a few years ago, but I only stumbled on it recently. I’ve been loo... | 5 | [
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0.... | 12,738 | 12738 | |
Künneth formula for Ext groups
up vote 4 down vote favorite
2
Setup: Let $X,Y$ be quasi-compact quasi-separated schemes defined over a field $k$. If necessary, you can also assume that $X,Y$ are noetherian, but I don't want to assume that $X,Y$ have the
resolution property. Let $A,A'$ be quasi-coherent sheaves on $X$ ... | 4 | [
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0.02... | 12,739 | 12739 | |
ng
Narrow Search
Earth and space science
Mathematics
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Per page:
Now showing results 1-10 of 26
This is an activity about solar energy. Learners will first use computers to research and learn how solar panels convert sunlight into electricity. Next, they will calculate the surface area of solar
panels boar... | 4 | [
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DF space
Proof
Let $E$ be a metrisable DF space.
To prove the result, we shall use a proposition recorded in Schaefer (IV.6.7). That says that a convex, circled subset $V$ of $E$ is a neighbourhood of $0$ if (and only if) for every convex, circled
bounded subset $B \subseteq E$, $B \cap V$ is a $0$-neighbourhood in $... | 4 | [
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Posts by
Total # Posts: 10,590
Probability
I get 1.89 also. Not sure if there is a typo or I made a mistake.
Math
Subtract one equation from the other to get: R=M/2. If there is no such option, decide which answer to choose.
statistics
Calculate the Z-score: Z=(10-5.7)/1.8=2.39 Look up the normal distribution table... | 5 | [
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-0.12597656... | 12,742 | 12742 | |
Caveman
This is the old Caveman Chemistry website.
Unit Factor Analysis
UAYF
Every physical measurement has three parts: a value, a unit, and a prec... | 4 | [
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0.11132... | 12,743 | 12743 | |
cofinality
Cofinality
Idea
The cofinality of a quoset (quasi-ordered set) is a measure of the size of the quoset and in particular of the size of its tails. An important special case is the cofinality of an ordinal number, and
there is a related concept of the cofinality of a cardinal number.
Definitions
We begin w... | 4 | [
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Chapter 11 - Polygons
Chapter 11 - Polygons
When the subject of polygons came up in the geometry curriculum, my students did a number of projects that were not included in the text book, in addition to studying the usual topics.
... | 4 | [
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[SOLVED] As Maths!
September 23rd 2008, 08:48 AM #1
Newbie
Joined
Sep 2008
Posts
8
please help
(x) = 4x2 + 12x + C
where C is a constant,
given that f(x) = 0 has equal roots, find the value of C and hence solve f(x) = 0
i've already found that C=9
thanks in advance
$\begin{ga... | 4 | [
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Is there a counterexample to this stronger version of James homotopy splitting?
up vote 4 down vote favorite
James proved the homotopy decomposition $\Sigma\Omega\Sigma X\simeq \bigvee_{n=1}^\infty \Sigma X^{\wedge n}$. This is a natural homotopy equivalence for a pointed connected CW complex $X$. Here $X^
{\wedge n}... | 5 | [
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invertibility of a matrix with a Gaussian perturbation
up vote 2 down vote favorite
Suppose that $A$ is an arbitrary fixed $n\times n$ matrix and $G$ a random $n\times n$ matrix with i.i.d. $N(0,1)$ entries. Is there a simple proof that $A+G$ is invertible with probability 1?
What if $G$ is a random Wigner matrix (sy... | 5 | [
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0.017700... | 12,748 | 12748 | |
Homework Help
Posted by Trisha on Tuesday, July 31, 2012 at 2:01am.
The probability that Aaron sees Hannah on any given day is 1/2. What is the probability that he sees her 3 out of all 5 days this week?
• Math - MathMate, Tuesday, July 31, 2012 at 7:10pm
If we can assume random trials, and that probability re... | 4 | [
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-0.0... | 12,749 | 12749 | |
A secret can be told only 2 persons in 5 minutes .the
same person tells t
A secret can be told only 2 persons in 5 minutes .the
Question same person tells to 2 more persons and so on . How long
will take to tell it to 768 persons ?
Question Submitted By :: General-Aptitude
... | 4 | [
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-0.0017318725... | 12,750 | 12750 | |
Scales and Shears are (Sort of) Commutative and the Latter Generate the Special Linear Group
For a first post I am going to post a response to this article that states without formal proof (“easy to verify”) that you can pull any scale matrix to the left of a shear matrix. This is a
relatively easy first problem but i... | 4 | [
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0.16601562... | 12,751 | 12751 | |
Math Forum Discussions - A intuitive notion of set size.
Date: Jan 13, 2013 5:20 AM
Author: Zaljohar@gmail.com
Subject: A intuitive notion of set size.
For any two sets A,B:
[1] A is bigger than B iff |A| > |B| Or A,B are sets of naturals and
there exist a non empty set C of naturals such that for every element
n of ... | 4 | [
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Mathematics of the Environment (Part 3)
This week I’ll release these notes before my seminar, so my students (and all of you, too) can read them ahead of time. The reason is that I’m pushing into topics I don’t understand as well as I’d
like. So, my notes wrestle with some ideas in too much detail to cover in class—an... | 4 | [
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Methodological issues regarding power of classical test theory (CTT) and item response theory (IRT)-based approaches for the comparison of patient-reported outcomes in two groups of patients - a simulation study
Abstract
Background
Patients-Reported Outcomes (PRO) are increasingly used in clinical and epidemiological... | 4 | [
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0.026245117... | 12,754 | 12754 | |
"best" local chart for an element of $Gr(n,2n)$
up vote 1 down vote favorite
As a by-product of a numerical linear algebra result on structured matrices, I can prove the following result:
For each $m$-dimensional subspace $\mathcal{U}$ of $\mathbb{C}^n$, one can find a $n\times n$ permutation matrix $\Pi$ such th... | 4 | [
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0.0568... | 12,755 | 12755 | |
Adding Algebraic Fractions, Different Denominators
Date: 8/24/96 at 17:41:49
From: Anonymous
Subject: Adding Fractions with Different Denominators
My problem is:
7 2-x 3+5x
- + --- + ----
2x 3x^2 6x^3
How on earth do I solve this? Help!
Date: 8/26/96 at 12:30:58
From: Doctor Mike
Subject: Re: Adding Fra... | 4 | [
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0.1049804687... | 12,756 | 12756 | |
Converting from Polar Coordinates to Rectangular - Concept
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Converting from Polar Coordinates to Rectangular - Concept 17,148 views
It can often be useful to convert polar coordinates to rectangular coordinates.... | 4 | [
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Rectangle Dimensions
January 24th 2007, 12:50 PM
symmetry
Rectangle Dimensions
What are the dimensions of a rectangle of a fixed perimeter P that result in the largest area?
NOTE: What exactly is a fixed perimeter?
January 24th 2007, 01:24 PM
AfterShock
Quote:
The dimensions of a rectangle of a... | 4 | [
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Help with problem solving
March 28th 2008, 09:58 PM #1
Newbie
Joined
Mar 2008
Posts
4
Please help me with the following question:
A sculptor commissioned to design a monument for the long reach city council, has chosen a parabolic shape that stand 15m high with supports at 45° as shown in the diagram... | 4 | [
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Effects of dependence in high-dimensional multiple testing problems
Abstract
Background
We consider effects of dependence among variables of high-dimensional data in multiple hypothesis testing problems, in particular the False Discovery Rate (FDR) control procedures. Recent simulation
studies consider only simple co... | 4 | [
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Symmetry and the Fourth Dimension (Part 2)
The Coxeter group of the cube
Coxeter groups are a huge amount of fun. Normally their delights are reserved for people who have already studied group theory. But I don’t think that’s fair. You don’t need to know music theory to
enjoy a piece by Bach. And you don’t need to kn... | 4 | [
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How much horsepower does a jet engine have?
Posted by juha on Monday, 22 July 2013
Few days ago, I was watching airplanes landing to Helsinki Airport. It was an afternoon, and quite a few planes were touching down. During peak hours, the air traffic controllers handle about 45
landings per hour. Roughly 70% of this ... | 4 | [
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Posts about Problems for Fun on Random Math
The purpose of this post is to prove Chevalley’s theorem: If ${f: X \rightarrow Y}$ is a finite surjective morphism of noetherian separated schemes, with ${X}$ affine, then ${Y}$ is affine.
We will follow the outline in Hartshorne (III.3 Problems 1 & 2 and III.4 Problems 1 &... | 5 | [
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Computers & Technology
Categories Question: Computers & Technology
If the treadmill’s... | 4 | [
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The First Derivative Test for Relative Maximum and Minimum - Problem 3
Brightstorm is like having a personal tutor for every subject
See what all the buzz is about
Check it out
The First Derivative Test for Relative Maximum and Minimum - Problem 3 3,690 views
The relative maxima and minima are critical points of a ... | 4 | [
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proof for open set
January 30th 2010, 04:26 AM
alexandros
proof for open set
Given the set S={(x,y): |x|<1 , |y|<1} prove that is open in $R^2$.
Using the definition of the open set we have:
S is open in $R^2$ iff for all $(x_{1},y_{1})\in S$ ,there exists an ε>0 such that ,for all $(x_{2},y_{2})$:
... | 4 | [
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Associativity of the Baker-Campbell-Hausdorff formula
Let ${{\mathfrak g}}$ be a finite-dimensional Lie algebra (over the reals). Given two sufficiently small elements ${x, y}$ of ${{\mathfrak g}}$, define the right Baker-Campbell-Hausdorff-Dynkin law
$\displaystyle... | 4 | [
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Trace of the identity map in a projective module
up vote 4 down vote favorite
1
Let $A$ be a commutative algebra (over the complex numbers, with a unit) and let $M$ be a finitely generated projective $A$-module, and let $m_1,\ldots,m_n$ be a set of generators of $M$. The Dual
Basis Theorem states that there exists $m_... | 4 | [
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exponentials in a 2-category
Cat is not locally cartesian closed
The 2-category $Cat$ is cartesian closed, in an appropriate 2-categorical sense; see also the discussion here. However, it is not locally cartesian closed. This failure is fundamental and has nothing
to do with strictness or size issues; pullbacks just d... | 4 | [
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Measuring Gender Bias and Prejudice in U.K. Employment
James McComb
Updated March 2013.
If men and women were functionally equal, and t... | 4 | [
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Sampling and Data: Homework
The next four questions refer to the following: A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class
during a quarter.
Exercise 19
What is the population she is interested in?
• A. All Lake Ta... | 4 | [
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Mechanics eBook: Shear and Bearing Stress
Since it is assumed the pin at B will fail first, the force at B is set at 4.909 kip with an unknown angle of θ, as shown at the left. Notice the x-y coordinates are orientated in the handbrake
direction. There are three unknowns, F, T and θ. Summing all forces in x direction, ... | 5 | [
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Local Regression Models - Smoothing
A completely different approach to fitting non-linear problems is via local and non-parametric regression. Say we have a model of the form y=f(x) for some function f, and we want to estimate y[0]=f(x
[0]). In this type of fitting procedure y[0] is estimated using only x values close... | 4 | [
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What is m if function y=(x^2+mx+1)e^x has extrema? - Homework Help - eNotes.com
What is m if function y=(x^2+mx+1)e^x has extrema?
Find m such that `(x^2+mx+1)e^x` has extrema:
Since the function is continuous everywhere for any choice of m, extrema can only occur where the first derivative is zero.
`y=(x^2+mx+1)e^x... | 4 | [
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F
QUADRATIC FUNCTIONS
A function whose values are given by a quadratic polynomial of the form
where a, b, and c are real numbers and c is different from 0, is called a polynomial function of degree 2 or a quadratic function. ... | 4 | [
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Lecture 2: Discovery of Nucleus
Great.
Well, let's get going. Last time we ended up by discovering the electron. We discovered the fact that the atom was not the most basic constituent of matter. But in 1911 there was another discovery
concerning the atom, and this is by Ernest Rutherford in England.
And what Rutherf... | 5 | [
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Methods of Proof — Contradiction
In this post we’ll expand our toolbox of proof techniques by adding the proof by contradiction. We’ll also expand on our knowledge of functions on sets, and tackle our first nontrivial theorem: that
there is more than one kind of infinity.
Impossibility and an Example Proof by Contrad... | 5 | [
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formal logic :: Validity in modal logic
formal logic
Article Free Pass
The task of defining validity for modal wffs is complicated by the fact that, even if the truth values of all of the variables in a wff are given, it is not obvious how one should set about
calculating the truth value of the whole wff. Nevertheles... | 4 | [
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Lecture 26: Traveling Waves and Standing Waves
So today, I will start with a general discussion on waves, as an introduction to electromagnetic waves, which we will discuss next week.
We'll start with a very down-to-earth equation, Y equals one-third X.
And I'm going to plot that for you, so here is Y and here is X, ... | 5 | [
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A new model to simulate and analyze proliferating cell populations in BrdU labeling experiments
Abstract
Background
This paper presents a novel model for proliferating cell populations in labeling experiments. It is especially tailored to the technique of Bromodeoxyuridine (BrdU), which is taken up by dividing
cells ... | 4 | [
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Ultraproduct of n-dimensional Banach spaces and algebras
up vote 3 down vote favorite
1
Hi, I am interested in the following question:
Fix $n$. Let $M_n$ be matrix algebra over the field of complex numbers with normalized trace $tr_n$. Let $M_n^{\omega}$ be an ultrapover of $M_n$, namely we consider the algebra of al... | 5 | [
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decay constant
decay constant, proportionality between the size of a population of radioactive atoms and the rate at which the population decreases because of radioactive decay. Suppose N is the size of a
population of radioactive atoms at a given time t, and dN is the amount by which the population decreases in time d... | 4 | [
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Homework Help
Posted by :) on Friday, June 4, 2010 at 9:12pm.
find algebraically the equation of the axis of symmetry and the coordinates of the vertex of the parabola whose equation is y=-2x^2-8x+3. explain the steps please. :)
• algebra - MathMate, Friday, June 4, 2010 at 9:56pm
The axis of symmetry of a par... | 4 | [
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Homework Help
Posted by kayla on Friday, September 26, 2008 at 10:27pm.
rose counted her money and found that her 25 coins which were nickels, dimes, and quarters were worth $3.20. The number of dimes exceeded the number of nickels by 4. How many coins of each kind did
she have?
I know that the expression for nickles... | 4 | [
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Hamming graphs and power series
up vote 0 down vote favorite
Let $i$ and $h$ be two adjacent nodes in a Hamming graph and let $a$ be any positive real. Let us denote by $d_{ij}$ the distance between node $i$ and node $j$ in the graph. I'm trying to find a
compact formula for the following (finite) power series, where ... | 5 | [
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Homework Help
Posted by granann on Monday, November 4, 2013 at 12:47am.
My uncle Samuel has $450,000 invested at 6.5%, and he plans to retire. He wants to withdraw $40,000 at the beginning of each year, starting immediately. How many years will it take to exhaust her
funds, run the account down to zero?
• Finance -... | 5 | [
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Subtraction
We can subtract one binary number from another by using the standard techniques adapted for decimal numbers (subtraction of each bit pair, right to left, "borrowing" as needed from bits to the left).
However, if we can leverage the already familiar (and easier) technique of binary addition to subtract, tha... | 4 | [
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0.0869140... | 12,787 | 12787 | |
Meta-analytic methods for pooling rates when follow-up duration varies: a case study
Abstract
Background
Meta-analysis can be used to pool rate measures across studies, but challenges arise when follow-up duration varies. Our objective was to compare different statistical approaches for pooling count
data of varying ... | 4 | [
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A Pascal's-triangle -like random process
up vote 7 down vote favorite
1
I was exploring Pascal's triangle on a cylinder when I encountered this puzzle-like problem. It is surely elementary, but perhaps weekend-entertaining.
Start with a permutation of $(1,2,3, \ldots, n)$, call it $(x_1,x_2,x_3,\ldots,x_n)$. Perform ... | 5 | [
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Homework Help
Posted by Leah on Monday, November 28, 2011 at 10:30pm.
A person pushes a 11.0 kg lawn mower at constant speed with a force of 76.0 N directed along the handle, which is at an angle of è = 41.0° to the horizontal. Calculate the normal force exerted
vertically upward on the mower by the ground. Calculate ... | 4 | [
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Kolmogorov Complexity - A Primer
Kolmogorov Complexity – A Primer
The Complexity of Things
Previously on this blog (quite a while ago), we’ve investigated some simple ideas of using randomness in artistic design (psychedelic art, and earlier randomized css designs), and measuring the
complexity of such constructions.... | 4 | [
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... | 12,791 | 12791 | |
Error-correcting properties of the SOLiD Exact Call Chemistry
Abstract
Background
The Exact Call Chemistry for the SOLiD Next-Generation Sequencing platform augments the two-base-encoding chemistry with an additional round of ligation, using an alternative set of probes, that
allows some mistakes made when reading th... | 4 | [
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Finding Focus and Directrix
Date: 04/12/2001 at 09:23:35
From: Brent
Subject: Parabola
I'm having a very hard time understanding how to find the focus and
directrix when given a formula for a parabola. I understand how to
identify the vertex and axis of symmetry.
Can you help, please?
Date: 04/14/2001 at 14:06:28... | 4 | [
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-0.0712890... | 12,793 | 12793 | |
A Mule and a Donkey
Date: 04/08/99 at 00:45:38
From: Justin Rittgasser
Subject: Euclid, "A mule and a donkey"
I am in Grade 5 and I am doing research on Euclid. I came across a
puzzle posted on another site. It is supposed to be a famous puzzle
attributed to Euclid. It goes: A mule and a donkey were talking. The
mu... | 4 | [
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0.014831542... | 12,794 | 12794 | |
Steig AVHRR Reconstruction from Satellite Data
Recent Comments
When nature gets mad… on The Power Behind Hurricanes an…
Jeff Id on In the Real World, Accuracy…
Kevin O'Neill on In the Real World, Accuracy…
omanuel on In the Real World, Accuracy…
omanuel on In the Real World, Accuracy…
dental plan on Anothe... | 4 | [
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Nonlocal nonlinear integrodifferential equations of fractional orders
Abstract
In this paper, Schauder fixed point theorem, Gelfand-Shilov principles combined with semigroup theory are used to prove the existence of mild and strong solutions for nonlinear fractional
integrodifferential equations of Sobolev type with n... | 5 | [
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Probability and Finding the Duration of an Event
Date: 04/18/2009 at 01:52:36
From: Fabian
Subject: Average Effect Uptime
I have come across a problem... and I have no idea how to approach it:
Event A happens constantly every 3 seconds, and each time Event A
happens there is a 15% chance to trigger Effect B. Effect... | 5 | [
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Homework Help
Posted by justin on Thursday, March 10, 2011 at 12:28am.
A 3.00 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 1.94 m in 1.70 s.
(a) Find the magnitude of the acceleration of the block.
(b) Find the coefficient of kinetic friction between the bl... | 4 | [
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Another hierarchical model
October 25th 2008, 03:25 AM #1
Newbie
Joined
Sep 2008
Posts
23
Another hierarchical model
Having some trouble with a hierarchical model. Can someone please check my first answer and help me to get on with the b-assignment?
Assume that Y denotes the number of bacteria per c... | 5 | [
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