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# Ring with subring isomorphic to $\mathbb{Z}$ and subring isomorphic to $\mathbb{Z}_{3}$
This is a homework question that I'm either not thinking through all the way, or I'm overcomplicating the issue. It reads
Give an example of a ring that contains a subring isomorphic to $\mathbb{Z}$ and a subring isomorphic to $... | {} |
184_notes:defining_current
In the last few pages of notes, we have talked about how the surface charges are arranged to create a constant electric field in the wire. This electric field is responsible for pushing the electrons through the wire from one side of the battery to the other - creating a flow of electrons, w... | {} |
# Probability of finding a particle in a superposition
In QM, is it possible to ask what the probability of finding a particle in a superposition will be?
Once a particle is in a superposition, it is possible to find out the probability that it will be in a particular state, and using the density matrix, it is also p... | {} |
## Circuit Simulation Part IV: Nonlinear circuits and implementation
In the last part we presented the major part of the UI, but we still hadn’t talked about the implementation of solving. In this post we will talk about how to actually solve non-linear equations both in theory and in implementation.
## Non-linear c... | {} |
# zbMATH — the first resource for mathematics
The Rossby wave extra invariant in the physical space. (English) Zbl 1160.37392
Summary: It was found out in 1991 that the Fourier space dynamics of Rossby waves possesses an extra positive-definite quadratic invariant, in addition to the energy and enstrophy. This invaria... | {} |
# Windows Remote Desktop
## Accessing Windows from Linux
To allow access to Windows applications from within Linux, SNS has created a 'wrapper script', /usr/local/share/bin/windows, that calls the rdesktop command with all the necessary settings to connect to a Windows Remote Desktop server. /usr/local/share/bin is i... | {} |
Libreoffice Calc - relative link to Sheet in formula
So I want something like =A1+{'CurrentSheet'+1}.A1 and =A1+{'CurrentSheet'-2}.A1 but can't find how to do this. Is this feature exist in LibreOffice or OpenOffice? | {} |
# Declaratively constructing cons from lambdas
cons should couple 2 items.
cons :: a -> b -> f a b
cons a b = undefined
Next we talk about its interface. head should return the first item. tail should return second item.
head :: f a b -> a
tail :: f a b -> b
tail _ = b
Our fictional language is a subset of hask... | {} |
A uniform estimate for the density of rational points on quadrics
作者： Félicien Comtat 刊名： Journal de théorie des nombres de Bordeaux, 2019, Vol.31 (1), pp.243-253 来源数据库： The Center for Diffusion of Academic Mathematical Journals DOI： 10.5802/jtnb.1078 关键词： Uniform asymptotic estimates; Quadratic forms; 原始语种摘要： This p... | {} |
# Is it a known phenomenon for the variance of a component (GMM) to increase without stopping?
I know it can happen for it to decrease dramatically as it overfits on a single datapoint. But I've never read about a component "taking everything over". See the following images (circles are stddevs). Could this be (relati... | {} |
# Journal of the Ramanujan Mathematical Society
Volume 31, Issue 1, March 2016 pp. 31–61.
Selmer groups as flat cohomology groups
Authors: Kestutis Cesnavicius
Author institution:Department of Mathematics, University of California, Berkeley, CA 94720-3840, USA
Summary: Given a prime number p, Bloch and Kato show... | {} |
t-SNE with mixed continuous and binary variables
I am currently investigating the visualisation of high-dimensional data using t-SNE. I have some data with mixed binary and continuous variables and the data appears to cluster the binary data much too readily. Of course this is expected for scaled (between 0 and 1) dat... | {} |
# Graphemes
Here’s something amusing I ran across in the glossary of Programming Perl:
grapheme A graphene is an allotrope of carbon arranged in a hexagonal crystal lattice one atom thick. Grapheme, or more fully, a grapheme cluster string is a single user-visible character, which in turn may be several characters (c... | {} |
# What is the derivative of ln( secx+tanx)?
$f ' \left(x\right) = \sec x$
$f ' \left(x\right) = \frac{1}{\sec x + \tan x} \cdot \left(\sec x \tan x + {\sec}^{2} x\right)$
$f ' \left(x\right) = \frac{1}{\sec x + \tan x} \cdot \sec x \left(\tan x + \sec x\right)$
$f ' \left(x\right) = \sec x$ | {} |
## ENGIE greenlights Australian renewable hydrogen project with Yara
##### 18 September 2022
ENGIE has taken the Final Investment Decision in the development of one of the world’s first industrial-scale renewable hydrogen projects, to be located in the Pilbara region of Western Australia.
Scheduled for completion in... | {} |
Publications: Abstract
# Random Oracles With(out) Programmability
## Marc Fischlin and Anja Lehmann and Thomas Ristenpart and Thomas Shrimpton and Martijn Stam and Stefano Tessaro
This paper investigates the Random Oracle Model (ROM) feature known as \textit{programmability}, which allows security reductions in the... | {} |
Black Lives Matter. Please consider donating to Black Girls Code today.
# Latex typesetting for axis title not working with Matlab
I know this feature used to work. However, now when I include latex in the title I get a plot with no titles.
Any ideas?
I am using:
Matlab R2017a (9.2.0.538062)
64-bit (maci64)
and
M... | {} |
# Arrhenius Acids and Bases
### Learning Objectives
• Define Arrhenius acid.
• Give examples of Arrhenius acids.
• Describe the hydronium ion.
• Define Arrhenius base.
• Give examples of Arrhenius bases.
## Arrhenius Acids
### Don’t breathe too deeply.
Venus is the planet nearest to us, but has a very different an... | {} |
Compute $$N^2$$, the square of the buoyancy frequency for a seawater profile.
swN2(
pressure,
sigmaTheta = NULL,
derivs,
df,
debug = getOption("oceDebug"),
...
)
## Arguments
pressure
either pressure (dbar) (in which case sigmaTheta must be provided) or an object of class ctd object (in which case sigmaTheta is inf... | {} |
# What is the angular momentum of a rod with a mass of 15 kg and length of 7 m that is spinning around its center at 19 Hz?
Jan 16, 2018
The angular momentum is $= 7312.1 k g {m}^{2} {s}^{-} 1$
#### Explanation:
$\text{Angular momentium" (kgm^2s^-1)="Moment of inertia"(kgm^2)xx"Angular velocity } \left(r a {\mathrm... | {} |
+0
# help
0
224
2
Let $$\alpha$$ and $$\beta$$ be complex numbers such that $$\alpha + \beta$$ and $$i(\alpha - 2 \beta)$$ are both positive real numbers. If $$\beta = 3 + 2i,$$ compute $$\alpha.$$
Aug 29, 2019
#1
+109737
+4
$$\beta=3+2i\\ \alpha+\beta=k \qquad k\in R\\ so\\ \alpha=n-2i\\ \alpha-2\beta=wi \qquad ... | {} |
Mathematical Sciences Faculty Research
Article
2-21-2018
Abstract
This article generalizes joint work of the first author and I. Swanson to the s-multiplicity recently introduced by the second author. For k a field and X=[xi,j] a m×n-matrix of variables, we utilize Gröbner bases to give a closed form the length λ(k... | {} |
127.0.0.1 mylinuxsvr localhost.localhost.localdomain localhost
The /etc/hosts file is just a list of IP addresses and their corresponding server names. Your server will typically check this file before referencing DNS. If the name is found with a corresponding IP address then DNS won't be queried at all. Unfortun... | {} |
Trying to power 100 Arduinos from single power line
I'm trying to power up to 100 Arduinos that will be spread across a 25m wall using a single power line.
The idea is each Arduino will have a few a few buttons, leds & an oled screen and will all communicate to a master server using rs485.
====[A0]====[A1]====[A2]==... | {} |
# Determine the coupling factor between two coils each having self-inductance of 40 mH and the mutual inductance between them is 40 mH.
This question was previously asked in
SSC JE EE Previous Paper 3 (Held on: 27 Jan 2018 Evening)
View all SSC JE EE Papers >
1. 2
2. 0.5
3. 1
4. 0.75
Option 3 : 1
Free
General Awarene... | {} |
| Home | E-Submission | Sitemap | Login | Contact Us |
J. Korean Ceram. Soc. > Volume 20(1); 1983 > Article
Journal of the Korean Ceramic Society 1983;20(1): 37.
불소운모 합성에 따른 $K_2O-MgO-Al_2O_3-SiO_2-MgF_2$계의 연구 송경근, 오근호, 김대웅1 한양대학교 무기재료공학과1금강고려중앙연구소 The Study of $K_2O-MgO-Al_2O_3-SiO_2-MgF_2$ System in Fluro-phlogopi... | {} |
mersenneforum.org Incorrect guess based on limited data: Number of Primes 6k-1 > Number of Primes 6k+1
Register FAQ Search Today's Posts Mark Forums Read
2021-08-27, 05:28 #34 LaurV Romulan Interpreter "name field" Jun 2011 Thailand 265016 Posts With a good eps viewer (I use acdSee) this pari liner will generate... | {} |
How should I interpret this Mummer output files?
1
3
Entering edit mode
8.3 years ago
I have this output file from mummer, which shows mulpitle 100% Identity Ref/Query. My reference is the gene DNMT1 (specie A) and my query is a bunch of scaffold for a specie that hasn't been mapped yet to the chromosome level (closel... | {} |
# The closure of cyclic modules under direct sums and direct summands
Cohen and Kaplansky have proven that a commutative ring $R$ has the property
C: Every $R$-module is a direct sum of cyclic $R$-modules.
if and only if $R$ is an Artinian principal ideal ring. Can we classify those commutative rings $R$ with the fo... | {} |
# TIFR2015-B-7
1k views
Let $a, b, c$ be regular expressions. Which of the following identities is correct?
1. $(a + b)^{*} = a^{*}b^{*}$
2. $a(b + c) = ab + c$
3. $(a + b)^{*} = a^{*} + b^{*}$
4. $(ab + a)^{*}a = a(ba + a)^{*}$
5. None of the above.
edited
1. $(a+b)^* = \{$ any strings of over $\{a,b\} \}$
$a^*b^... | {} |
Fukui functions shows the level of reactivity of different places in a complex molecule. They can be easily plotted with GabEdit software but it has a pure functions of chemical drawing. PyMol is a powerful drawing instrument and here we show how to plot Fukui function with PyMOL after two calculation steps with FireFl... | {} |
# Knowledge base: Adam Mickiewicz University
Back
## Structural features and tribo-mechanical properties of TiAlBSiN nanocomposite coatings
### Oleksandr Pshyk
#### Abstract
This thesis explores structural features and physical properties of the TiAlSiBN-based coatings with the amorphous structure and gradient nan... | {} |
# Math Help - Derivative HELP!!
1. ## Derivative HELP!!
show that the curve y=6x3+5x-3 has no tangent line with slope 4.
2. ## Re: Derivative HELP!!
Take the derivative, equate to 4, and what do you find?
3. ## Re: Derivative HELP!!
if you do y'(4) it equals 293 so is that the proof?
4. ## Re: Derivative HELP!!
... | {} |
# Thread: Maple - solving the unknown t
1. ## Maple - solving the unknown t
How can I solve this in Maple.
24000:=((1/12*(350-t)*(350-t)^3)-(Pi/64*(t*(25/10))^4))/(175-t);
I tried solve(...) but it didn't work.
Could anyone help me?
Kind regards,
Johan
2. ## Re: Maple - solving the unknown t
Code:
solve({24000 = ... | {} |
Provided by: texlive-binaries_2019.20190605.51237-3build2_amd64
#### NAME
``` pdftex - PDF output from TeX
```
#### SYNOPSIS
``` pdftex [options] [&format] [file|\commands]
```
#### DESCRIPTION
``` Run the pdfTeX typesetter on file, usually creating file.pdf. If the file argument has no
exten... | {} |
# Circle Calculation
### Objective
To get more practice with using functions.
Your task is to write a program that will read in the radius of a circle, and print out the diameter, circumference and area.
Your program should use a separate function for doing each calculation, and should use parameters and return val... | {} |
# 1.3: Probability
Skills to Develop
• Simple rules about adding and multiplying probabilities
The basic idea of a statistical test is to identify a null hypothesis, collect some data, then estimate the probability of getting the observed data if the null hypothesis were true. If the probability of getting a result ... | {} |
• ### Binary Embedding: Fundamental Limits and Fast Algorithm(1502.05746)
Jan. 23, 2019 cs.IT, math.IT, cs.DS
Binary embedding is a nonlinear dimension reduction methodology where high dimensional data are embedded into the Hamming cube while preserving the structure of the original space. Specifically, for an arbitra... | {} |
# Solving System of Ordinary Differential Equations (ODEs)
When I input the following code to solve this system of equations (I specifically want to look at 0<d<1, 0<q<1, 0<t), I get the error:
'DSolve: The function y[t] was specified without dependence on all the independent variables. Each function must depend on a... | {} |
# When there is an increase in temperature, how is the pH of the ocean affected? (Question is related to ocean acidification)
This is my current understanding: Ocean acidification is the result of atmospheric $$\ce{CO2}$$ dissolving in the ocean's water. When this occurs the $$\mathrm{pH}$$ of the ocean decreases (fro... | {} |
# Ratio, Proportion and Variation for CAT Exam
The concept of ratio, proportion and variation involves change. To compare two quantities we use ratios. Statements of equality involving ratios are called proportions. And variations are problems written as proportions.
• The comparison of two numbers or quantities by d... | {} |
C) ion-dipole force: 11) Choose the molecule or compound that exhibits dispersion forces as its strongest intermolecular force. Hexane (C6H14) Diethyl ether (CH3CH2OCH2CH3) Toluene. What is the mole percentage of acetone in this solution? a) 3. 5 The Kinetic-Molecular Theory. They don't actually change the compound, th... | {} |
Primitive matrices of special exponents and their linear preservers
Professor Seok-Zun Song
Department of Mathematics, Jeju University, Korea
An n × n matrix A is said to be primitive if Ak has all nonzero entries for some positive integer k. A primitive matrix A is said to have exponent k if Ak has all nonzero entri... | {} |
# Tree diagram (probability theory)
In probability theory, a tree diagram may be used to represent a probability space.
Tree diagram for events ${\displaystyle A}$ and ${\displaystyle B}$.
Tree diagrams may represent a series of independent events (such as a set of coin flips) or conditional probabilities (such as d... | {} |
continuous distribution function [closed]
Let X be a continuous random variable with a continuous distribution function $F$ that is strictly increasing where it is not $0$ or $1$. Show that the random variable $Y = F(X)$ is uniformly distributed on the interval $[0, 1]$.
-
Homework is not a stand alone tag on this si... | {} |
/ hep-ex arXiv:1705.06853
Evidence for $e^{+}e^{-} \to \gamma\eta_c(1S)$ at center-of-mass energies between 4.01 and 4.60 GeV
Pages: 8
Abstract: We present first evidence for the process $e^+e^-\to \gamma\eta_c(1S)$ at six center-of-mass energies between 4.01 and 4.60~GeV using data collected by the BESIII experimen... | {} |
# Tag Archives: division ring
## Local Rings of Weak Dimension Zero are Division
Let $R$ be a ring and $M$ be an $R$-module. The flat dimension of $M$ is the infimum over all lengths of flat resolutions of $M$. Usually, the flat dimension of $M$ is denoted by $\mathrm{fd}_R(M)$. For example, $\mathrm{fd}_{\mathbb{Z}}... | {} |
1
JEE Main 2021 (Online) 26th February Morning Shift
+4
-1
The rate of growth of bacteria in a culture is proportional to the number of bacteria present and the bacteria count is 1000 at initial time t = 0. The number of bacteria is increased by 20% in 2 hours. If the population of bacteria is 2000 after $${k \over {{{... | {} |
digitalmars.D - Structs and Variadic Functions
Xinok <xknnet gmail.com> writes:
I think combining structs with variadic functions can introduce some new
interesting possibilities.
struct SS{
int a, b, c;
}
static SS obj = {10, 20, 30}; // Full initalization
static SS obj = {a : 15, c : 35}; // Partial initalization
... | {} |
## SectionThe Vertex of a Parabola
The graph of a quadratic function $f(x) = ax^2 + bx + c$ is called a parabola. Some parabolas are shown in Figure289.
All these parabolas share certain features. The graph has either a highest point (if the parabola opens downward, as in Figure289a) or a lowest point (if the parabo... | {} |
# Divisible by this year??? (Part 2: Factorials)
$$n!$$ or $$n$$-factorial is the product of all integers from $$1$$ up to $$n$$ $$(n! = 1 \times 2 \times 3 \times ... \times n)$$. Find the maximum integral value of $$k$$ such that $$2014^k$$ divides $$2014!$$
You may also try this problem: Divisible by this year???
... | {} |
## Thinking Mathematically (6th Edition)
Published by Pearson
# Chapter 1 - Problem Solving and Critical Thinking - 1.1 Inductive and Deductive Reasoning - Exercise Set 1.1: 38
#### Answer
($\frac{-4}{7}$,$\frac{16}{49}$)
#### Work Step by Step
($\frac{2}{3}$,$\frac{4}{9}$),($\frac{1}{5}$,$\frac{1}{25}$),(7,49),(... | {} |
# Tamari Interval-posets¶
This module implements Tamari interval-posets: combinatorial objects which represent intervals of the Tamari order. They have been introduced in [PCh2013] and allow for many combinatorial operations on Tamari intervals. In particular, they are linked to DyckWords and BinaryTrees. An introduct... | {} |
## Sunday, April 06, 2014
### Roger Penrose continues his weird anti-ïnflation jihad
...as well as anti-quantum, anti-string...
For more than 30 years, Roger Penrose would be offering many irrational and wrong criticisms of the cosmic inflation. He didn't stop after the publication of the discovery of primordial gra... | {} |
Note: An Author Correction to this article was published on May 18, 2021.
Despite attention from the healthcare system and governmental agencies, hospital-onset Clostridioides difficile infection (HO-CDI) has continued to be a major source of morbidity and mortality in both United States of America (USA) and internati... | {} |
NZ Level 7 (NZC) Level 2 (NCEA)
Relating gradient and original functions (investigation) - including velocity time to position time
Lesson
## Introduction
Consider an object moving along a path. Maybe it is a car on a road network or an insect looking for food or a comet in the solar system. We might track the positi... | {} |
# Scalar theories of gravitation
(Redirected from Scalar Gravity)
Scalar theories of gravitation are field theories of gravitation in which the gravitational field is described using a scalar field, which is required to satisfy some field equation.
Note: This article focuses on relativistic classical field theories ... | {} |
Hello, world! My starting this blog has been long overdue. I thought I’d ease myself into it with something easy and uncontroversial, so here’s my take on linear regression. We start with the standard (frequentist) maximum likelihood approach, and show that Gaussian noise induces the familiar least-squares result, then... | {} |
Question
# If $$f(x)$$ be a continuously increasing function satisfying the condition that $$f(x)=\dfrac{1}{3}\left[f(x+6)+\dfrac{6}{f(x+7)}\right]$$ and $$f(x) \ge 0$$ for all $$x\ \epsilon \ \ R$$. If $$\displaystyle \lim _{ x\rightarrow \infty }{ f\left( x \right) =\sqrt { m } }$$ then value of $$m$$ is
A
3
B
4
C
... | {} |
When an inductor is connected with a voltage source we get equal and opposite voltage on inductor against the source voltage. That equal and opposite voltage gradually decreases with time which allows the current(caused by the source voltage) to gradually rise.
My question is what makes the equal and opposite voltage ... | {} |
# Inverse trigonometry question
Tags:
1. May 22, 2016
### takando12
1. The problem statement, all variables and given/known data
If 1/2<=x<=1
, then cos-1[ x/2 + (√(3-3x2))/2] + cos-1 x is equal to?
2. Relevant equations
3. The attempt at a solution
Substituting x=cosθ
= cos-1(cosθ) + cos-1 [ cos(θ)/2 + (√(3(1-cos... | {} |
The sum of a Fourier Series
Homework Statement
The function g(x) is defined as follows:
$$g(x) = \left\{ \begin{array}{rcl} {-\pi e^x} & \mbox{for} & -\pi < x < 0 \\ {\pi e^{ -x}} & \mbox{for} & 0 < x < \pi \end{array}\right.$$
And the Fourier series for g(x) is as follows:
$$\sum_{n=0}^\infty \frac{2n}{n^2+1}(1 -... | {} |
Estimate the log-likelihood using Gaussian Quadrature (multidimensional grid)
calc.2LL(fit, nnodes.gq = 8, nsd.gq = 4)
## Arguments
fit saemFit fit number of nodes to use for the Gaussian quadrature when computing the likelihood with this method (defaults to 1, equivalent to the Laplaclian likelihood) span (in SD) o... | {} |
# Tag Info
25
Depending on your precise needs there are different options: If you want to only run XeLaTeX explicitly from time to time, use Tools -> Commands -> XeLaTeX. You may assign a shortcut in the options. If you want to modify the default build configuration (i.e. the compiler for Tools -> Build / Build & Vie... | {} |
## what is dysprosium
The transition of a substance directly from the solid to the gas phase without passing through a liquid phase. Look at $\frac{\mathrm{d}y}{\mathrm{d}x}$ as just any other variable, and then apply the rule. Dysprosium is located at position 66 on the periodic table. Symbol: Dy; atomic weight: 162.... | {} |
# Minimal prime divisors (MinAss R)
Hello All,is This conclusion true?
If $(R,m)$ is a local ring and $Min Ass R=Ass R$ then can we conclude that $Min Ass \hat{R}=Ass \hat{R}$? ($\hat{R}$ is $m$-adic completion of $R$)
$MinAss$ means minimal primes in $Ass(R)$. "$Min Ass R = Ass R$" means that $R$ has no embedded pr... | {} |
Unsupervised Shape Completion via Deep Prior in the Neural Tangent Kernel Perspective
Chu Lei1,2, Hao Pan2, Wenping Wang3,1
1The University of Hong Kong, 2Microsoft Research Asia, 3Texas A&M University
ACM Transactions on Graphics
Completing partial scans of 3D shapes from different categories with large missing areas... | {} |
# Thread: [SOLVED] 3, 5, 7 primes
1. ## [SOLVED] 3, 5, 7 primes
Prove that 3, 5, 7 are the only three consecutive odd integers that are primes.
How to start?
2. Originally Posted by dwsmith
Prove that 3, 5, 7 are the only three consecutive odd integers that are primes.
How to start?
Consider congruence, mod 3. For... | {} |
Data Structures and Algorithm Analysis Notes 中的文章
• [Lecture 1] Introduction, Mathematics Review, Recursion
• [Lecture 2] Asymptotic Notation, Algorithm Analysis
• 本文在 署名-非商业性使用-相同方式共享 3.0 版权协议下发布, 转载请注明出自 kyleslight.net
# [Lecture 1] Introduction, Mathematics Review, Recursion
## 1 Foreword
This tutorial is written... | {} |
# How to prove that a function has directional derivative?
I want to prove that the function the given function has directional derivative for all $x\in\mathbb{E}^2$ and for each $v\in \mathbb{E}^2 \setminus \{0\}$.
$$f(x)= \begin{cases} \frac{x_1^2x_2}{x_1^4+x_2^2}, & \text{if } x \in \mathbb{E}^2 \setminus \{\mathb... | {} |
Volcano Watch - Kīlauea lava meets the sea again: will you be assaulted by a salty (and stinging) plume?
Release Date:
"The only constant is change" is an adage that certainly applies to Kīlauea Volcano. Over the past weeks volcano watchers have been treated to views of incandescent lava patches high above the coasta... | {} |
# Hello World and another stroy
Posted by Yuling Yao on Jan 03, 2018. Tag: zombies
I am starting to write my blog. And it apparently took more time to become convinced than actually begining, just as many other things. As a technical issue, I am now using Github Page to hold my website, Jekyll for blogs, and Ma... | {} |
# Why errorbars shouldn't be SEM*√2 long by default?
There is no standard recommendation for length of errorbars to be used while showing spread of data or means in graphics. Standard deviation (SD), standard error of mean (SEM) and 95% confidence intervals (CI) are all used.
It is also common to have 2 means with er... | {} |
superhulk
• 515
• 3
• 11
Let $$u(x)=xq(x)-t(x)$$. Incentive compatibility dictates that $$xq(x)-t(x)\geq xq(z)-t(z)$$, when $$x$$ is the observed private value. Using a little algebraic manipulation, it can be shown that,
$$xq(x)-t(x)+zq(z)\geq xq(z)-t(z)+zq(z)$$, or
$$u(x)+zq(z)\geq u(z)+xq(z)$$, or
$$u(x)\geq u(z... | {} |
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# Posts Tagged ‘ University life ’
## Le Monde puzzle [#783]
July 20, 2012
By
$Le Monde puzzle [#783]$
In a political party, there are as many cells as there are members and each member belongs to at least one cell. Each cell has five members and an arbitrary pair of cells only shares one member. How many members ar... | {} |
# Post-doctoral Assistant
The Research Unit Applied Statistics (ASTAT) of the Institute of Statistics and Mathematical Methods in Economics, TU Wien, invites applications for a Postdoctoral Assistant position to start as soon as possible.
Responsibilities: The successful candidate is expected to conduct research for ... | {} |
Robots Evacuation in the Face-to-face Model
Saeed Mehrabi
Carleton University
Consider $k$ robots initially located at the centroid of an equilateral triangle $T$ with sides of length 1. The goal of the robots is to evacuate $T$ through an exit at an unknown location on the boundary of $T$. Each robot can move anywher... | {} |
# Mscgen
## What is it?
Mscgen is a small program that parses Message Sequence Chart descriptions and produces PNG, SVG, EPS or server side image maps (ismaps) as the output. Message Sequence Charts (MSCs) are a way of representing entities and interactions over some time period and are often used in combination with... | {} |
# Tag Info
34
More blades give you more cost, but very little increase in efficiency. Three blades turns out to be the optimum. With four or more blades, costs are higher, with insufficient extra efficiency to compensate. This is more expensive per unit electricity generated, if you go for more, but shorter, blades: ... | {} |
# AMY
### overview
Here we present results for the "brick" problem using exactly the methodology of the paper
Energy loss of leading hadrons and direct photon production in evolving quark-gluon plasma
by Turbide et al, hep-ph/0502248 (inelastic energy loss using the AMY method) and
Radiative and collisional jet energ... | {} |
# Publish Your MATLAB Analysis to Your Blog
I have been posting blogs about MATLAB with code examples for many years. Steve Eddins, my fellow blogger of Steve on Image Processing fame, developed and maintains an internal tool that automates a lot of tasks and I rely on it to publish my blog posts.
One of my guest blo... | {} |
## weak acids
Acidity $K_{a}$
Basicity $K_{b}$
The Conjugate Seesaw $K_{a}\times K_{b}=K_{w}$
Emely Reyna 1F
Posts: 30
Joined: Fri Apr 06, 2018 11:04 am
### weak acids
What should we know about weak acids for the final since we wont have to do calculations?
Ismail 1F
Posts: 32
Joined: Wed Nov 15, 2017 3:02 am
###... | {} |
# definition of Lie derivatives
by yifli
Tags: definition, derivatives
P: 70 Let $\varphi$ be a one-parameter group on a manifold M, and let $f$ be a differentiable function on M, the derivative of f with respect to $\varphi$ is the defined as the limit: $$\lim_{t\to 0} \frac{\varphi^*_t[f]-f}{t}(x)=\lim_{t\to 0}\fra... | {} |
Free Version
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# Which One is Skew-Symmeric?
LINALG-ERELX5
Which of the following matrices is skew-symmetric?
A
$\begin{pmatrix}1&2&3\\\ 4&5&6\\\ 7&8&9\end{pmatrix}$
B
$\begin{pmatrix}1&1&1\\\ 0&0&0\\\ -1&-1&-1\end{pmatrix}$
C
$\begin{pmatrix}0&1&-1\\\ -1&0&0\\\ 1&0&0\end{pmatrix}$
D
$\begin{pmatrix}1&2&2... | {} |
# How do you express z = 1 + i sqrt(3) in polar and trigonometric form, and sketch z on the complex number plane?
Nov 18, 2017
The polar form is $\left(2 , \frac{\pi}{3}\right)$. The trigonometric form is $z = 2 \left(\cos \left(\frac{\pi}{3}\right) + i \sin \left(\frac{\pi}{3}\right)\right)$
#### Explanation:
The ... | {} |
# XSLT
XSLT based on libxml.
miyako/4d-plugin-xslt-v2
#### Compatibility note
For simplicity, the command signature has been changed.
• Object instead of array pair
• BLOB I/O instead of text
#### Library information
• libxml2 2.9.9 –with-threads
• libxslt 1.1.33
xmlInitParser() is used in the “main” thread
re... | {} |
## Intermediate Algebra (12th Edition)
$4p-36\sqrt{p}+\sqrt{7p}-9\sqrt{7}$
$\bf{\text{Solution Outline:}}$ To simplify the given radical expression, $(4\sqrt{p}+\sqrt{7})(\sqrt{p}-9) ,$ use FOIL and the laws of radicals. $\bf{\text{Solution Details:}}$ Using the FOIL Method which is given by $(a+b)(c+d)=ac+ad+bc+bd,$ ... | {} |
#### Approach 1: Brute Force
Intuition
Because a sequence could start at any number in nums, we can exhaust the entire search space by building as long a sequence as possible from every number.
Algorithm
The brute force algorithm does not do anything clever - it just considers each number in nums, attempting to cou... | {} |
# [texhax] Ref. Man. Bausum [was tabbing]
Barbara Beeton bnb at ams.org
Thu Sep 14 15:36:57 CEST 2006
```re uwe's question regarding some tex references:
At 02:27 14.09.06, Karl Berry wrote:
> *** TeX Reference Manual by David Bausum ***
>
>Does it go far beyond TeX for the Impatient and (especially) TeX by T... | {} |
# Deutsche Bahn’s Meltdown and High-Speed Rail
A seven-hour rail trip from Munich to Berlin – four and a half on the timetable plus two and a half of sitting at and just outside Nuremberg – has forced me to think a lot more about the ongoing collapse of the German intercity rail network. Ridership has fully recovered ... | {} |
# Hi, I have been trying to understand the derivation of a hypocycloid's parametric equation, but am stuck with one part.
I have been using someone else's answer on the same site to understand the problem: here's the link - Parametric equations for hypocycloid and epicycloid
I can understand everything but the part w... | {} |
# Is it possible to orbit inside a gas giant?
When we talk about orbits we often imagine a ship or station orbiting a planet outside its atmosphere.
Is it possible a ship could go into orbit inside its atmosphere (perhaps to hide from other craft) or would it be torn apart by the gravity and atmosphere of the planet?... | {} |
All Questions
293 views
Gravity in the center of a hollow neutron star [duplicate]
Imagine a hollow 100 metre diameter (for example) sphere made of incredible dense material (ie neutron star dust etc) but is self supporting (ie the central cavity). Assuming that the sphere skin is ...
244 views
Two components of an... | {} |
# How to use \boldsymbol with greek symbols with Tex Gyre Pagella?
I usually use something like \boldsymbol\sigma to obtain bold greek letters, which only requires \usepackage{amsmath}.
This doesn't seem to work when using XeLatex and Tex Gyre Pagella, as shown in the following MWE:
\documentclass{article}
\usepacka... | {} |
The geodesic ray transform on Riemannian surfaces with conjugate points
# The geodesic ray transform on Riemannian surfaces with conjugate points
François Monard Department of Mathematics, University of Washington, Seattle, WA 98195 Plamen Stefanov Department of Mathematics, Purdue University, West Lafayette, IN 4790... | {} |
## How to print colored or bolded strings in Matlab
From not very in-depth research there seems to be no way to color strings being output to the terminal in Matlab when …
## C++ Pipeline for Learning Fisher Vectors Using VLFeat
I implemented a C++ pipeline for learning Fisher feature vectors using VLFeat since Matl... | {} |
]> No Title
$\mathit{Z}\mathrm{=}\frac{{\mathit{S}}^{\mathrm{2}}}{\mathit{\rho }\mathit{k}}{\mathit{T}}_{\mathit{a}}\mathrm{=}\frac{\mathrm{\left(}\frac{\mathit{V}\mathit{o}\mathit{l}\mathit{t}}{\mathit{K}}{\mathrm{1}}^{\mathrm{2}}}{\mathrm{\left(}\mathit{o}\mathit{h}\mathit{m}\mathit{m}\mathrm{\right)}\mathrm{\left(}... | {} |
## Exercise 1: Epidemiology
Imagine that you are an epidemiologist and you are determining people’s cause of death. In this simplified world, there are two main diseases, cancer and the common cold. People rarely have cancer, $p( \text{cancer}) = 0.00001$, but when they do have cancer, it is often fatal, $p( \text{dea... | {} |
#### Virtual Private Network
A network in which some of the parts are connected using the public Internet, but the data sent across the Internet is encrypted, so the entire network is 'virtually' private.
Canada Health Infoway, EHRS Blueprint Version 2 | {} |
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