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3 Greenâs Theorem 3.1 History of Greenâs Theorem Sometime around 1793, George Green was born [9]. If u is harmonic in Ω and u = g on @Ω, then u(x) = ¡ Z @Ω g(y) @G @â (x;y)dS(y): 4.2 Finding Greenâs Functions Finding a Greenâs function is diï¬cult. Vector fields, line integrals, and Green's Theorem Green'... | {} |
2015
04-16
# Manhattan Sort
Yet another sorting problem! In this one, you’re given a sequence S of N distinct integers and are asked to sort it with minimum cost using only one operation:
The Manhattan swap!
Let Si and Sj be two elements of the sequence at positions i and j respectively, applying the Manhattan swap o... | {} |
Looking for the solution of first order non-linear differential equation ($y ′+y^{2}=f(x)$) without knowing a particular solution.
I have been working on Riccati Equation. I have tried many different methods to find a closed form for the solution of first order non-linear differential equation ($y'+y^{2}=f(x)$) withou... | {} |
## PCSR Civil Service Exam Review Guide 9
PART I: MATH
A. Youtube Videos (All videos are in Taglish)
How to Solve Number Problems Mentally
How to Solve Word Number Problems
How to Solve Consecutive Number Problems
B. Articles. You can read the articles below.
How to Solve Number Word Problems
How to Solve Conse... | {} |
# Articles
• ### The Syntax Error That Killed Our Build for a Week.
December 12, 2015
Back in the day when I wrote in C and we used X11 with Motif, I was creating a new module based on an existing one, so I just copied and pasted the file from one xterm to another:
• ### Zero Downtime Migrations
August 15, 2015
F... | {} |
# Computing covariance matrix with historical data
I have been reading Active Portfolio Management by Grinold and Khan. In the chapter about risk, they mention,
"The third elementary model relies on historical variances and covariances. This procedure is neither robust nor reasonable. Historical models rely on data f... | {} |
# Deriving the risk-aversion coefficient
By considering the parametrised formulation of the mean-variance criterion by Markowitz, the risk aversion coefficient $$\lambda$$ can be derived as follow.
1. As suggested by Arrow and Pratt, given the utility function of the investor $$U(x)$$, $$\lambda$$ for a specific leve... | {} |
# How to normalize Euclidean distance over two vectors?
Why I want to normalize Euclidean distance
Currently, I am designing a ranking system, it weights between Euclidean distance and several other distances.
Euclidean distance behaves unbounded, that is, it outputs any $value > 0$ , while other metrics are within ... | {} |
# Fitting ideals of modules
In my previous post, I presented a proof of the existence portion of the structure theorem for finitely generated modules over a PID based on the Smith Normal Form of a matrix. In this post, I’d like to explain how the uniqueness portion of that theorem is actually a special case of a more ... | {} |
# Intersecting multiple data frames
I have to intersect multiple data frame to find common elements. For visualization purpose i can use upset Plot but it doesn;t return a object containing the intersection object .I tried jvenn but at max it can take six sets to intersect .
Im able to do the interesction but i would... | {} |
Latex not rendering sometimes
• Author
Posts
• #657169
shahabfaruqi
Member
I recently set up a blog on wordpress.com and want to insert latex codes in my posts. Sometimes it renders perfectly and sometimes not. Can someone help me? Take a look at my post here http://mathrant.wordpress.com/2011/07/19/eulers-famous-fo... | {} |
# Power series help
How do I multiply power series?
## Homework Statement
Find the power series:
$$e^x arctan(x)$$
## Homework Equations
$$e^x = 1 + x + \frac{x^2}{2!} + \frac{x^3}{3!}$$
$$arctan(x) = 0 + x - \frac{x^3}{3} + \frac{x^5}{5} - \frac{x^7}{7}$$
## The Attempt at a Solution
So do I multiply 1 by 0, x... | {} |
Measurement of prompt and nonprompt J/ψ production in pp and pPb collisions at √sNN=5.02TeV
Sirunyan, A M; Tumasyan, A; et al; Aarrestad, T K; Amsler, C; Caminada, L; Canelli, M F; De Cosa, A; Galloni, C; Hinzmann, A; Hreus, T; Kilminster, B; Ngadiuba, J; Pinna, D; Rauco, G; Robmann, P; Salerno, D; Seitz, C; Yang, Y; ... | {} |
# How do you find the vertical, horizontal and slant asymptotes of: f(x)=(x^2 + 1)/ (x-2)^2?
Nov 28, 2017
$V A : x = 2$
$H A : y = 1$
#### Explanation:
$f \left(x\right) = \frac{{x}^{2} + 1}{x - 2} ^ 2$
$f \left(x\right) = \frac{{x}^{2} + 1}{\left(x - 2\right) \left(x - 2\right)}$
*(https://socratic.org/precalculus... | {} |
Contents
# Contents
## Idea
What is called the Myers effect (Myers 99) in string theory is the claimed phenomenon that given $N$ D0-branes in a constant background RR field $F_4$ (the field strength associated with D2-brane charge) with, crucially, nonabelian effects included, then these D0-branes expand into a fuzz... | {} |
# Notation
• $$\mathbf{1}_A$$ is the indicator function on the set $$A$$. It is defined by $\mathbf{1}_A(x) = \begin{cases} 1 & \text{if x \in A}\\ 0 & \text{if x \not \in A} \end{cases}$ | {} |
TheInfoList
Population ecology is a sub-field of
ecology Ecology (from el, οἶκος, "house" and el, -λογία, label=none, "study of") is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms In biol ...
that deals with the dynamics of
species... | {} |
# Taylor Series Expansion
In financial markets participants would like to measure the effect of changes in the price of the bond due to changes in yield. This enables better risk management of financial assets as the impact of asset values is determinable.
Recomputing the value of the bond using the changed yield com... | {} |
# Array Search Algorithms
Suppose we have a large array and we need to find one of its elements. We need an algorithm to search the array for a particular value, usually called the key. If the elements of the array are not arranged in any particular order, the only way we can be sure to find the key, assuming it is in... | {} |
# Errors Starting Tomcat - "Unable to Locate the Server localhost:8080" Error
An "unable to locate server" error when trying to load a Web application in a browser.
Tomcat can take quite some time before fully loading, so first of all, make sure you've allowed at least 5 minutes for Tomcat to load before continuing t... | {} |
# 2013-07 Maximum number of points
Consider the unit sphere in $$\mathbb{R}^n$$. Find the maximum number of points on the sphere such that the (Euclidean) distance between any two of these points is larger than $$\sqrt 2$$.
GD Star Rating
Let $$P_1,P_2,\ldots,P_n$$ be n points in {(x,y): 0<x<1, 0<y<1} (n>1). Let $$r_... | {} |
# Go First Impressions
I knocked up a little project this weekend to help extract blog entries from a serendipity blog and format them up to work with the Hugo blogging engine. Partly because I’ve gotten sick of battling making python work smoothly on Windows, partly because Hugo is written in Go, and partly because I... | {} |
## Monday, November 3, 2014
### Halloween Trick-or-Treaters as a Poisson Process
Usually this time of the year I'm blogging about some Halloween-themed cookie recipe or jack-o-lanterns (and roasted pumpkin seeds yum!). This year I thought it would be fun to discuss the idea of a Poisson process and use Halloween as a... | {} |
• # question_answer A cubical block rests on an inclined plane of coefficient of friction $\mu =1/\sqrt{3}$. What should be the angle of inclination so that the block Just slides down the inclined plane? A) ${{30}^{o}}$ B) ${{60}^{o}}$ C) ${{45}^{o}}$ D) ${{90}^{o}}$
$\tan \,\,\theta =\m... | {} |
### AST_RESOLVE
Resolve a vector into two orthogonal components
#### Description:
This routine resolves a vector into two perpendicular components. The vector from point 1 to point 2 is used as the basis vector. The vector from point 1 to point 3 is resolved into components parallel and perpendicular to this basis v... | {} |
Home Uncategorized weighted graph adjacency matrix
Sink. This argument specifies whether to create a weighted graph from an adjacency matrix. We can traverse these nodes using the edges. graph: The graph to convert. (The format of your graph is not particularly convenient for use in networkx.) If it is NULL then a... | {} |
# izumi-lab /electra-small-japanese-fin-generator
YAML Metadata Error: "datasets" does not match any of the allowed types
# ELECTRA small Japanese finance generator
This is a ELECTRA model pretrained on texts in the Japanese language.
The codes for the pretraining are available at retarfi/language-pretraining.
## ... | {} |
## MWC '15 #1 P5: Love Guru
View as PDF
Points: 7 (partial)
Time limit: 1.0s
Memory limit: 256M
Author:
Problem type
Allowed languages
Ada, Assembly, Awk, Brain****, C, C#, C++, COBOL, CommonLisp, D, Dart, F#, Forth, Fortran, Go, Groovy, Haskell, Intercal, Java, JS, Kotlin, Lisp, Lua, Nim, ObjC, OCaml, Octave, Pasca... | {} |
# Socket timeout
Have you run into a problem that happens only once in a while, and you never seem to have enough information to figure it out? We all have. This is one such tale: except that it has a happier ending.
### EPIPE
We run Hadoop for its distributed file system, HDFS. We have a program that reads data ove... | {} |
#### Archived
This topic is now archived and is closed to further replies.
# editbox control/scrolling in winAPI
This topic is 5922 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
Kinda n00b-ish at winAPI, but is there anyway to simply appen... | {} |
## How do I efficiently implement a POVM using a fixed universal gate set and the ability to measure in the standard basis?
2
Let's say I am given a Hamiltonian
$$$$H = \sum_{i = 1}^{m} H_{i},$$$$
where $$H$$ acts on $$n$$-qubits, and each $$H_{i}$$ acts non-trivially on at most $$k$$ qubits. The eigenvalues of $$H... | {} |
#### Volume 16, issue 3 (2012)
Recent Issues
The Journal About the Journal Editorial Board Editorial Interests Editorial Procedure Subscriptions Submission Guidelines Submission Page Policies for Authors Ethics Statement ISSN (electronic): 1364-0380 ISSN (print): 1465-3060 Author Index To Appear Other MSP Journals
A... | {} |
Bush crickets have long, thin hind legs but jump and kick rapidly. The mechanisms underlying these fast movements were analysed by correlating the activity of femoral muscles in a hind leg with the movements of the legs and body captured in high-speed images.
A female Pholidoptera griseoaptera weighing 600 mg can jump... | {} |
# BH fall time = pi*m. What is external time?
1. Sep 19, 2011
### keithdow
Problem 17.3 in the "problem book in relativity and gravitation" states:
"Show that once a rocket ship crosses the gravitational radius (horizon) of a Schwarzschild black hole, it will reach r=0 in a proper time tau less than or equal to pi*... | {} |
/Type/Font << /Widths[300 500 800.01 755.21 800.01 750.01 300 400 400 500 750.01 300 350 300 500 Mathematical logic is … All books are in clear copy here, and all files are secure so don't worry about it. endobj 777.78 777.78 777.78 0 777.78 277.78 777.78 500 777.78 500 777.78 777.78 777.78 777.78 /Filter[/FlateDecode]... | {} |
# what is “module” in crossed module?
A crossed module consists of groups $$G$$ and $$H$$ with maps $$\alpha:H\rightarrow G$$ and $$\tau:G\rightarrow \text{Aut}(H)$$ satisfying following conditions:
1. $$\tau(\alpha(h))(h')=hh'h^{-1}$$ for all $$h,h'\in H$$.
2. $$\alpha(\tau(g)(h))=g\alpha(h)g^{-1}$$ for $$g\in G, h\... | {} |
Just select one of the options below to start upgrading. Aprenda Matemática, Artes, Programação de Computadores, Economia, Física, Química, Biologia, Medicina, Finanças, História e muito mais, gratuitamente. For that, you’ll need to use other resources. If it is larger than a divergent series, it diverges. View instruc... | {} |
# Math Help - Lin alg proofs help
1. ## Lin alg proofs help
Hi everyone!
I'm having trouble with these two linear algebra proofs, and help would be greatly appreciated.
1. let V and W be real vector spaces, and let L: V to W be a linear transformation such that Ker(L)=0v and Im(L)=W; let (v1 ,v2 ,v3) be a basis of ... | {} |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 19 Jun 2018, 01:46
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customize... | {} |
## Question
There are 8 distinct boxes and each box can hold any number of balls. A child having 4 identical balls randomly choose four boxes. Then another child having four balls, identical to the previous mentioned, again puts one ball in each of the arbitrary chosen four boxes. The probability that there are balls ... | {} |
• ### Power Consumption Of Vibrating Screen - Panola Mining
Vibrating Screen. 2. Using the eccentric blocks to generate strong vibrating force. 3. Screen cross-beam and box are connected by strong bolts, simple structure, convenient in maintenance. 4. Small amplitude, high frequency, large-inclination structure, high ... | {} |
## Cesàro averaging operators.(English)Zbl 1024.47014
K. F. Andersen proved in [Proc. R. Soc. Edinb., Sect. A 126, 617-624 (1996; Zbl 0865.47020)] that the generalized Cesàro operator defined by $C^{\gamma} f(z)= \sum_{n=0}^\infty \bigg({1\over A_n^{\gamma+1}}\sum_{k=0}^n A_{n-k}^{\gamma}a_k\bigg) z^n,$ where $$f(z)=\... | {} |
# Help Me With These Simple Formulae Questions?
## Hi all, first of all I'd like to thank you for your time. Please answer all three of these questions below in as much detail as you can also including detailed steps. Thank you! Question 7 & 8 Question 8 (Review Set)
Question "7" - see below:
#### Explanation:
For ... | {} |
# Derivation from Landau and Liffshitz, vol 6
Tags:
1. Oct 20, 2015
### Geofleur
I have starting working through section 134 of Landau and Lifshitz, vol 6, and it seems I have entered some kind of twilight zone where all my math/physics skills have left me
The derivation starts with the energy-momentum tensor for a... | {} |
# What are the first shots puppies get?
## How many shots do puppies need before going outside?
When can puppies go out for the first time? In their first 16-18 weeks, puppies typically go through three rounds of vaccinations. After each round of vaccinations, there is a five to seven day waiting period until they ar... | {} |
# Homework Help: Electromag applied to Capacitor
1. Feb 22, 2010
### likephysics
Electromagnetics applied to Capacitor
1. The problem statement, all variables and given/known data
consider the circular cylindrical parallel plate capacitor shown. The cap has height hc, diameter 2a, and its interior volume is filled ... | {} |
Students can Download Maths Chapter 4 Determinants Ex 4.6 Questions and Answers, Notes Pdf, 2nd PUC Maths Question Bank with Answers helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.
## Karnataka 2nd PUC Maths Question Bank Chapter 4 Determinants Ex 4.6
### 2nd... | {} |
# Remove Caption Reference First Page when appearing in LoF [duplicate]
I have a citation in a caption and in my biblography it lists the pages each reference is in. However it lists the page of my List of Figures (ix), but I'd like to remove that. Is there a way to remove part of the caption when putting it in the Lo... | {} |
# How long is nuclear power plant waste really dangerous?
by that_guy
Tags: dangerous, nuclear, plant, power, waste
P: 11 I know that some of the isotopes have extremely long half-lifes. However, isn't it true that generally speaking, a longer half life correlates to a lower rate of radioactivity? So wouldn't the mos... | {} |
# Delta Math Answers Probability
2: Investigating Probability (Answers) Question 1 a) The probability the uniform will have black shorts is 6 3 or 2 1. 4 out of 8 4. The study of Mathematics develops quantitative reasoning skills useful in everyday life as well as in many careers. Introduce and reinforce math topics w... | {} |
Letter | Published:
# Precision measurement of the weak charge of the proton
## Abstract
Large experimental programmes in the fields of nuclear and particle physics search for evidence of physics beyond that explained by current theories. The observation of the Higgs boson completed the set of particles predicted by... | {} |
# Material not rendering
Greetings: I'm new to Blender. I've done my due diligence by reviewing about 100 posts on similar rendering questions but, within the limitations of my understanding, I've not found a response that appears to answer my question.
In attempting to render an animation using eevee, I am unable to... | {} |
My watch list
my.bionity.com
VO2 max
Dr Chelsey Dempsey and Dr Jennifer Brierley describe VO2 max as the maximum capacity to transport and utilize oxygen during incremental exercise. (The derivation is V̇ - volume per time, O2 - oxygen, max - maximum). It is also called maximal oxygen consumption or maximal oxygen up... | {} |
albertel lon-capa-cvs@mail.lon-capa.org
Mon, 18 Oct 2004 18:44:12 -0000
albertel Mon Oct 18 14:44:12 2004 EDT
Modified files:
Log:
update prettypring and format descriptions as per 2998
--- loncom/html/adm/help/tex/all_functions_table.tex:1.3 Wed Feb 18 18:00:20 2004
+++ loncom/html/adm/help/tex/all_functions_table... | {} |
Conversion from cartesian to fractional coordinates
P: 416 It seems like you're doing a lot more work than necessary. You want something like: $$\vec{R} = x_1 \vec{a}_1 + x_2 \vec{a}_2 + x_3 \vec{a}_3$$ which can be written in matrix form as $$\vec{R} = A \cdot \left( \begin{array}{c} x_1 \\ x_2 \\ x_3 \end{array}\ri... | {} |
English . Español .
The application of Appropriate Technology
# Part 5: Magnetic Materials
Sections:
### 5.1 The Magnetisation Curve
We have already shown that for an air-cored solenoid (section 4.3):
$B=\dfrac{\Phi }{A},\quad H=\dfrac{IN}{\mathit{l}}\quad \text{and}\quad \dfrac{B}{H}=\mu_0$
A graph of the ma... | {} |
# Roots of a cubic polynomial
Number Theory Level pending
Consider the cubic polynomial
$\large p(x)=ax^3+ bx^2 + cx + d$
where $$a$$, $$b$$, $$c$$, and $$d$$ are integers such that $$ad$$ is odd and $$bc$$ is even and not all roots of $$p(x)$$ can be rational.
Is this possible? If yes, prove it. If no, why?
× | {} |
# His Girl Friday Summary and Analysis of Part 4: The Pressroom
Summary
One of the journalists informs the mayor and Pete that the governor has issued a statement saying that there will be an uprising the following day, to which the mayor responds, “anything the governor says is a tissue of lies.” The journalist cont... | {} |
# Torque and inertia question
1. Dec 3, 2005
### faculaganymede
A thin uniform rod of mass M and length L is positioned vertically above an anchored frictionless pivot point and then allowed to fall to the ground. With what speed does the free end of the rod strike the ground?
My answer is off by sqrt(2) from the co... | {} |
# Parsing external DTDs with Spring 4.x Jaxb2Marshaller
Having recently upgraded a fairly sizeable Spring project to Spring 4.1.7, I uncovered an issue in which, after the upgrade, a class that talks to an external XML API was failing with the following stack trace:
As with most exceptions thrown by large libraries s... | {} |
# Equating two lists, element by element
Say you have two lists:
listA = {a, b, c}
listB = {d, e, f}
How would you produce a listC that equates each of the two's elements, ie.
listC = {a == d, b == e, c == f} ?
I know, it's very easy, but somehow I've already spent an slightly embarrassing amount of time on this.... | {} |
Previous | Next --- Slide 19 of 71
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ericchan
Why is the standard sampling frequency 44.1 KHz?
zyx
Interesting question. Wikipedia seems to give one simple reason: human hearing range is around 20Hz ~ 20kHz, so by the Nyquist–Shannon theorem (mentioned later in class), the sampling frequency... | {} |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 17 Jan 2019, 00:59
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customize... | {} |
# Band MO of Sodium Filling of electrons confusion
I wanted to ask a question about metallic bond - band electron theory.
Consider the diagram of Sodium below:
Circled are orbitals both containing $$2$$ electrons each which combine using LCAO to give a set of bonding and antibonding electrons.
However, the $$4$$ el... | {} |
Home OALib Journal OALib PrePrints Submit Ranking News My Lib FAQ About Us Follow Us+
Title Keywords Abstract Author All
Search Results: 1 - 10 of 100 matches for " "
Page 1 /100 Display every page 5 10 20 Item
Physics , 2005, DOI: 10.1111/j.1365-2966.2005.09629.x Abstract: In this paper, we discuss general relativi... | {} |
Surender Raja - 1 year ago 85
Scala Question
# Scala Currying syntax explanation
I am new to scala .
I want to understand the syntax of this below code
object PlainSimple {
def main(args:Array[String])
{
println(m(3))
}
{
y=>y+x
}
}
My question is where are we saying that the add function is returning another ... | {} |
Contents
# Strategy Library
## Intraday Arbitrage Between Index ETFs
### Abstract
In this tutorial, we implement an intraday arbitrage strategy that capitalizes on deviations between two closely correlated index ETFs. Even though at times both ETFs may hold different constituents and different weights of securities... | {} |
## superdry Group Title what is 3/5 x 1/7 one year ago one year ago
• This Question is Open
1. jiteshmeghwal9 Group Title
$\dfrac{3 \times1}{5 \times 7}=?$
2. kugler97 Group Title
it is 3/35
3. kugler97 Group Title
i am pretty sure youwould take 3 over 5 then multiply that by 5 over 7 and thtn you get 3/35!! ((:
... | {} |
Question
# A single constant force F= (3i+5j) N acts ona 4.00-kg particle.
Other
A single constant force $$F= (3i+5j)$$ N acts ona 4.00-kg particle. (a) Calculate the work done by this forceif the particle moves from the origin to the point having the vector position $$r = (2i-3j) m$$. Does thisresult depend on the ... | {} |
Limited access
Suppose that you initially calculated a correlation statistic for random variables $Y$ and $X$, $\rho = 0.25$. Then, you realize that you omitted an observation:
$$(y=5,\ x=-5)$$
After including this observation and calculating the standard deviations for the two random variables, you find that those ... | {} |
# Lesson 3
The Unit Circle (Part 1)
### Lesson Narrative
The goal of this lesson is for students to begin their exploration of the unit circle, defined as a circle of radius 1 centered at the origin, which they continue in the following lesson and use throughout the remainder of the unit. They focus first on the sym... | {} |
#### Chapter 7 Differential Calculus
Section 7.1 Derivative of a Function
# 7.1.1 Introduction
A family is going on holiday by car. The car is moving through roadworks with a velocity of $60 \mathrm{km}\left[\right]/\mathrm{h}$. The sign at the end of the roadworks says that the speed limit is, as of now, $120 \math... | {} |
# What is a delta potential?
I think that a helpful way to think of delta potential (and maybe on the delta function in general) is through a limit process: we start with a finite square well of width $$a$$ and depth $$U=\lambda/a$$, and ask ourselves "what happens when we take $$a\to 0^+$$?" This can happen when we a... | {} |
# Why can induction cooktops not use aluminium or copper utensils?
Why can induction cooktops not use aluminium or copper utensils, when both materials are conductors and hence conducive to eddy currents, which are used by these devices to cook?
Edit 1 (10 Nov 2016): Following argument is common to all the answers in... | {} |
## Filters
Q
Engineering
1 week, 4 days ago
# Can someone explain If an equilateral triangle, having vertexat the (2,-1), has a side along the line, x+y=2, then the area (in sq. units) of this triangle is :
If an equilateral triangle, having vertex at the (2,-1), has a side along the line, x+y=2, then the area (in s... | {} |
# Similarity of triangles in argand plane
• December 14th 2010, 06:11 AM
kalyanram
Similarity of triangles in argand plane
Given $A(\alpha), B(\beta), C(\gamma)$ and $A'(\alpha'), B'(\beta'), C'(\gamma')$ are the vertices of $\triangle ABC$ and $\triangle A'B'C'$ respectively then show that the triangles are directly ... | {} |
Find all School-related info fast with the new School-Specific MBA Forum
It is currently 24 May 2016, 05:09
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
C... | {} |
# Change hint color
hi,
could someone change hint color? i have a textbox in a blue background and it is almost invisible
thx
Hi there,
Try this extension and use the “ChangeTextboxColour” block:
1 Like
it’s incredible this extension, didn’t know there is this functionality…
however, thanks!!
3 Likes
HOW? I unab... | {} |
# Proof of formula to convert from parallel to series impedance
So, I tried to find a proof to the formulas to convert from parallel to series reactive circuit, which I found in the ARRL Handbook:
$R_s=\frac{R_pX_p^2}{R_p^2+X_p^2}$ and $X_s=\frac{R_p^2X_p}{R_p^2+X_p^2}$
where $R_s$ and $X_s$ are the series resistance ... | {} |
## meet the black heart of Messier
Posted in pictures, Travel, University life with tags , , , , , , , , , on April 10, 2019 by xi'an
## trip to München
Posted in Mountains, Statistics, Travel, University life, Wines with tags , , , , , , , , , , , , , on October 19, 2015 by xi'an
While my train ride to the fabulou... | {} |
# Equilibrium of Cylinder with two liquids at either side
## Homework Statement
(Please refer to the attachment given)
In the figure shown, the heavy cylinder (radius R) resting on a smooth surface separates two liquids of densities $$2\rho$$ and $$3\rho$$ . The height h for the equilibrium of cylinder must be:
$$a... | {} |
# Center of mass
## Homework Statement
Find the center of mass of the triangle with vertices at (0,0), (6,6) and (-6,6) if the density at (x,y) is equal to y.
## The Attempt at a Solution
I am having trouble with these centroid/center of mass problems, and I can't even figure out the bounds for sure. Any help/tips?... | {} |
Numerical solution of an advection equation, $\frac{\partial P}{\partial t}+\frac{\partial}{\partial x}\left(P^{5/3}\right)=0$, with finite volume
I was trying to solve the following equation numerically, $$\frac{\partial P}{\partial t}+\frac{\partial}{\partial x}\left(P^{5/3}\right)=0$$ I adopted the Godunov approach... | {} |
## anonymous 5 years ago four less than a quotient of a number and 6 is 3. Find the number
1. anonymous
42?
2. anonymous
$4 -{x \over 6} = 3$
3. anonymous
-x/6 = 3-4 -x/6 = -1 x = 6
4. anonymous
thanks | {} |
2 added 384 characters in body; deleted 201 characters in body
A neat way to show that a set of primes has zero density (within the primes) is to use the following form of the Green-Tao theorem:
Any set of positive density within the primes has arbitrarily long arithmetic progressions.
In particular, any set of prim... | {} |
# Problem 1 Show thatsin(x)le ~12 dxis convergent_
###### Question:
Problem 1 Show that sin(x)le ~12 dx is convergent_
#### Similar Solved Questions
##### 15. The means, standard deviations, and covariance for random variables X, Y. and Z are given...
15. The means, standard deviations, and covariance for random va... | {} |
# O(N) sigma model renormalization
Does anyone know, is a model with lagrangian $\mathcal{L} = \frac{(\partial_{\mu}\phi_a)^2}{2}-\frac{m^2 \phi_a^2}{2}-\frac{\lambda}{8N}(\phi_a \, \phi_a)^2$ renormalizable? I'm using BPHZ scheme and everything is OK in one loop. But it seems to me (may be I'm mistaken) that the sche... | {} |
# Raw curve25519 public key points
I'm trying to understand curve25519, and ECC public points.
I'm playing with Minisign, to better understand the fundamentals of ECC.
Minisign uses curve25519 and outputs public keys as base64 encoded strings in the following format:
base64(<signature_algorithm> || <key_id> || <pub... | {} |
# how to compute the probability ditsribution of the average of n iid random variables
It has been a long time since I took a probability class, and I'm sure that this site is for any level of mathematics...
Given $n$ iid random variables, I want to compute the pdf of their average. How can I do that? I know I can do... | {} |
# 8.6: pH Calculations
One thing that you should notice about the numbers in the previous examples is that they are very small. In general, chemists find that working with large negative exponents like these (very small numbers) is cumbersome. To simplify the process, calculations involving hydronium ion concentration... | {} |
# ATLAS Conference Notes
Ostatnio dodane:
2021-09-15
16:25
Search for flavor-changing neutral-current couplings between the top quark and the Z boson with LHC Run2 proton-proton collisions at $\sqrt{s} = 13\,\text{TeV}$ with the ATLAS detector A search for flavor-changing neutral-current couplings between a top quark... | {} |
# Fuel efficiency
Fuel efficiency is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per application, and this spectrum... | {} |
Horm Metab Res 2010; 42: S3-S36
DOI: 10.1055/s-0029-1240928
Guidelines
© Georg Thieme Verlag KG Stuttgart · New York
# A European Evidence-Based Guideline for the Prevention of Type 2 Diabetes
B. Paulweber1 , P. Valensi2 , J. Lindström3 , N. M. Lalic4 , C. J. Greaves5 , M. McKee6 , K. Kissimova-Skarbek7 , S. Liatis8... | {} |
# Differentiability Of Multivariable Function
$$f(x,y)= \begin{cases} x\sin(1/x) + y\sin(1/y), &xy \neq 0 \\ x \sin(1/x), &y=0, x \neq 0 \\ y \sin(1/y), &x=0, y\neq 0 \\ 0, &x=y=0. \end{cases}$$ I have to check differentiability at origin , i have seen that partial derivatives at $(0,0)$ do not exist and so it is not ... | {} |
# Computational Complexity of Space-Bounded Real Numbers
In this work we study the space complexity of computable real numbers represented by fast convergent Cauchy sequences. We show the existence of families of trascendental numbers which are logspace computable, as opposed to algebraic irrational numbers which seem... | {} |
USF Home > College of Arts and Sciences > Department of Mathematics & Statistics
Mathematics & Statistics
# Colloquia — Fall 2004
## Wednesday, December 8, 2004
Title
Speaker
Time
Place
Minimal Generalized Interpolating Projections and the $$P$$-lambda Problem
Bruce Chalmers
University of California-Riverside
3:3... | {} |
ISSN 1000-1239 CN 11-1777/TP
• Paper •
### Operating and Analyzing the Reproducibility of Empty Marking Nets
Ye Jianhong1,2, Song Wen2, and Sun Shixin3
1. 1(School of Computer Science & Technology, Huaqiao University, Quanzhou, Fujian 362021) 2(School of Mathematics & Computer Engineering, Xihua University, Chengdu... | {} |
# C Code Generation for a MATLAB Kalman Filtering Algorithm
This example shows how to generate C code for a MATLAB® Kalman filter function, `kalmanfilter`, which estimates the position of a moving object based on past noisy measurements. It also shows how to generate a MEX function for this MATLAB code to increase the... | {} |
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# maximal factorizations of the finite simple groups and their automorphism groups
• ·
Written in English
### Subjects:
• Finite simple groups.,
• Maximal subgroups.,
• Factorization (Mathematics),
• Automorphisms.
## Book details:
Edition Notes
Classifications The Physical Object Statement M.W. Liebeck, ... | {} |
# Cristian Gatu
#### lmSubsets
cran
99.99th
Percentile
Exact and approximation algorithms for variable-subset selection in ordinary linear regression models. Either compute all submodels with the lowest residual sum of squares, or determine the single-best submodel according to a pre-determined statistical criterio... | {} |
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