arxiv_id stringlengths 0 16 | text stringlengths 10 1.65M |
|---|---|
# Harry R. Schwartz
Software engineer, nominal scientist, gentleman of the internet. Member, ←Hotline Webring→.
### The Mathematics of Lavender Wands
Published . Tags: art+design, math.
I’ve been staying in a little place in Portland for the last few weeks, and I noticed that there’s a lavender bush starting to blo... | |
# Decay rate of a scalar particle under scalar/pseudoscalar lagrangian
1. Mar 18, 2009
### torus
Hi,
I'm trying to solve problem 48.4 of Srednickis QFT-Book. It goes something like this:
1. The problem statement, all variables and given/known data
We have a scalar field with mass M and a Dirac field with mass m (M>... | |
# American Institute of Mathematical Sciences
• Previous Article
Weak Carleman estimates with two large parameters for second order operators and applications to elasticity with residual stress
• DCDS Home
• This Issue
• Next Article
Degenerate diffusion with a drift potential: A viscosity solutions approach
May 2010... | |
2) - 2/7 1451A - Subtract or Divide - Accepted; 1451B - Non-Substring Subsequence - Accepted; 1451C - String Equality - Accepted 2), problem: (C) The C... Codeforces Round #250 (Div. 2 problems. Codeforces Round #655 (Div. [Beta] Harwest — Git wrap your submissions this Christmas! This is a video editorial on the codef... | |
<334r>
By the Act of the 18 Car. 2 entituled, An Act for Encouragement of Coynage, the salaries of the Officers of the Mint, & the charges of providing maintaining & repairing of the Houses Offices & Buildings & (those of providing maintaining & repairing) other necessaries for assaying melting down & coyning, are lim... | |
# Ex.11.1 Q8 Perimeter and Area - NCERT Maths Class 7
Go back to 'Ex.11.1'
## Question
A door of length $$2\,\rm{}m$$ and breadth $$1\,\rm{}m$$ is fitted in a wall. The length of the wall is $$4.5\,\rm{}m$$ and the breadth is $$3.6\,\rm{}m$$ (See the below Fig). Find the cost of white washing the wall, if the rate ... | |
The Question : 175 people think this question is useful I am a bit confused. What is the difference between a linear and affine function? Any suggestions will be appreciated The Question Comments : A quick definition for linearity would be “$f(x)$ is linear if $f(\alpha x_1+\beta x_2)=\alpha f(x_1)+\beta f(x_2)$”. This... | |
New Titles | FAQ | Keep Informed | Review Cart | Contact Us Quick Search (Advanced Search ) Browse by Subject General Interest Logic & Foundations Number Theory Algebra & Algebraic Geometry Discrete Math & Combinatorics Analysis Differential Equations Geometry & Topology Probability & Statistics Applications Ma... | |
19 Jul 2017
# Week 6 – Applying Hydrostatic Forces to Boat
I finally apply forces to the boat this week. Not quite what I expected.
Last week, I obtained the fully submerged triangles on the boat’s mesh so that I can apply hydrostatic forces to those triangles. This week, I will apply those forces to the triangles. ... | |
# How to abstract over function arity in Lean and Coq?
Given types $$A, B$$ I would like to express the type of all functions $$f$$ for which there exists an $$n \in ℕ$$ such that $$f$$ has type $$A^n \to B$$. And possibly in such a way, that for $$a_1, \dots, a_n : A$$ the expression $$f a_1 \dots a_n$$ is well-forme... | |
Find the linear approximation of g(x) = 81+x8 at a=0. Use the linear approximation to approximate the value of 8√95 and 8√1.1
y=?
I read the function as ⁸√(1+x⁸)=(1+x⁸)^⅛.
The derivative is dg/dx=((1+x⁸)^-⅞)/8. When x=a=0, this is ⅛, and is the gradient for the linear equation. g(a)=g(0)=1.
We can write this linear... | |
# 14.3: Partial Differentiation
[ "article:topic", "Partial Differentiation", "Tangent plane", "Tangent Line", "authorname:guichard" ]
$$\newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} }$$
$$\newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}}$$
When we first ... | |
# Find the distance from the eye at which a coin of 2 cm
Question:
Find the distance from the eye at which a coin of 2 cm diameter should be held so as to conceal the full moon whose angular diameter is 31'.
Solution:
Let PQ be the diameter of the coin and E be the eye of the observer.
Also, let the coin be kept a... | |
# What is the purpose of using NIL for representing null nodes?
In my Algorithms and Data Structures course, professors, slides and the book (Introduction to Algorithms, 3rd edition) have been using the word NIL to denote for example a child of a node (in a tree) that does not exist.
Once, during a lecture, instead o... | |
# HenstockKurzweil integral
In mathematics, the Henstock-Kurzweil integral, also known as the Denjoy integral (pronounce Denjua) and the Perron integral, is a possible definition of the integral of a function. It is a generalisation of the Riemann integral which in some situations is more useful than the Lebesgue inte... | |
# Geometry, Spectral Theory, Groups, and Dynamics
Publisher:
American Mathematical Society
Number of Pages:
275
Price:
79.00
ISBN:
0-8218-3710-9
Wednesday, October 12, 2005
Reviewable:
No
Include In BLL Rating:
No
Michael Entov, Yehuda Pinchover, and Michah Sageev, editors
Series:
Contemporary Mathematics 387
Publicat... | |
# The sum of independent lognormal random variables appears lognormal?
I'm trying to understand why the sum of two (or more) lognormal random variables approaches a lognormal distribution as you increase the number of observations. I've looked online and not found any results concerning this.
Clearly if $X$ and $Y$ a... | |
Periodes et groupes de Mumford-Tate des 1-motifs
Abstract : In this thesis we study the structure and the degeneracies of the Mumford-Tate group of a 1-motive $M$ defined over $\CC$, $MT(M)$. This group is an algebraic $\QQ\,$-group acting on the Hodge realization of $M$ and endowed with an increasing filtration $W_\b... | |
Shape effect on flapping dynamics of an inverted flag in a uniform flow = 균일 유동 내 역방향 깃발의 플래핑 운동에 깃발 형상이 미치는 영향
Cited 0 time in Cited 0 time in
• Hit : 137
The flapping motion of inverted flags with various shapes in a uniform flow were simulated by using the immersed boundary method. The shapes of the flags were char... | |
## Ultralocality and the robustness of slow contraction to cosmic initial conditions
Anna Ijjas (Albert Einstein Institute, Max Planck Institute for Gravitational Physics)
I will discuss the detailed process by which slow contraction smooths and flattens the universe using an improved numerical relativity code that a... | |
# Logging¶
For a description of logging from the users point of view, see Logging.
Logging in Brian is based on the logging module in Python’s standard library.
Every brian module that needs logging should start with the following line, using the get_logger() function to get an instance of BrianLogger:
logger = get... | |
Laplace transforms, numerical solution of ordinary differential equations, Fourier series, and separation of variables method applied to the linear partial differential equations of mathematical physics (heat, wave, and Laplace's equation). The type names are meant only as a guide and may refer to the form of the quest... | |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
# Fractions as Decimals
## Dividing the denominator into the numerator
0%
Progress
Practice Fractions as Decimals
Progress
0%
Fractions as Decimals
Credit: Håkan Dahlström
Source: http... | |
# Deep Learning and Data Science courses on sale for $10! April 24, 2017 Today, Udemy has decided to do yet another AMAZING$10 promo.
As usual, I’m providing $10 coupons for all my courses in the links below. Please use these links and share them with your friends! The$10 promo doesn’t come around often, so make sure ... | |
# Building.cpp
## Overview
Building is a class declared in Building.h and is responsible for containing the full state of the game. It controls all of the Elevators and Floors by performing the Moves and adding the Person objects that are presented to it. There is a single instance of a Building class that will be us... | |
Corpus ID: 49975199
# G L A S H O W - W E I N B E R G - SALAM THEORY OF E L E C T R O W E A K INTERACTIONS AND THE NEUTRAL CURRENTS
```@inproceedings{S2002GLA,
title={G L A S H O W - W E I N B E R G - SALAM THEORY OF E L E C T R O W E A K INTERACTIONS AND THE NEUTRAL CURRENTS},
author={M. S. and Jǐŕı Ho{\vs}ek},
year... | |
# Word (group deory)
In group deory, a word is any written product of group ewements and deir inverses. For exampwe, if x, y and z are ewements of a group G, den xy, z−1xzz and y−1zxx−1yz−1 are words in de set {xyz}. Two different words may evawuate to de same vawue in G,[1] or even in every group.[2] Words pway an im... | |
# How to fill a car with tennis balls
if i want to fill interior of a car with tennis balls how many will be required.
How to calculate this?
if we are provided with length,breadth,height of car(height varies at each part) and radius of tennis ball.
Some one please explain it in detail.
-
I removed the "logic" tag... | |
# Package glossaries Error: Glossary entry has already been defined
I'm getting this error when I use the \gls command:
Package glossaries Error: Glossary entry DCD' has already been defined.
These are how I my package:
\documentclass[12pt]{book}
\usepackage{graphicx}% Include figure files
\usepackage{dcolumn}% Ali... | |
# How to rig this simple machine?
So i was trying to make this “unique fan”. I provided the video sample below, it’s bit low res but i think the mechanism on that machine is still readable : Video reference
For anyone there still unclear or cant see much detail in that video, i just made a simulated rig by manually k... | |
2015 Dec 16
# Topology & geometry: Yochay Jerby (HUJI), " Exceptional collections on toric Fano manifolds and the Landau-Ginzburg equations"
11:00am to 2:30pm
## Location:
Ross building, Hebrew University (Seminar Room 70A)
Abstract: For a toric Fano manifold $X$ denote by $Crit(X) \subset (\mathbb{C}^{\ast})^n$ th... | |
# Deriving the gamma distribution
Let’s take a look at the gamma distribution:
$f(x) = \frac{1}{\Gamma(\alpha)\theta^{\alpha}}x^{\alpha-1}e^{-x/\theta}$
I don’t know about you, but I think it looks pretty horrible. Typing it up in Latex is no fun and gave me second thoughts about writing this post, but I’ll plow ahe... | |
## HATS-17b: A TRANSITING COMPACT WARM JUPITER in A 16.3 DAY CIRCULAR ORBIT
### Description
We report the discovery of HATS-17b, the first transiting warm Jupiter of the HATSouth network. HATS-17b transits its bright (V = 12.4) G-type (${M}_{\star }$ = $1.131\pm 0.030$ ${M}_{\odot }$, ${R}_{\star }$ = ${1.091}_{-0.04... | |
# How many chloride ions will be found in the formula for cobalt(II) chloride?
Precisely $2$.
$C o \left(I I\right)$ refers to a formal $C {o}^{2 +}$ ion. And thus we have $\text{cobaltous chloride, } C {o}^{2 +} + 2 \times C {l}^{-}$, $C o C {l}_{2}$. | |
# Siham Aouissi, Daniel C. Mayer, Moulay Chrif Ismaili, Mohamed Talbi, Abdelmalek Azizi
$3$-rank of ambiguous class groups in cubic Kummer extensions
Let $\mathrm{k}=\mathbb{Q}(\sqrt[3]{d},\zeta_3)$ be the Galois closure of a pure cubic field $\mathbb{Q}(\sqrt[3]{d})$, where $d>1$ is a cube-free positive integer and ... | |
# zbMATH — the first resource for mathematics
Asymptotic properties of covariate-adjusted regression with correlated errors. (English) Zbl 1160.62079
Summary: In covariate-adjusted regression (CAR), the response $$(Y)$$ and the predictors $$(X_r,r=1,\dots ,p)$$ are not observed directly. The estimation is based on $$n... | |
# Math Help - Partial Fraction Decomposition
1. ## Partial Fraction Decomposition
Hi,
I'm stuck on a problem that requires partial fraction decomposition:
2 / [(x2 + 1)( x2 + 4)]
I can't figure out what to do about the x-squared form in the denominator.
edit: I guess those exponents didn't format right. Can someo... | |
Definable real number
A real number a is first-order definable in the language of set theory, without parameters, if there is a formula φ in the language of set theory, with one free variable, such that a is the unique real number such that φ(a) holds in the standard model of set theory (see Kunen 1980:153).
For the ... | |
Index
Working with MUMIE as author
Working with MUMIE as teacher
Using MUMIE via plugin in local LMS
Overview
Go back to the old wiki
We revise and update this wiki. We apologize for the inconvenience this may cause you.
# Sell
The Simple E-Learning Language (=: SELL) is an open standard for mathematical e-lear... | |
# Thread: HOWTO convert LaTeX to OpenOffice .odt and MS Word .doc
1. ## HOWTO convert LaTeX to OpenOffice .odt and MS Word .doc
Hi, Ubuntu 11.10 here.
I used the simplest way:
$> latex foo.tex$> mk4ht foo.tex
It worked aparently fine. However, when I needed to split an equation using \begin{multline}
....
\end{multl... | |
Kaisa Matomäki, Maksym Radziwill, Xuancheng Shao, Joni Teräväinen and I have just uploaded our preprint “Singmaster’s conjecture in the interior of Pascal’s Triangle” to the arXiv. This paper uses the theory of exponential sums over prime numbers to advance a well-known conjecture by Singmaster that claims that any nat... | |
## International Workshop on Elliptic and Kinetic Partial Differential Equations
Mini Courses Week 1:
Prof. Lihe Wang (Iowa)
Regularity theory of elliptic equations - Abstract: The first lecture will start out with the maximum principle and their gradient estimates. Most importantly we will introduce the idea of geo... | |
# Maths
Algebra Level 2
For all $$x$$ in the domain of the function $$\dfrac{x+1}{x^3-x}$$, this function is equivalent to:
F. $$\dfrac1{x^2} -\dfrac1{x^3}$$
G. $$\dfrac1{x^3} -\dfrac1x$$
H. $$\dfrac1{x^2-1}$$
J. $$\dfrac1{x^2-x}$$
K. $$\dfrac1{x^3}$$
× | |
NZ Level 3
Balancing with mixed operations II
Lesson
When we balance number problems, we want them to have the same value on each side. What can we do to one side, so that it has the same value as the other? A seesaw can help you imagine how you might do this!
#### Worked Examples
##### Question 1
Complete the n... | |
5
# Find the points of horizontal tangency to the polar curve_ r = a sin 0 0 < 0 < T, a > 0(r, 0) =0,0(smaller value)(r, 0) =(larger r value)Find the points of...
## Question
###### Find the points of horizontal tangency to the polar curve_ r = a sin 0 0 < 0 < T, a > 0(r, 0) =0,0(smaller value)(r, 0) =(larger r valu... | |
## Filters
Q&A - Ask Doubts and Get Answers
Q
# How many times a wheel of radius 28 cm must rotate to go 352 m?
Q. 16. How many times a wheel of radius $28\; cm$ must rotate to go $352\; m$? (Take $\pi =\frac{22}{7}$ )
Views
It is given that radius of wheel is $28\; cm$
Now, we know that
Circumference of cir... | |
## January 21, 2017
### Planet Mozilla — Assigning blame to unsafe code
While I was at POPL the last few days, I was reminded of an idea regarding how to bring more struture to the unsafe code guidelines process that I’ve been kicking around lately, but which I have yet to write about publicly. The idea is fresh on m... | |
# Gracious Living
The Construction of the Reals: Metric Completion and Dedekind Cuts
March 6, 2011, 21:31
Filed under: Algebra, Math, Set Theory, Topology | Tags: , , , ,
It looks like I’m getting views now, which is surprising. I’ve been pretty busy with schoolwork, but I really want to get this blog up to speed, p... | |
# An azimuthally-modified linear phase grating: Generation of varied radial carpet beams over different diffraction orders with controlled intensity sharing among the generated beams
• 270 Accesses
## Abstract
Diffraction gratings are important optical components and are used in many areas of optics such as in spect... | |
### 名古屋微分方程式セミナー
セミナー世話人：杉本充 菱田俊明 津川光太郎 加藤淳 寺澤祐高
2018 年度
10月22日（月）
We prove existence of weak solutions for a diffuse interface model for the flow of two viscous incompressible Newtonian fluids with different densities in a bounded domain in two and three space dimensions. In contrast to previous works, we study a... | |
• February 25, 2021, 05:54:11 PM
Login with username, password and session length
### Author Topic: (Question) How to get second reference when using Perturbation Theory? (Read 407 times)
0 Members and 1 Guest are viewing this topic.
#### Mr Rebooted
• Fractal Phenom
• Posts: 47
##### (Question)How to get second ... | |
# Theres gotta be an easier way
## Homework Statement
Determine the points on the surface xy^2z^3 = 2 that are closest to the origin
## The Attempt at a Solution
is there an easier way to do this than to plug it into the distance formula and taking the derivative set to 0.
HallsofIvy
Homework Helper
Use the square... | |
# Construct Triangle by Angle Bisector, Altitude, and Side
### Problem
Construct $\Delta ABC,$ given $h_a,$ $l_a,$ and $a.$
### Analysis
It is sufficient to determine the circumcircle of $\Delta ABC.$
### Construction
Step 1: First determine the direction of the angle bisector relative to the line $BC.$ To this e... | |
# How to scan diagrams with Engauge
“The Engauge Digitizer tool accepts image files (like PNG, JPEG and TIFF) containing graphs, and recovers the data points from those graphs.” Source
### Step by step guide:
1. Go to File -> Import to import a file or run engauge <Name-Of-The-File> from the command line.
2. From t... | |
Home > Informal Classroom Notes > “Most Likely” is an All or Nothing Proposition
“Most Likely” is an All or Nothing Proposition
The principle of maximum likelihood estimation is generally not explained well; readers are made to believe that it should be obvious to them that choosing the “most likely outcome” is the m... | |
Managed IT ServicesBusiness ContinuityEMR TransitionTrainingResidential SolutionsSocial Media Services
Address PO Box 817, Morgantown, WV 26507 (304) 685-0394 http://www.itrendtechnology.com
# mean average square error Core, West Virginia
ISBN0-387-98502-6. There are, however, some scenarios where mean squared error... | |
Comment
Share
Q)
# If the ratio of mean and median of a certain data is 2:3 then find the ratio of its mean and median
( A ) ratio 5:3
( B ) ratio is 2:3
( C ) ratio is 3:5
( D ) ratio is 3:2 | |
dimensional-1.0.1.3: Statically checked physical dimensions, using Type Families and Data Kinds.
Numeric.Units.Dimensional
Description
Summary
In this module we provide data types for performing arithmetic with physical quantities and units. Information about the physical dimensions of the quantities/units is embed... | |
SDL2: Some functions crash the program
This topic is 408 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
Recommended Posts
Hey guys,
So I've been messing with SDL this weekend, and found some great tutorials on YouTube, but I've been running into a bizarre proble... | |
# Writing bold small caps with mathpazo package
The URW Palldio font (mathpazo package) does not provide bold small caps. To get round this issue, I'd want to make a macro to use small caps usually and normal caps in bold text.
I tried this code:
\documentclass{minimal}
\usepackage[sc,osf]{mathpazo}
% Use small cap... | |
Thermal Spectral Function and Deconfinement Temperature in Bulk Holographic AdS/QCD with Back Reaction of Bulk Vacuum
# Thermal Spectral Function and Deconfinement Temperature in Bulk Holographic AdS/QCD with Back Reaction of Bulk Vacuum
## Abstract
Based on the IR-improved bulk holographic AdS/QCD model which provi... | |
# If irrational numbers are uncountable, then why did I find this? [closed]
I understand that irrational numbers are uncountable. I've seen the proof and it makes perfect sense. However, I came up with this (most likely false) proof that says that they're countable. Chances are, I made a mistake and the proof doesn't ... | |
Torchlight Infinite Fate Card
List of Torchlight Infinite Fluorescent Memory Shards
IconNameDescription
Miner's Surprise
Collect 5 to exchange for random Ember x3 from the Spacetime Wanderer
Secret of the Glacial Abyss
Collect 3 to exchange for random Flame x5 from Spacetime Wanderer
Crow's Wail
Collect 4 to exchange... | |
# Homework Help: Financial math problems
1. Aug 11, 2010
### dragonfly1
calculating returns:
suppose you bought a 7 percent coupon bond one year ago for $893. the bond sells for$918 today.
a. assuming a \$1000 face value, what was your total dollar return on this investment over the past year.
b.what was your total ... | |
# Forecasting accuracy?
Any thoughts on how far into the future to forecast? I'm working on forecasting our web monthly traffic in R. I'm using Holt-Winters and the dates Jan 2015 - Sep 2017. I want to forecast the next 12 months. I know the further I get out, the less accurate I am. Is there a good rule/ratio to foll... | |
## Populations
In statistics, a population includes all members of a defined group that we are studying for data driven decisions.
### Learning Objectives
Give examples of a statistical populations and sub-populations
### Key Takeaways
#### Key Points
• It is often impractical to study an entire population, so we... | |
# Help with free body diagram for a pendulum
1. Apr 5, 2015
### theone
1. The problem statement, all variables and given/known data
I want to sum the forces perpendicular to the pendulum and sum the moments about the pendulums center of gravity.
2. Relevant equations
3. The attempt at a solution
$P\sin \theta - mg... | |
# audioPackFormat (HOA)
The audioPackFormat with typeDefinition 'HOA' is used for scene-based audio (such as Higher Order Ambisonics). Many audioPackFormat definitions with the 'HOA' type are already defined in the Common Definitions, so they do not need to be defined explicitly when generating ADM metadata.
It is co... | |
# Integrate (sin x^4)
1. Jan 2, 2006
### teng125
may i know how to integ (sin x^4) ??
the answer is 1/32(12x - 8sin 2x + sin4x)
2. Jan 2, 2006
### VietDao29
Again, you can use Power-reduction formulas. Then use some Product-to-sum identities, your goal is convert that sin(x) to the power of 4 into some sine or c... | |
OBJECTIVES:
To quantify the prevalence of parental vaccine hesitancy (VH) in the United States and examine the association of VH with sociodemographics and childhood influenza vaccination coverage.
METHODS:
A 6-question VH module was included in the 2018 and 2019 National Immunization Survey-Flu, a telephone survey ... | |
# MATLAB: Signal Processing – Cross-Correlation to obtain Lag times.
xcorr
I have written code that produces a graph giving the xcorr coeff of two stochastic electromyogram signals: sEMGL and sEMGbR. % x=(sEMGL); y=(sEMGbR); [c,lags]=xcorr(x,y,'coeff'); figure (8); plot (c,lags) % My question is how to write code in ... | |
# Thread: I need to HTML-ize this
1. ## I need to HTML-ize this
I have an image that I'm having trouble coming up with alt text for. Any ideas would be appreciated.
http://picpaste.com/image009-JLRWeRmY.png
2. You might need to give us a few more clues here. For a start, what is the image?
3. A Mathematical Formul... | |
# Sequences and Series
Nth Term Test $$\sum\limits_{n=1}^{\infty}a_{n} = ?$$ P Series Test $$\sum\limits_{n=1}^{\infty}\frac{1}{n^p} = ?$$ Infinite Geometric Series Direct Comparison Test Limit Comparison Test Integral Test The Ratio Test $$\lim\limits_{n\rightarrow \infty}\frac{a_{n+1}}{a_{n}}= \text{?}$$ | |
• anonymous
a fraction reduces to 36 if its numerator is (6x)5 , what is its denominator?
Mathematics
Looking for something else?
Not the answer you are looking for? Search for more explanations. | |
# Tons of it!
ISSN: 0043-8022
Publication date: 1 September 2003
## Abstract
#### Citation
(2003), "Tons of it!", Work Study, Vol. 52 No. 5. https://doi.org/10.1108/ws.2003.07952eab.010
### Publisher
:
Emerald Group Publishing Limited
Alumina do Norte do Brasil (Alunorte) has commissioned its third alumina pro... | |
1 answer
# 1. Solve the following initial value problem over the interval from x- 0 to 0.5 with a step size h-0.5
###### Question:
1. Solve the following initial value problem over the interval from x- 0 to 0.5 with a step size h-0.5 where y(0)-1 dy dx Using Heun method with 2 corrector steps. Calculate g for the co... | |
# What are the difference between some basic numerical root finding methods?
I understand the algorithms and the formulae associated with numerical methods of finding roots of functions in the real domain, such as Newton's Method, the Bisection Method, and the Secant Method. Because their formulae are constructed diff... | |
Preparing data for kinship calculations
1
0
Entering edit mode
4 months ago
Hello, I have a merged VCf file and want to find related samples. I want to do this with plink2 --make-king-table. I have 3 questions:
A. As pruning is suggested before performing the analysis, would you also suggest to filter for maf > 1% / ... | |
Why is $f(x)=\int_{1}^{x^2} \frac{\ln(xt)}{1+t}dt$ continuously differentiable and what is it's derivative?
In doing some old exam questions, I came across the following problem. Let $$f:(1,\infty)\rightarrow \mathbb{R}$$ $$f(x)=\int_{1}^{x^2} \frac{\ln(xt)}{1+t}dt$$ Questions:
a) Reason as to why f is continuously d... | |
# Pseudorandom vs quasi-random
I'm implementing an encryption algorithm that requires me to use a random number to mix up the values. However I'm caught in between if I should use quasi-random or pseudorandom.
These are the things I'm thinking about:
1. quasi-random isn't really a random number generator by definiti... | |
# Euler's equations
1. Feb 21, 2008
### ehrenfest
1. The problem statement, all variables and given/known data
Disregard the title of this thread.
Say you have a fixed coordinate system and a rotating coordinate system. Say that the rotating coordinate system rotates with angular velocity $$\vec{\omega}$$. Is it al... | |
# Unsetting messages
The following code suggests that Mathematica stores the messages in cache:
(*1*)Remove[VariationalD]
(*2*)Messages[VariationalD]
(*3*)Message[VariationalD::args, OPS]
(*4*)Messages[VariationalD]
The output of the second line is {} as expected for a symbol that has just been removed. The output ... | |
# Math Help - Standardizing A Random Variable
1. ## Standardizing A Random Variable
Hello,
To standardize a random variable that is normally distributed, it makes absolute sense to subtract the expected value, $\mu$, from each value that the random variable can assume--it shifts all of the values such that the expec... | |
# Need help evaluating a limit
## Homework Statement
Evaluate the limit ##\lim_{x\to0} \frac{1}{x}(\frac{1}{tanx}-\frac{1}{x}) ## using Taylor's formula. (Hint: ##\frac{1}{1+c}=\frac{1-c^2+c^2}{1+c} ## may be useful)
## The Attempt at a Solution
I began by substituting ##tanx## with ##x+\frac{x^3}{3}+x^3ε(x)##, whe... | |
I am working on the vibration of the continuous system, I have seen lots of books on vibrations which talks about the natural frequency and mode shapes of the continuous system. I am interested in finding when particular time varying load is applied on continuous system how do we know which modes of the systems are exc... | |
# Simple Pendulum Lab Report Conclusion
It is often helpful to formulate conclusion using phrases such as \the lab report and. Read this essay on Pendulum Lab Report. When shifted from its starting position to an initial angle and released, the pendulum swings back and forth freely with periodic motion. This document ... | |
Given the following table:
x 0.0026 0.0027 0.0028 0.0029 0.003 f(x) 0.00260676 0.00270729 0.00280784 0.00290841 0.003009
Use the table to find the largest $\delta$ so that $\vert f(x)-f(0.0028)\vert <0.00027$ when $\vert x-0.0028\vert < \delta$.
$\delta =$
To obtain more precise information about the value of $f$ ne... | |
# American Institute of Mathematical Sciences
• Previous Article
Stochastic comparisons of series-parallel and parallel-series systems with dependence between components and also of subsystems
• JIMO Home
• This Issue
• Next Article
Optimal lot-sizing policy for a failure prone production system with investment in pro... | |
From: Pen Ttt on 14 Apr 2010 01:18 there is one commade: '["ffgh"]78'.split(/\[|\]/).reject(&:empty?) i can get two character: "ffgh" 78 but i don't know what is the meaning of : &:empty? 1\what is : 2\what is &: think you for advance. -- Posted via http://www.ruby-forum.com/. From: Brian Candler on 14 Apr 2010 04:45 P... | |
## The Annals of Applied Probability
### Connectivity of soft random geometric graphs
Mathew D. Penrose
#### Abstract
Consider a graph on $n$ uniform random points in the unit square, each pair being connected by an edge with probability $p$ if the inter-point distance is at most $r$. We show that as $n\to\infty$ t... | |
## Great Vova Wall (Version 2) 思维
Vova's family is building the Great Vova Wall (named by Vova himself). Vova's parents, grandparents, grand-grandparents contributed to it. Now it's totally up to Vova to put the finishing touches.
The current state of the wall can be respresented by a sequence a of n integers, with a... | |
Ways to access lists inside lists
I have gone through some reference material but I am not getting really good links that will help me grow understanding of pure functions,patterns and list manipulations combined together. Most of the examples referred in documentation are for single list(without sublists).
For examp... | |
Spying on a Ruby process's memory allocations with eBPF
Today instead of working on CPU profilers, I took the day to experiment with a totally new idea!
My idea at the beginning of the day was – what if you could take an arbitrary Ruby process’s PID (that was already running!) and start tracking its memory allocation... | |
# How to prove the uniqueness theorem in an unbounded domain?
1. Apr 7, 2010
### netheril96
I read a lot of books on the uniqueness theorem of Poisson equation,but all of them are confined to a bounded domain $$\Omega$$ ,i.e.
"Dirichlet boundary condition: $$\varphi$$ is well defined at all of the boundary surfaces.... | |
Definition of Irreducibleness. Meaning of Irreducibleness. Synonyms of Irreducibleness
Here you will find one or more explanations in English for the word Irreducibleness. Also in the bottom left of the page several parts of wikipedia pages related to the word Irreducibleness and, of course, Irreducibleness synonyms a... | |
Two objects of mass $$10$$ kg and $$20$$ kg respectively are connected to the two ends of a rigid rod of length $$10$$ m with negligible mass. The distance of the center of mass of the system from the $$10$$ kg mass is:
1. $$5$$ m
2. $$\frac{10}{3} \mathrm{~m}$$
3. $$\frac{20}{3} \mathrm{~m}$$
4. $$10$$ m
Subtopic: Ce... | |
# Should I apply my treatment as a continuous gradient, or in blocks?
I am designing an experiment, and am looking for advice on how to apply my treatment most efficiently.
I'll give an example to explain. My response is car efficiency - how many miles per gallon of fuel the car uses. I have two groups of cars - one ... | |
What probability indicates the p-value? (more than one answer possible)
a: The probability of a type I error.
b: The probability of a type II error.
c: The probability of rejecting the alternative hypothesis when it is false.
d: The probability of rejecting the null hypothesis when it is false.
I think None of the... | |
# qiskit.circuit.library.MCXGate.get_num_ancilla_qubits¶
static MCXGate.get_num_ancilla_qubits(num_ctrl_qubits, mode='noancilla')[ソース]
Get the number of required ancilla qubits without instantiating the class.
This staticmethod might be necessary to check the number of ancillas before creating the gate, or to use th... | |
# Surviving Frostbite in the Cryptocurrency Market: Find the Simple and Manage Complex Assets
2018 has been a havoc-ridden year for the cryptocurrency market, going from the jubilant highs of December 2017 to January, and falling from that gracious point ever since. Now, with December 2018 been and gone, we're reminde... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.