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# How to prove Bloch function is periodic in reciprocal lattice?
How to prove Bloch function is periodic in reciprocal lattice?
I saw in some textbooks this formula: $$\Psi_{\mathbf{k}} (\mathbf{r}) = \sum_{\mathbf{G}} c_{\mathbf{k}+\mathbf{G}}e^{i(\mathbf{k}+\mathbf{G})\cdot \mathbf{r}}$$ which makes the statement o... | |
444 views
With 5 distinct nodes, the maximum no. of binary trees that can be formed is _____
5 distinct nodes implies nodes are labelled
Catalan number returns the total count of structurally independent binary trees.
For each structurally independent binary tree, there can only be one BST, and only one unlabelled bi... | |
These are applications of the remainder and factor theorems. If a polynomial \displaystyle \begin{align*} P(x) \end{align*} is divided by \displaystyle \begin{align*} (x - \alpha ) \end{align*}, then the remainder is equal to \displaystyle \begin{align*} P \left( \alpha \right) \end{align*}. | |
Europe/Berlin
Online event
Description
# We warmly invite the neutron scattering community!
This year, the MLZ User Meeting will take place December 08th to 09th and is directly linked to the German Neutron Scattering Conference DN2020 on December 09th and 10th which is hosted by the FRM II/ MLZ for the second time ... | |
# Dissecting a tetrahedron into orthoschemes
Hey,
Is there a way to dissect any tetrahedron into a finite number of orthoschemes.
I know that for a tetrahedron which only has acute angles, one can take the center of the inscribed circle and project the center on all the faces and edges and connect it with the vertic... | |
# Introduction to the Physics of Massive and Mixed Neutrinos Paperback / softback
## Part of the Lecture Notes in Physics series
#### Description
Small neutrino masses are the first signs of new physics beyond the Standard Model of particle physics.
Since the first edition of this textbook appeared in 2010, the Nob... | |
# Counting trails in a triangular grid
A triangular grid has $N$ vertices, labeled from 1 to $N$. Two vertices $i$ and $j$ are adjacent if and only if $|i-j|=1$ or $|i-j|=2$. See the figure below for the case $N = 7$.
How many trails are there from $1$ to $N$ in this graph? A trail is allowed to visit a vertex more t... | |
# [Resource Topic] 2019/1264: Resource-Restricted Cryptography: Revisiting MPC Bounds in the Proof-of-Work Era
Welcome to the resource topic for 2019/1264
Title:
Resource-Restricted Cryptography: Revisiting MPC Bounds in the Proof-of-Work Era
Authors: Juan Garay, Aggelos Kiayias, Rafail Ostrovsky, Giorgos Panagiotak... | |
158 articles – 1990 Notices [english version]
HAL : in2p3-00338288, version 1
arXiv : 0811.0692
We report on results from a Suzaku observation of the narrow-line Seyfert 1 NGC 4051. During our observation, large-amplitude rapid variability was seen, and the averaged 2-10keV flux was 8.1$\times$10$^{-12}$ergs$^{-1}$... | |
# Prove decidable
L={⟨M⟩: M is a DFA and for each string in L(M) the number of 1s is more than or equal to the number of 0s }
T = "On input where M is encoded DFA"
1. Construct another DFA D such that L(D)={x|x has more or equal 1s than 0s}
2. For each input x
a. if( x is accepted by DFA M){
if(accepted by D){
"acce... | |
# Inequalities involving exponentials
I am having trouble to solve this inequality in specific.
For $f(x)=6-2^x$ and $g(x)=4^x$
Solve in $\mathbb{R}$: $$(f+g)(x)<6$$
• Please include your own effort. – S.C.B. Feb 4 '17 at 15:37
Hint. Let $t=2^x$ and solve $6-t+t^2<6$. Can you take it from here?
• So, I was doing ... | |
Ramification groups
Let $L/K$ be a Galois extension of number fields with Galois group $G$. Let $O_K$ and $O_L$ be the ring of algebraic integers of $K$ and $L$ respectively. Let $P\subseteq O_K$ be a prime. Let $Q\subseteq O_L$ be a prime lying over $P$.
The $n$-th ramification group is defined as $$E_n(Q|P)=\lbrace... | |
# Including images in an R code chunk of R sweave using for loop
I am new to sweave and Latex. I am basically using an if-else loop which should display some specific image (taken from the laptop) if certain condition is satisfied. When I run this loop in R, the output is satisfactory in the console. It is also alrigh... | |
# Local volatility SVI parametrization
In this paper Gatheral presents the following parametrization of the implied total variance $w(k,T) = \sigma_{BS}(k,T)^2T$ for each slice $k \mapsto w(k,T)$:
$$w(k) = a + b\{\rho (k-m) + \sqrt{(k-m)^2 + \sigma^2} \}.$$
As far as I understand it, for each expiry $T$ one will hav... | |
# American Institute of Mathematical Sciences
2010, 13(3): 633-646. doi: 10.3934/dcdsb.2010.13.633
## Some new results on explicit traveling wave solutions of $K(m, n)$ equation
1 School of Mathematical Sciences, Peking University, Beijing 100871
Received May 2009 Revised December 2009 Published February 2010
... | |
Volume 17, issue 2 (2017)
Recent Issues
The Journal About the Journal Editorial Board Editorial Interests Subscriptions Submission Guidelines Submission Page Policies for Authors Ethics Statement ISSN (electronic): 1472-2739 ISSN (print): 1472-2747 Author Index To Appear Other MSP Journals
Stable functorial decompos... | |
Browse ORBi by ORBi project The Open Access movement
ORBi is a project of
References of "Goupil, M. J" in Complete repository Arts & humanities Archaeology Art & art history Classical & oriental studies History Languages & linguistics Literature Performing arts Philosophy & ethics Religion & th... | |
$\small{H_{\infty}}$ Robust Yaw-Moment Control Based on Brake Switching for the Enhancement of Vehicle Performance and Stability
Title & Authors
$\small{H_{\infty}}$ Robust Yaw-Moment Control Based on Brake Switching for the Enhancement of Vehicle Performance and Stability
Ahn, Woo-Sung; Park, Jong-Hyeon;
Abstract
Th... | |
# What is the total square on the dual Steenrod algebra?
The dual Steenrod algebra ($$p=2$$) has generators $$\xi_n$$ and these have conjugates that are often labeled $$\zeta_n$$. I am curious about the left and right actions of the Steenrod algebra on its dual, and in particular, what the total square is. I have seen... | |
Journal article Open Access
# ANTIDIABETIC ACTIVITY OF AQUEOUS EXTRACT FROM VIGNA RADIATA IN STREPTOZOTOCIN INDUCED DIABETIC MICE.
Kassahun Dires Ayenewu
### Dublin Core Export
<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI... | |
# Polynomial Rings - Gauss's Lemma
• Apr 12th 2013, 09:52 PM
Bernhard
Polynomial Rings - Gauss's Lemma
I am trying to understand the proof of Gauss's Lemma as given in Dummit and Foote Section 9.3 pages 303-304 (see attached)
On page 304, part way through the proof, D&F write:
"Assume d is not a unit (in R) and writ... | |
# Filters
Any combination of passive (R, L, and C) and/or active (transistors or operational amplifiers) elements designed to select or reject a band of frequencies is called a filter.
In communication systems, filters are employed to pass those frequencies containing the desired information and to re... | |
# Thread: contour integral, limiting contour theorem with residue
1. ## contour integral, limiting contour theorem with residue
$\displaystyle \int_{0}^{\infty} \frac{x^{-1/3}}{x^2+1} dx$
I did try to take the contour, and take notice the three "bad points" are $0$, $i$, and $-i$.
I used residue theorem that $\disp... | |
#### HACKING.tex16 KB History Raw
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013... | |
# Symmetries versus the spectrum of $J\bar T$-deformed CFTs
### Submission summary
As Contributors: Monica Guica Arxiv Link: https://arxiv.org/abs/2012.15806v2 (pdf) Date accepted: 2021-03-02 Date submitted: 2021-01-14 07:08 Submitted by: Guica, Monica Submitted to: SciPost Physics Academic field: Physics Specialtie... | |
Courses
# Test: Determinants (CBSE Level) - 1
## 25 Questions MCQ Test Mathematics (Maths) Class 12 | Test: Determinants (CBSE Level) - 1
Description
This mock test of Test: Determinants (CBSE Level) - 1 for JEE helps you for every JEE entrance exam. This contains 25 Multiple Choice Questions for JEE Test: Determina... | |
# Using binomial theorem, expand each of the following:
Question:
Using binomial theorem, expand each of the following:
$\left(\frac{2 x}{3}-\frac{3}{2 x}\right)^{6}$
Solution:
To find: Expansion of $\left(\frac{2 x}{3}-\frac{3}{2 x}\right)^{6}$
Formula used: (i) ${ }^{n} C_{r}=\frac{n !}{(n-r) !(r) !}$
(ii) $(a... | |
# Tag Info
15
It depends on the car. If it's a big displacement high performance engine, then you may not be able to get the rear wheels to turn unless you're in the highest gear. If it's got an itty bitty engine, then push-starting in 1st may work best. While I don't have personal experience, because weight transfer... | |
# Find the the locus from the arg of a ratio of two complex numbers
What is the locus given by the following equation?
$$arg\left(\frac{z+1}{z-1}\right)=\frac{\pi}{2}$$
I know that $$arg\left(\frac{z_1}{z_2}\right)=arg(z_1)-arg(z_2)$$
and that the loci must emanate from -1 and +1 on the real axis. The $\pi/2$ also ... | |
# Do *all* non-dividend paying assets have the risk-free instantaneous return rate under the risk-neutral measure?
For simplicity let's consider a 1D BS world. The only source of randomness comes from the Brownian motion dynamics $$dB_t$$. The risk-free rate is $$r$$ (one may assume it as constant for the time being).... | |
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# The cosmic-ray ionisation rate in the pre-stellar core L1544
Preprint
Bookmark
There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to ma... | |
# How to explain the behaviour of TreeForm? [duplicate]
Just try this:
g=1;a=1;TreeForm[Hold[g[a]]]
The weird thing in the outcome is that the node of g displays 1 ,and a is still a. I do not know how to explain the behaviour of TreeForm.
I would call this a bug. Please report it to Wolfram.
IGraph/M's IGExpressi... | |
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# Getting words matter of a pdf record in Evince
Is there any kind of means I can get words matter of a PDF record that I'm watching in Evince, Ubuntu is default pdf visitor? I'm able to transform the records to message documents and also get words matter from the terminal, yet I would certainly fairly such as to be a... | |
# Bias corrected calibration curve from scratch
## 2021/03/10
library(ggplot2); theme_set(theme_bw(base_size = 14))
library(rms)
In the last post, we saw how to fit a bias-corrected calibration curve using the rms package. In this post we see how to do the same thing without loading the rms package. Of course, we ne... | |
skip to main content
Finite Time Blowup of 2D Boussinesq and 3D Euler Equations with $C^{1,\alpha}$ Velocity and Boundary
Inspired by the numerical evidence of a potential 3D Euler singularity by Luo- Hou [30,31] and the recent breakthrough by Elgindi [11] on the singularity formation of the 3D Euler equation without ... | |
# livvkit.elements package¶
## livvkit.elements.elements module¶
Module containing report generation and display elements
The elements in this module are used by LIVVkit to generate analyses reports. Reports by default will be a portable HTML website, but each of these elements provide some experimental (and therefo... | |
# I Second order ordinary differential equation to a system of first order
#### LSMOG
I tried to convert the second order ordinary differential equation to a system of first order differential equations and to write it in a matrix form. I took it from the book by LM Hocking on (Optimal control). What did I do wrong i... | |
# Thermodynamics; find the thermal energy
1. Aug 26, 2013
### iScience
question:Calculate the total thermal energy in a liter of helium at room temperature and atmospheric pressure. Then repeat the calculation for a liter of air.
I'm just confused because i thought thermal energy only depended on the translational ... | |
# A cradle is ‘h’ meters above the ground at the lowest position and ‘H’ meters when it is at the highest point…
Q: A cradle is ‘h’ meters above the ground at the lowest position and ‘H’ meters when it is at the highest point. If ‘v’ is the maximum speed of the swing of total mass ‘m’ the relation between ‘h’ and ‘H’ ... | |
• ### Mapping the material in the LHCb vertex locator using secondary hadronic interactions(1803.07466)
March 20, 2018 hep-ex, physics.ins-det
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in iden... | |
# Brachistochrone with tandem phases#
Things you’ll learn through this example
• How to run two phases with different ODE’s and different grids simultaneously in time.
This is a contrived example but it demonstrates a useful feature of Dymos we call tandem phases. Tandem phases are two phases that occur simultaneous... | |
A model of human knee ligaments in the sagittal plane: Part 1: Response to passive flexion. In older badgers, the jaw wheels, leading to the penny-farthing. Apart from being one of the inventors of the steam output (crank, rocker, etc.). 0 ⋮ Vote. Hello Richard This is a very useful site to teach Linkages and Mechanism... | |
# How do scientists perform an artificial transmutation?
Aug 3, 2017
If an element is bombarded by extremely accelerated particles inside a particle accelerator, the element may be transmuted into another element. The particles used may be neutrons, protons, or $\alpha -$particles. | |
## Algebra 1
$b\gt 0.2$
First, get all the b's on one side by adding $1.5b$. $2.7 + 3.5b \gt 3.4$ Then, subtract 2.7 to isolate $b$ $3.5b \gt 0.7$ Then, divide both sides by 3.5 to solve for $b$ $b\gt 0.2$ | |
# Balls and vase $-$ A paradox?
Question
I have infinity number of balls and a large enough vase. I define an action to be "put ten balls into the vase, and take one out". Now, I start from 11:59 and do one action, and after 30 seconds I do one action again, and 15 seconds later again, 7.5 seconds, 3.75 seconds...
#... | |
### Control Flow Basics
Continuing our exploration of Julia basics, let's take a look at control flow in Julia.
As the name suggests control flow operators help us shape the flow of the program. One typical example might be break. break tells Julia to exit the loop or do block it's currently in.
To understand these c... | |
Home Is Safari on iOS 6 caching $.ajax results? Reply: 0 # Is Safari on iOS 6 caching$.ajax results?
user1495
1#
user1495 Published in March 24, 2018, 12:46 am
Since the upgrade to iOS 6, we are seeing Safari's web view take the liberty of caching $.ajax calls. This is in the context of a PhoneGap application so it i... | |
# Fixing GCC's Implementation of memory_order_consume
As I explained previously, there are two valid ways for a C++11 compiler to implement memory_order_consume: an efficient strategy and a heavy one. In the heavy strategy, the compiler simply treats memory_order_consume as an alias for memory_order_acquire. The heavy... | |
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Access your personal account or get JSTOR access through your library or other institution:
# Mallard Survival from Local to Immature Stage in Southwestern Saskatchewan
Jay B. Hestbeck, Alexander Dzubin, J. Bernard Gollop and James D. Nichols
The Journal of Wildlife Manage... | |
# Correcting the warnings of Pattern Matching in GHC 6
I've quited doing this. The motivations are in the bug report.
The warnings for pattern matching in GHC are not being correctly shown. There're a lot of bugs reported on this theme, and they're grouped in Ticket 595.
There's a solution for it, and the GHC develo... | |
GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video
It is currently 29 Jan 2020, 02:18
### 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 Pr... | |
William H. Knapp III
You will not be able to submit your work for credit, because you are not logged in. Log in!
This homework was due on Friday, November 23 at 06:00 a.m. Turkish time. Late submissions receive half credit.
By checking the box below, you certify that the answers you will submit here represent your o... | |
# NCERT Solutions for Class 12 Maths Chapter 7
NCERT Solutions for class 12 Maths Chapter 7 Exercise 7.11, 7.10, 7.9, 7.8, 7.7, 7.6, 7.5, 7.4, 7.3, 7.2, 7.1 and Miscellaneous Exercises of Integrals in English and हिंदी मीडियम free to download in PDF or use online. Class 12 Maths NCERT solutions & Solutions Apps soluti... | |
2015
09-18
# Clumsy Algorithm
Sorted Lists are thought beautiful while permutations are considered elegant. So what about sequence (1, 2, … , n) ? It is the oracle from god. Now Coach Pang finds a permutation (p1, p2, … , pn) over {1, 2, … , n} which has been shuffled by some evil guys. To show Coach Pang’s best rega... | |
# Yuri Sulyma
Office 313 Kassar House firstname_lastnamebrown.edu Department of Mathematics Box 1917 Brown University 151 Thayer Street Providence, RI 02912
I am a Tamarkin Assistant Professor of Mathematics at Brown University. I received my PhD from the University of Texas at Austin under the supervision of Andrew ... | |
## Intermediate Algebra (12th Edition)
Published by Pearson
# Chapter 7 - Section 7.2 - Rational Exponents - 7.2 Exercises: 71
#### Answer
$x^{3}y^{8}$
#### Work Step by Step
$\bf{\text{Solution Outline:}}$ Use the laws of exponents to simplify the given expression, $\dfrac{\left( x^{1/4}y^{2/5}\right)^{20}}{x^2}... | |
# Traces for homogeneous Sobolev spaces in infinite strip-like domains
created by leoni on 29 Aug 2018
[BibTeX]
preprint
Inserted: 29 aug 2018
Year: 2018
ArXiv: 1808.09305 PDF
Abstract:
In this paper we construct a trace operator for homogeneous Sobolev spaces defined on infinite strip-like domains. We identify... | |
# How to Smooth a Path
Context-aware interpolation even when spline fails.
Written on November 4, 2018
One of the issues I ran into when writing about Map of BART was, literally connecting the dots wasn’t able to produce paths as aesthetically pleasing as I had hoped for. They are a bit too edgy for my taste, especi... | |
# English THCSTiếng Anh
#### miniminiaiden
##### Học sinh
Thành viên
[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
Chắc suất Đại học top - Giữ chỗ ngay!!
ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.
Complete the second sentence so that it has a similar meaning to the first... | |
, 21.06.2019 19:00 Hazy095
# What term makes it inconsistent y=2x - 4
### Another question on Mathematics
Mathematics, 21.06.2019 14:10
What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7
Mathematics, 21.06.2019 16:30... | |
I've always wanted to play with 3d images and it now turns out that Blender has a python console that will help you do just that (thanks EuroPython 2014). Blender is an open source 3d editing tool with a sizeable community. It does lack beginner code tutorials with simple examples. Most tutorials are focussed on using ... | |
## VR 20 A certain toll station on a highway has 7 tollbooths
##### This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 367
Joined: 05 Jun 2015
Thanked: 3 times
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### VR 20 A certain toll station on a highway has 7 tollbooths
by NandishSS » Sun Oct 20, 2019 3:37 am
A certain toll s... | |
# 4\sin(x)+7\cos(x)=6 where 0 \leq x \leq 360^{\circ} I put the equation into
$$\displaystyle{4}{\sin{{\left({x}\right)}}}+{7}{\cos{{\left({x}\right)}}}={6}$$
where $$\displaystyle{0}\leq{x}\leq{360}^{{\circ}}$$
I put the equation into the form $$\displaystyle{a}{\sin{{\left({x}\right)}}}+{b}{\cos{{\left({x}\right)}}}... | |
# C# Fastest way to iterate over certain tiles overlapping multiple chunks?
What's the fastest way of iterating over certain tiles overlapping multiple chunks in C#.
Ideally without having to iterate over everything, just a specific set of coordinates? (green cubes example below)
I had some partial solutions, but i'... | |
# simple android app that allows user just to choose IP and port
I developed a web application for mobile devices, every customer installs the webapplication on his webserver. So I have this scenario:
Customer 1: application at 210.132.1.23:87
Customer 2: application at 210.2.13.13:9944
...
Customer N: application... | |
## Chemistry (4th Edition)
(a) nitrogen trifluoride: NF$_{3}$ (b) phosphorus pentabromide: PBr$_{5}$ (c) sulfur dichloride: SCl$_{2}$
To name a molecular compound, we keep the name of the first element as-is, adding a prefix denoting the number of atoms of that element that are present in the compound only if that num... | |
# Why is the electric field outside a capacitor zero degree?
Date created: Tue, Jun 8, 2021 11:15 AM
Content
FAQ
Those who are looking for an answer to the question «Why is the electric field outside a capacitor zero degree?» often ask the following questions:
### 👉 Why is the electric field zero outside a capaci... | |
# Vector Space R^3 and rigorous proof
1. Mar 5, 2012
### bugatti79
1. The problem statement, all variables and given/known data
1) Consider the 3 norms in vector space R^3, $\| \|_i$ where i=1,2 and infinity. Given x = (2, -5,3) and y = ( -3, 2,0).
Calculate $\|x\|_1, \|x+y\|_2, \|x-2y\|_\infty$
2)Prove Rigorousl... | |
# Math Help - A tank of water.
1. ## A tank of water.
I am getting perplexed with this problem. I have my method below following the question but the more I look at it the more it doesn't seem right.
A tank contains a perfectly mixed solution of 5kg of salt and 500 litres of water. Starting at t=0, fresh water is po... | |
## Top new questions this week:
### Is it worthwhile to give off-topic talks?
I am a graduate student. Occasionally for some reason I am asked to give a talk on my research at a conference whose stated purpose is almost completely unrelated to my research. To preserve my …
soft-question career
### Does Fermat's las... | |
# The Length-Constrained Brachistochrone¶
Things you'll learn through this example
• How to connect the outputs from a trajectory to a downstream system.
This is a modified take on the brachistochrone problem. In this instance, we assume that the quantity of wire available is limited. Now, we seek to find the minimu... | |
# please i need help fast and need why
if total liabilities increased by $14000 during a period of time and owner's equity decreased by$6000 during the same period, then the amount and direction (increase or decrease) of the period's change in total assets is a :
1) $14000 increase 2)$20000 increase
3) $8000 decrease ... | |
# How do you prove (cos[theta]+cot[theta])/(csc[theta]+1)= cos[theta]?
Using the definitions of $\cot \left(\theta\right)$ and $\csc \left(\theta\right)$, for $\sin \left(\theta\right) \ne 0$ and $\sin \left(\theta\right) \ne - 1$, we have
$\frac{\cos \left(\theta\right) + \cot \left(\theta\right)}{\csc \left(\theta\r... | |
# FizzBuzz from a casual rubyist
As a casual Rubyist I am mainly interested, how ideomatic my solution is.
class Integer
def divisible_by?(n)
(self % n).zero?
end
end
def fizzbuzz(upper_bound)
1.upto(upper_bound).map do |number|
next "fizzbuzz" if number.divisible_by? 3 and number.divisible_by? 5
next "fizz" if numb... | |
# A researcher is studying the population of a small town of N=3000 people.
#### soklang
##### New Member
A researcher is studying the population of a small town of N=3000 people. She's interested in estimating p for several yes/no questions on a survey. The estimate is to be within E=0.05 of the true proportion.
Q1:... | |
# Show that all roots are complex
Show that all roots of $p(x)$ $=$ $11x^{10} - 10x^9 - 10x + 11$ lie on the unit circle $abs(x)$ = $1$ in the complex plane.
My progress so far enter image description here
enter preformatted text here
I tried messing around with the polar form complex numbers but my proof turned ou... | |
# Non-targeted detection of food adulteration using an ensemble machine-learning model
### Normal and spiked raw milk samples
Archive data of 65,547 normal bovine raw milk samples sampled between 2017 and 2019 were provided by Mengniu and retrieved from in-house laboratory information management systems (LIMS). The d... | |
# Questions about analytic functions, and zeros.
I'm studying Silverman's complex analysis but this book seems a lot slack. I have a question in page273:
Suppose $f(z)$ is a nonconstant analytic at $z_0$ with $f(z_0)$=0. Then, by the corollary to Theorem 8.13, there exists a neighborhood of $z_0$ that contains no oth... | |
# Recent posts tagged job
1
Formula for no.of calls in f(n) =2f(n)-1 when f(0)=1 only applied fibonacci series where f(0)=1 f(1)=1 f(2)=2 i,e (f(0)+f(1)) f(3)=3............f(7)=21 so no.of calls 2(21)-1=41 remember when f(0)=0,f(1)=1 then formula changes as 2f(n+1)-1
2
When window scaling happens, a 14 bit shift count... | |
# What occurs as two atoms of fluorine combine to become a molecule of fluorine?
Mar 14, 2018
#### Explanation:
When two fluorine atoms combine, they become more stable, and form a molecule called ${F}_{2}$. When referring to fluorine itself, ${F}_{2}$ is usually used, as fluorine never exists alone due to its react... | |
# Talk:Injective function
WikiProject Mathematics (Rated Start-class, Mid-importance)
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of Mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussi... | |
# Projectile motion problem
narutoish
## Homework Statement
starting at 2.00m away from a waterfall .55m in height, at what minimum speed must a salmon jumping at an angle of 32.0° leave the water to continue upstream?
## Homework Equations
Δx=vi(cosθ)Δt
Δy=vi(sinθ)Δt-1/2g(Δt)2
## The Attempt at a Solution
there... | |
# LHCb observes four new tetraquarks
3 March 2021
The LHCb collaboration has added four new exotic particles to the growing list of hadrons discovered so far at the LHC. In a paper posted to the arXiv preprint server yesterday the collaboration reports the observation of two tetraquarks with a new quark content (cc̄u... | |
## Pooled variance procedure
Let and be the sample standard deviations constructed from and , respectively. When it is reasonable to assume ,'' we can construct the pooled sample variance
The test statistic
has the -distribution with degrees of freedom under the null hypothesis . Thus, we reject the null hypothesis... | |
# American Institute of Mathematical Sciences
• Previous Article
Global bifurcation of solutions of the mean curvature spacelike equation in certain standard static spacetimes
• DCDS-S Home
• This Issue
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Stability analysis of an equation with two delays and application to the production of platelets
Nove... | |
## probability theory – Brownian motion first exit time from interval with deterministic structure
I’ve been working on the following problem from a survey paper. It says the following:
Let $$(B_t: t geq 0)$$ be a standard Brownian motion and $$mu,$$ a probability measure on $$mathbb{R}$$ such that $$int_{mathbb{R}}x... | |
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More on the Z lineshape at LHCDecember 19, 2008
Posted by dorigo in personal, physics, science.
Tags: , , ,
comments closed
Yesterday I posted a nice-looking graph without abounding in explanations on how I determined it. Let me fill that gap here today.
A short introduction
Z bosons will be pro... | |
# Gaps in $$\sqrt{n}mod 1$$ and Ergodic Theory
Title: Gaps in $$\sqrt{n}mod 1$$ and Ergodic Theory Author: McMullen, Curtis T.; Elkies, Noam David Note: Order does not necessarily reflect citation order of authors. Citation: Elkies, Noam D., and Curtis T. McMullen. 2004. Gaps in √ n mod 1 and ergodic theory. Duke Mat... | |
# How should US SSN be anonimized?
I have just gotten access to a US government dataset. It is not open, but could eventually be made open. The dataset includes hashed US SSNs. It looks like they used some general hashing function that is causing collisions. The collisions are already a problem in the relatively small... | |
How do you graph f(x)=x^4-3x^2+2x?
Mar 29, 2015
I assume that you want to graph this without technology.
The graph is at the end of the solution. (I believe it's more instructive to not have it to start.)
$f \left(x\right) = {x}^{4} - 3 {x}^{2} + 2 x$
$f$ is a polynomial, so, of course its domain is the set of all... | |
# Mechanism of size reduction
The mechanism of size reduction depends upon the nature of the material, and each material requires different treatment. Fracture generally occurs along the lines of weakness. During size reduction, fresh surfaces are created or existing cracks and fissures are opened up, wherein the form... | |
# Trying To Plot Points Around A Disk From Direction Vector.
This topic is 1525 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
Hi All.
I'm trying to create a particle thruster effect. What I'm thinking of doing is to spawn a ring of particle... | |
# Stock market
Simon one day decided to invest € 62000 to the stock market. After six months he invested July 25 stock markets fell by 47%. Fortunately for Simon from July 25 5 to October 25 his shares have risen by 39%.
Simon is then:
« Correct result
Result
=: 0
#### Solution:
$k = (1\dfrac{ 47}{100})\cdot (1... | |
# Factors of 15: Prime Factorization, Methods, and Examples
All the natural numbers that perfectly divide the number 15 leaving a whole number as the quotient and zero as the remainder are called the factors of 15.
Factors of 15 can also be the two numbers that multiply perfectly and produce the number 15.
This arti... | |
# How To Check If Two Strings Are Equal In Typescript
Knowing how to check if two strings are equal in Typescript will help you a lot when working with the string like you can check input from use. Using equality operator is one of those methods to do it. Let’s go into detail now.
## Check if two strings are equal in... | |
# 4.4: Latin Squares - Mathematics
Definition: Latin square
A Latin square of order (n) is an (n imes n) grid filled with (n) symbols so that each symbol appears once in each row and column.
Example (PageIndex{1})
Here is a Latin square of order 4:
♥ ♣ ♠ ♦ ♣ ♠ ♦ ♥ ♠ ♦ ♥ ♣ ♦ ♥ ♣ ♠
Usually we use the integers (1ld... | |
# Waves: find amplitude, given average power
1. Jun 4, 2008
### wayfarer
1. The problem statement, all variables and given/known data
A sinusoidal transverse wave travels on a string. The string has length 7.60 m and mass 6.50 g. The wave speed is 34.0 m/s and the wavelength is 0.250 m.
If the wave is to have an ave... | |
190 views
$A, S, M$ and $D$ are functions of $x$ and $y$, and they are defined as follows.
• $A(x, y) = x + y$
• $M(x, y) = xy$
• $S(x,y)= x-y$
• $D(x,y)= x/y, y\neq 0$
What is the value of $M(M(A(M(x, y), S(y, x)), x), A(y, x))$ for $x = 2, y = 3$?
1. $60$
2. $140$
3. $25$
4. $70$
Given that,
• $A(x,y)=x+y$
• $M... | |
# Network analysis abuses of null-models
Gorka Zamora-López
Analysing and interpreting data can be a complicated procedure, a maze made of interlinked steps and traps. There are no official procedures for how one should analyse a network. As it happens in many scientific fields the “standard” approach consists of a s... |
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