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Two thin long parallei wires separated by a distance $b$ are carrying a current $I$ ampere each. The magnitude of the force per unit length exerted by one wire on the other, is
$\begin{array}{llll}\text { (a) } \frac{\mu_{0} I^{2}}{b^{2}} & \text { (b) } \frac{\mu_{0} I}{2 \pi b^{2}} & \text { (c) } \frac{\m... | {} |
# Determinant of a 3x3 matrix
Find the determinant of a given 3x3 matrix.
### Problem
What is the determinant of ?
Get 3 answers correct in a row | {} |
If A = {a, b, c}, find P(A) and n{P(A)}.
Question:
If A = {a, b, c}, find P(A) and n{P(A)}.
Solution:
The collection of all subsets of a set A is called the power set of A. It is denoted by P(A).
Now, We know that $\phi$ is a subset of every set. So, $\phi$ is a subset of $\{a, b, c\}$.
Also, $\{a\},\{b\},\{c\},\{... | {} |
# Posts Tagged ‘ graphs ’
## Le Monde puzzle [48]
December 1, 2010
By
$Le Monde puzzle [48]$
This week(end), the Le Monde puzzle can be (re)written as follows (even though it is presented as a graph problem): Given a square 327×327 symmetric matrix A, where each non-diagonal entry is in {1,2,3,4,5} and , does there ... | {} |
## ARINSA news postings
### Angolans' seized cash, car forfeited to state
by Kudzai Chinoda -
Number of replies: 0
### Angolans' seized cash, car forfeited to state
News - National
by Werner Menges
THREE Angolans convicted of money laundering and entering Namibia illegally after the police at Otjiwarongo found mo... | {} |
DjangoCMS plugin to write equations, utilizing KaTeX
djangocms-equation
DjangoCMS plugin to write equations, utilizing KaTeX
Features
• Enables the use of LaTeX for equations with django-cms
• Live editing of LaTeX Code, via KaTeX
• Out of the box support for mhchem
• Configurable allowing of copying of equation La... | {} |
The future of academic freedom and the curious, disturbing case of Derek Pyne:
theglobeandmail.com/opinion/ar
Unless the story has another side that we haven't heard, it's quite disturbing: Derek Pyne, an econ professor at Thompson Rivers University in Canada, published a peer-reviewed study showing that many of his c... | {} |
## CryptoDB
### Paper: Covering Radius of the $(n-3)$-rd Order Reed-Muller Code in the Set of Resilient Functions
Authors: Yuri Borissov An Braeken Svetla Nikova URL: http://eprint.iacr.org/2004/202 Search ePrint Search Google In this paper, we continue the study of the covering radius in the set of resilient functio... | {} |
How to prove that the decidable languages are closed against iteration only by enumerators?
We have the $L\in R$, how can we prove that $L^*\in R$ only by enumerators?
I try to use induction, but as I understand I wrong...
I'd like to get any help!
• What have you tried? Where did you get stuck? We do not want to ju... | {} |
What is predicate lifting?
I have tried and tried again to understand coalgebraic logic (generalization of modal logics) but I can not understand the notions "predicate lifting" and "relation lifting". Are there explanations and illustrations for those notions, is this notion used outside coalgebraic logics community?... | {} |
Art of singular vectors and universal adversarial perturbations
# Art of singular vectors and universal adversarial perturbations
## Abstract
Vulnerability of Deep Neural Networks (DNNs) to adversarial attacks has been attracting a lot of attention in recent studies. It has been shown that for many state of the art ... | {} |
multiply imputed
1. Obtaining population estimates for multiply imputed survey data
My data is mi set (multiply imputed) and I am analyzing it using the mi commands. It is survey data, so it is also svyset. I can see that mi commands allow one to obtain proportions, ratios, and means using the command structure "mi e... | {} |
# [NTG-context] Typesetting chemical reaction equations
Ville Voipio ville.voipio at kpatents.com
Fri Jan 27 16:52:25 CET 2006
I would need to typeset some rather simple reaction equations. I do not
need the structural capabilities of PPCHTeX, just something simpler. The
thing I am writing has something to do with ph... | {} |
Math Help - Sombrero function
1. Sombrero function
What class of functions can be defined "sombrero function" ?
Can I write the classic sombrero function $f(r,\theta) = \frac{sin(r)}{r} \quad for \quad r\neq0$
in rectangular expression ? $f(x,y) = \frac{sin(\sqrt{x^2+y^2})}{\sqrt{x^2+y^2}} \quad for \quad x^2+y^2\neq... | {} |
This Forum is in read only mode now.
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# weak test cases in march cook off MARCAPS
5 After looking at many solutions accepted in MARCAPS in march cook off i noticed that many of them fail simple test cases like: 1 9 1 1 1 2 2 2 5 6 7 Kindly look into the matter. asked 25 Mar, 00:50 6★nic6200 50●2 accept rate: 0% 1 ... | {} |
# Natural $\Pi_1$ sentence independent of PA
Order invariant graphs and finite incompleteness by Harvey Friedman gives an example of a combinatorial/non-metamathematical $$\Pi_1$$ sentence that is independent of ZFC. Is there a simpler example of a combinatorial/non-metamathematical $$\Pi_1$$ sentence that is independ... | {} |
# zbMATH — the first resource for mathematics
Ladder heights, Gaussian random walks and the Riemann zeta function. (English) Zbl 0880.60070
Summary: Let $$\{S_n: n\geq 0\}$$ be a random walk having normally distributed increments with mean $$\theta$$ and variance 1, and let $$\tau$$ be the time at which the random wal... | {} |
# nLab splicing of short exact sequences
Contents
### Context
#### Homological algebra
homological algebra
Introduction
diagram chasing
# Contents
## Definition
Given a sequence of short exact sequences of the form
$0 \to X_n \overset{i_n}{\longrightarrow} Y_n \overset{p_n}{\longrightarrow} X_{n+1} \to 0$
fo... | {} |
Physical Quantities
Physical Quantities
1. A physical quantity is a quantity that can be measured.
2. A physical quantity can be divided into base quantity and derived quantity.
Base Quantities
1. Base quantities are the quantities that cannot be defined in term of other physical quantity.
2. The 5 base quantities ... | {} |
# A question with a time dependent Hamiltonian
1. Nov 24, 2012
### dEdt
To cut to the chase, I have to solve for the evolution of a two-state system where the system's state at time t satisfies the equation
$$\mathrm{i}\hbar\left( \begin{array}{cc} \dot{c}_1(t)\\ \dot{c}_2(t) \end{array} \right)=\left( \begin{array}... | {} |
24 terms
# Chapter 1 Test (Lantrip)
This is the first chapter of Algebra 2 with Trigonometry Houghton Mifflin Text Book. This set of flash cards is composed of the axioms which the book indicates in red
#### Terms in this set (...)
a+b is a unique real number
Closure Axiom for Addition
(a+b) + c = a + (b+c)
Associa... | {} |
## Encyclopedia > July 6
Article Content
# July 6
July 6th is the 187th day of the year (188th in leap years) in the Gregorian Calendar, with 178 days remaining.
Table of contents
See Also:
All Wikipedia text is available under the terms of the GNU Free Documentation License
Search Encyclopedia
Search over one... | {} |
# 8.38 What can be inferred from the magnetic moment values of the following complex species ?Example Magnetic Moment (BM)$K_{4}[Mn(CN)_{6})$ 2.2$[Fe(H_{2}O)_{6}]^{2+}$ 5.3$K_{2}[MnCl_{4}]$ ... | {} |
# [metapost] Metapost online, but mproof failed
Dan Luecking luecking at uark.edu
Thu Nov 17 22:08:44 CET 2011
At 08:20 PM 11/17/2011, you wrote:
>Hi,
>
>my mp goes here, thanks for your kind hearted help, it can work with mpost now
>
>The problem is that
>tex mproof chapter_1-1.eps
>
>still caught an error, but
>(p... | {} |
# Complex numbers - I'm sure this is an easy - Argand diagram
1. Oct 3, 2015
### laura_a
1. The problem statement, all variables and given/known data
OABC is a square on an Argand diagram. O Represents 0, A represents -4 + 2i, B Represents z, C represents w and D is the point where the diagonals of the square meet. ... | {} |
# Convergence results related to the equalizing property in a Markov decision process
L.P.J. Groenewegen
## Abstract
In this paper we consider a Markov decision process with countable state and time spaces. Rewards have the so called charge structure and the optimality criterion is the total expected reward. It is p... | {} |
# qiBuild and qmake ¶
## Introduction ¶
This section is targeted towards qmake users wanting to know more about qiBuild
## General comparison ¶
Both frameworks try to be usable on as much as platforms as possible
## What is in qmake and not in qiBuild ¶
• Nice integration is some IDEs (QtCreator mostly)
## What ... | {} |
# Empty slide content using beamer, xelatex, tikzexternal, and custom frame title with images
it's taken me a bit to determine the root cause of this problem, but beamer slides generated using xelatex and tikzexternalize with a custom frame title containing images does not work. the generated slides do not contain any... | {} |
Still have questions? Join our Discord server and get real time help.
0
# Why does the block just sit in place and not change a thing?
I cant runt he script in studio to see the error becuz it will crash studio :/
Script is supposed to assign a name to the string value and change text in places and then go down and ... | {} |
2 edited body edited Mar 26 '17 at 21:30 freecharly 13.9k22 gold badges88 silver badges3131 bronze badges The easiest way to solve this problem ist to use Thevenin's theorem for the open terminals which arise when you cut open the circuit where the resistance $$R_3$$ is inserted. It is easily seen that the Thevenin vol... | {} |
My Math Forum Dimensional Analysis - what am I doing wrong?
User Name Remember Me? Password
Algebra Pre-Algebra and Basic Algebra Math Forum
August 18th, 2016, 07:01 AM #1 Newbie Joined: Aug 2016 From: woodstock Posts: 2 Thanks: 0 Dimensional Analysis - what am I doing wrong? I have worked this problem and can't... | {} |
# Two-dimensional explosion
We solve the Euler equations for a compressible gas.
``````#include "compressible.h"
``````
We make boundary conditions free outflow.
``````w.y[top] = neumann(0);
w.y[bottom] = neumann(0);
w.x[left] = neumann(0);
w.x[right] = neumann(0);``````
The domain spans $\left[-1:1\right]×\... | {} |
Subscriber Authentication Point
Free Access
Issue A&A Volume 572, December 2014 A111 11 The Sun https://doi.org/10.1051/0004-6361/201423731 04 December 2014
## 1. Introduction
Type III solar radio bursts, easily identified by their high brightness temperatures and rapid frequency drift, are a common signature of fas... | {} |
# Electric field strength in a square.
1. Jun 4, 2006
### al_201314
Hi guys,
Suppose I have a point O in the centre of the square (of side length X), where the top 2 corners of the square carries a positive charge each and the bottom left corner a negative charge and the bottom right corner a positive charge, what ... | {} |
# [tex-live] texlive and powerdot
bob rjerrard at math.concordia.ab.ca
Thu Jun 7 05:22:10 CEST 2007
```On Wed, 2007-06-06 at 19:29 +0200, Harald Hanche-Olsen wrote:
> + Robert Jerrard <rjerrard at math.concordia.ab.ca>:
>
> | \documentclass[]{powerdot}
> |
> | ERROR: Undefined control sequence.
> |
> |
> | l.31 \pdde... | {} |
# Incident and reflected waves
Let's consider a transversal wave on a string, which is reflected on a wall. I understand that the velocity of the incident and reflected wave are equal. However, I don't understand why the frequencies of both waves are the same. Can anyone please explain this fact?
• Is this about elec... | {} |
# Completion of spaces of measures w.r.t. weak norms
My question is:
### What is the completion of $M_0(X)$ w.r.t. $\norm{\cdot}_0^*$?
I would like some description as a dual space or derived from some space of measures.
It feels like it should be something like a dual space of differentiable functions, or derivat... | {} |
(a) The Schrodinger wave equation for hydrogen atom is: ψ_(2s) = 1/(4(2π)^(1/2))(1/a_0)^(3/2)(2−r/a_0)e^(-r//2a_
### Question Asked by a Student from EXXAMM.com Team
Q 2578167906. (a) The Schrodinger wave equation for hydrogen atom is:
ψ_(2s) = 1/(4(2π)^(1/2))(1/a_0)^(3/2)(2−r/a_0)e^(-r//2a_0)
where a_0 is Bohr... | {} |
By
"An account of some experiments shown before the Royal Society; with an enquiry into the cause of some of the ascent and suspension of water in capillary tubes,", "An account of some new experiments, relating to the action of glass tubes upon water and quicksilver,", "An account of an experiment touching the direct... | {} |
## Indefinite Integral question
Hi!
I am stuck with this integration problem:
$$\int{\frac{cos 5x+cos 4x}{1-xcos3x}}$$
Recognitions: Homework Help Science Advisor Are you sure that's the right integrand?
yes that's the sum alright.
Recognitions:
Gold Member
Homework Help | {} |
## Magic Shape
### What is Magic Shape?
Magic Shape is the final project for my Human Computer Interaction class at Baylor. It is a solid geometry edutainment application for children using tangible augmented reality.
This article describes the development of the Magic Shape prototype. The purpose of Magic Shape is ... | {} |
## Find the greatest common factor (GCF/HCF) of the polynomials $2x^3y^2, 10x^2y^3$ and $14xy$.
Updated on 02-Apr-2023 14:39:03
Given:Given polynomials are $2x^3y^2, 10x^2y^3$ and $14xy$.To do:We have to find the greatest common factor of the given polynomials.Solution:HCF:A common factor of two or more numbers is a f... | {} |
Journal topic
Atmos. Chem. Phys., 19, 13309–13323, 2019
https://doi.org/10.5194/acp-19-13309-2019
Atmos. Chem. Phys., 19, 13309–13323, 2019
https://doi.org/10.5194/acp-19-13309-2019
Research article 28 Oct 2019
Research article | 28 Oct 2019
Air quality and acid deposition impacts of local emissions and transboundar... | {} |
# How to stabilize a video using FFmpeg and vid.stab
Submitted by Nicola Rainiero on 2019-07-22 (last updated on 2019-07-23)
Recently I have refurbished my HTC Re Camera, an old instant camera, because I wanted to make some videos. The results were very devastating: I discovered that I have a shaky hand! Fortunately ... | {} |
Which of the following compounds dues not show lassaigne's test for nitrogen ?
(a) Urea
(b) Hydrazine
(c) Phenylhydrazine
(d) Azobenzene
Hydrazine $(NH_2NH_2)$ does not contain and hence no fusion with Na metal , it cannot form $NaCN$ .
Therefore , hydrazine does not show lassaigne's test,
Hence b is the correct a... | {} |
01_tutorial_getting_started.ipynb 223 KB
Martin Bauer committed Mar 21, 2019 1 2 3 4 5 6 7 8 { "cells": [ { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [], "source": [ Markus Holzer committed Feb 10, 2022 9 10 11 12 13 "import pystencils as ps\n", "from pystencils import plot as plt\n", "\n... | {} |
# Inconsistency Between Analysis and Simulation Results of Fourier Transform of a Sinc Function
First of all, hello.
This question is about a problem that I’ve faced during an attempt to obtain both time and frequency responses of a sinc function in MATLAB. The problem is an inconsistency between my calculations that... | {} |
Find the viscosity coeffienct of glycerol, using stokes law
1. Jun 3, 2014
RoryScanlan
1. The problem statement, all variables and given/known data
I have been given an experiment to perform, whereby I drop steel ball bearings into a glass measuring cylinder, and time how long it takes for the ball bearing to fall ... | {} |
# Delta V to get to the Sun-Earth Lagrange Point 1?
For any of these starting positions, GEO, GTO, EM-L2 or EM-L4/5, which would require the least delta-V to get to Sun-Earth L1? How much delta-V would it require?
Would this chart help in identifying which delta-V would most likely fit the requirements stated?
$$\rm... | {} |
# American Institute of Mathematical Sciences
• Previous Article
Financing strategy selection and coordination considering risk aversion in a capital-constrained supply chain
• JIMO Home
• This Issue
• Next Article
Analysis of dynamic service system between regular and retrial queues with impatient customers
doi: 10.3... | {} |
Chapter 9, Problem 3P
### Intermediate Accounting: Reporting...
3rd Edition
James M. Wahlen + 2 others
ISBN: 9781337788281
Chapter
Section
### Intermediate Accounting: Reporting...
3rd Edition
James M. Wahlen + 2 others
ISBN: 9781337788281
Textbook Problem
94 views
# Trade Note Transactions Adjusto Corporation (w... | {} |
# ORCS Multidimensional Aggregation Service
## Overview
The ORCS service provides users with an overview of historical evolution of an order book. It delivers information about changes of an order book in the course of a time period while minimizing transferred volume by aggregating data.
A one-day order book for AA... | {} |
• 글쓴이
• 날짜 2020년 12월 22일
perimeter of sector
An equation is easy to construct based on the data given. If and the area of the sector is and the perimeter … A sector of a circle is like a slice of pizza or pie. The perimeter of the sector includes the length of the radius $\times 2$, as well as the arc length.So the p... | {} |
## How does cost function change by choice of activation function (ReLU, Sigmoid, Softmax)?
0
I am new to ML and as I take courses for the area DL, I am wondering, by our choice of activation function for the last layer, whether we take sigmoid, relu or softmax, would the formula for calculation of cost function chan... | {} |
# 1D heat-transfer in spherical annulus, encountering "Can't add expressions with different shapes"
Dear All
I am trying to solve the heat-transfer problem in a spherical annulus, by assuming that the temperature varies only along the radial direction, and has neither \theta nor \phi dependence. I am considering Diri... | {} |
# Kalman, state-space model
1. Aug 19, 2008
### mr.t
1. The problem statement, all variables and given/known data
A time discrete stocastic signal is described by
$$s(k) = w(k-1) + aw(k-2)$$, |a|<1
and w(n) is white gaussian noise with $$m_w = 0, \sigma_w^2 = 1$$. It is observed under influence of white noise:
$$y(k... | {} |
CDF CHAMPs Search
Under some circumstances, new massive particles arising from physics beyond the Standard Model will have lifetimes that are long compared to the transit time through the detector. In these cases, direct searches for decay products will fail, and the limits obtained will not hold. If such a particle i... | {} |
# Exercises - One Way Analysis of Variance (ANOVA)
1. A researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for 6 weeks. The weight gains (in pounds) are given. Assume weight... | {} |
Main > Chinese Optics Letters > Volume 18 > Issue 11 > Page 110201 > Article
• Abstract
• Abstract
• Figures (5)
• Tables (1)
• Equations (7)
• References (34)
• Get PDF
• View Full Text
• Paper Information
Accepted: Jul. 23, 2020
Posted: Sep. 23, 2020
Published Online: Sep. 24, 2020
The Author Email: Lihua Bai ... | {} |
# Definition of limit reversed
1. Feb 3, 2010
### lith101
so i have a question. If you reverse the definition of limit, does the error change the meaning?
original: for each epsilon>0, there exists a delta>0, such that if 0<|x-c|<delta, then |f(x)-L|<epsilon.
with an error: for each delta>0, there exists an epsilo... | {} |
# Khosla-Backed Calera Scoops Up $19M for Carbon Recycling Calera Corp., a startup working to capture emissions from industrial flues and recycle it into pavement and building materials, has made it to the second phase of a competitive government program for carbon capture projects. The Department of Energy announced o... | {} |
# Cartograms of New Zealand census data
## At a glance:
Choropleth maps are useful ways of using fill colour to show densities, proportions and growth rates by political or economic boundaries, but can be visually problematic when large geographic areas represent few people, or small areas (ie cities) represent many.... | {} |
# Fight Finance
#### CoursesTagsRandomAllRecentScores
Scores keithphw $5,521.61 Visitor$3,006.43 skanibaglu $2,328.63 DanielDng$2,300.70 boodge $1,798.63 oosterhoff$1,647.00 emmarose... $1,567.43 Fauzan A...$1,390.00 Visitor $1,322.80 mainguye...$1,269.43 Visitor $1,008.63 xinerator$950.00 Visitor $930.00 xinerator$... | {} |
Ducted fan aircraft
Help Support Homebuilt Aircraft & Kit Plane Forum:
Lendo
Well-Known Member
Vigilant1, "This little pusher" reminds me of a bigger twin Boom version of the new Zealand Snark. I actually like it.
George
Hephaestus
Well-Known Member
Isn't it the AHRLAC from South Africa?
Urquiola
Well-Known Memb... | {} |
# How do you find the magnitude <3,4>?
$| < 3 , 4 > | = \sqrt{{3}^{2} + {4}^{2}} = \sqrt{9 + 16} = \sqrt{25} = 5$ | {} |
# Redirecting subprocesses' output (stdout and stderr) to the logging module
I'm working on a Python script and I was searching for a method to redirect stdout and stderr of a subprocess to the logging module. The subprocess is created using the subprocess.call() method.
The difficulty I faced is that with subprocess... | {} |
###### Example7.4.2
Expand the expression $$(px+q)(rx+s)$$ and analyze the result to gain an insight into why the AC method works. Then use this information to factor $$4x^2+5x-6\text{.}$$
Solution
in-context | {} |
## anonymous 4 years ago The graph of the function y=e^(-x^2/2) isn't the same as the graph of the function y=e^(-x) is it because that the first expression wants a positive value of all x? And does anyone know d/dx (x^2-1)e^(-x^2/2)?
1. anonymous
Both $f(x)=e^{(-x^2/2)}$$y=e^{-x}$may have negative value for x. Follo... | {} |
Physics in a nutshell
$\renewcommand{\D}[2][]{\,\text{d}^{#1} {#2}}$ $\DeclareMathOperator{\Tr}{Tr}$
# Close Packed Structures: fcc and hcp
## Close Packing of Spheres
### Two Dimensions
One can easily see that the closest packing of spheres in two dimensions is realised by a hexagonal structure: Each sphere is in... | {} |
To John St Barbe1 [before 3 July 1862]2
Dear Sir—
I wish to invest through the Union Bank about £17,000 in Railway Shares.3 if I can find shares that suit me. Under these circumstances, I trust you will not think it unreasonable in me to request, through you, from the gentleman, who acts as your Broker, some carefu... | {} |
Exact Post-Selection Inference for Changepoint Detection and Other Generalized Lasso Problems
# Exact Post-Selection Inference for Changepoint Detection and Other Generalized Lasso Problems
## Abstract
We study tools for inference conditioned on model selection events that are defined by the generalized lasso regula... | {} |
## Access
You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
# Universality of the Closure Space of Filters in the Algebra of All Subsets
Andrzej W. Jankowski
Studia Logica: An International Journal for Symbolic Logic
Vol. 44, No. 1 (1985), p... | {} |
# If You Want Good Science, Who Better to Ask Than Barret Brown?
Barrett Clown, oh pardon me, Barrett Brown, thinks he makes an argument against ID by humor and satire alone here at The Huffington Post. He is, after all, to be taken deadly seriously, he’s written for National Lampoon for goodness sakes and written a b... | {} |
(solved)Question 2.8 of NCERT Class XI Chemistry Chapter 2
What is the number of photons of light with a wavelength of 4000 pm that provide 1J of energy?
(Rev. 20-Nov-2022)
Categories | About Hoven's Blog
,
Question 2.8 NCERT Class XI Chemistry
What is the number of photons of light with a wavelength of 4000 pm th... | {} |
FriconiX
Free collection of beautiful vector icons for your web pages.
# Single layer classification example
## Problem statement
In this example, we consider a dataset where each input vector $$X = ( x , y)$$ is assocated to a class A or B respectively with values of +1 and -1. The following figure illustrates the ... | {} |
# Math Help - [SOLVED] graph and label the following linear equations
1. ## [SOLVED] graph and label the following linear equations
2y-x=6
7x+3=-2y=3
y=1/2x-4
2. Originally Posted by medicinewoman
2y-x=6
7x+3=-2y=3
y=1/2x-4
Hello,
1. there must be a typo in the second line.
2. Could you please tell us what are... | {} |
## How exactly should I learn
General discussion about LÖVE, Lua, game development, puns, and unicorns.
xNick1
Party member
Posts: 259
Joined: Wed Jun 15, 2016 8:27 am
Location: Rome, Italy
### Re: How exactly should I learn
If you wanna learn how to make a game you have to start making a game. Step by step you'll h... | {} |
# Connected simple cubic graph
I am trying to understand this problem and yes this is from my assignment and I should be doing it myself, but I have been staring at it for 2 hours and not getting anywhere, so decided to post it here.
Let G be a connected cubic simple graph that contains 2 edge-disjoint spanning trees... | {} |
Monday, October 3, 2011
Slicing and dicing validity: existing ideas
This is a story of modal logic and the judgmental methadology, a style of presenting and justifying logic that Pfenning and Davies [1] adapted from Martin Löf's Siena Lectures [2] and which was, in turn, adapted by Bernado Toninho and I [3]. My goal ... | {} |
# Outlier detection in seasonal time series via forecasting with ARIMA model
I am trying to find Outliers in a contextual time series data using ARIMA model.
My data contains the Hourly Average Speed and Volume of vehicle traffic for two months. So, day 1 (say Monday) would have 24 observations and so on. There is se... | {} |
# Model approach for extending Dynamic Linear Models - Nested Regression Relationships
I have three multivariate random variables $X_t$, $Y_t$, and $Z_t$.
I have been very happily modeling the relationship between $Y_t$ and $X_t$ through a dynamic linear model
$$Y_t = X_t\beta_t + v_t$$ $$\beta_t = \beta_{t-1} + w_t... | {} |
# A Possible Period for the K-Band Brightening Episodes of GX 17+2
Article (PDF Available)inThe Astrophysical Journal 701(2):L110 · August 2009with12 Reads
DOI: 10.1088/0004-637X/701/2/L110 · Source: arXiv
Abstract
The low mass X-ray binary and Z source GX 17+2 undergoes infrared K-band brightening episodes of at leas... | {} |
## Comparison principles and Liouville theorems for prescribed mean curvature equations in unbounded domains.(English)Zbl 0705.49022
The purpose is to give some comparison principles and Liouville theorems for prescribed mean curvature equations in unbounded domains.
Let $$\Omega \subset {\mathbb{R}}^ 2$$ (bounded or ... | {} |
Project data
Authors Jenna DaveyKaren DuarteRichard ThompsonCaleb Wegner Arcata, California Deployed 2016 USD 83.88 Rainwater catchment Download Upload your project too!body.poncho-dark-mode .mw-parser-output .mw-ui-button{background:#303134;border-color:#3c4043;color:#bdc1c6}@media screen and (max-width:500px){.mw-par... | {} |
# Why is the preservation of identities a funtoriality axiom?
I'm a newbie at category theory and just started reading Emily Riehl's Category Theory in Context. I got to the definition of functors, which contains the following two axioms: if $$F:C\to D$$ is a functor between categories, then
• For every composable pa... | {} |
Blog
# Quantum Computing and the Suez Canal
9
September
,
2021
Yuval Boger
On March 23, 2021, the Ever Given container ship became wedged in the Suez Canal, blocking all maritime traffic. It remained stuck for six days until partially released. A day before its release, over 350 ships were waiting to pass through th... | {} |
Detailed proof of Theorem 2.1 in Papadimitrou book (Multitape TM to SingleTape TM)
I want to know if anybody knows a detailed proof of Theorem 2.1 of Papadimitrou's book Computational Complexity. The theorem states "Given any $$k$$-string Turing machine $$M$$ operating within time $$O(f(n))$$, we can construct a Turin... | {} |
# Local Single Ring Theorem
Abstract : The Single Ring Theorem, by Guionnet, Krishnapur and Zeitouni, describes the empirical eigenvalues distribution of a large generic matrix with prescribed singular values, i.e. an $N \times N$ matrix of the form $A=UTV$, with $U, V$ some independent Haar-distributed unitary matric... | {} |
Where do the factorials come from in the taylor series?
Unfortunately, I don't have much detail to give here. But is the general idea to cancel out the constant obtained from taking the derivative.
For instance, say my function was $f(x)=f_o+f_1x+f_2x^2+...$
Then $f'(x)=f_1+2f_2x+...$
And if the expansion is center... | {} |
The current GATK version is 3.7-0
Examples: Monday, today, last week, Mar 26, 3/26/04
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#### The product of the perpendiculars drawn from the foci of the ellipse , upon the tangent to it at the point Option 1) Option 2) Option 3) Option 4)
As learnt in
Foci of Ellipse -
The two fixed points on the ellipse.
- wherein
Product of perpendicular drawn from foci is always = b2
In ellipse ;
Hence produ... | {} |
g01 Chapter Contents
g01 Chapter Introduction
NAG C Library Manual
# NAG Library Function Documentnag_deviates_f_dist (g01fdc)
## 1 Purpose
nag_deviates_f_dist (g01fdc) returns the deviate associated with the given lower tail probability of the $F$ or variance-ratio distribution with real degrees of freedom.
## 2 ... | {} |
## 16.8 Warmup: reduction to a base field
In this section we apply the lemmas in the previous sections to prove that it suffices to prove the main result when the base ring is a field, see Lemma 16.8.4.
Let $R \to \Lambda$ be as in Situation 16.8.1. We say PT holds for $R \to \Lambda$ if $\Lambda$ is a filtered colim... | {} |
# Find equation of the tangent line, given a point at which the function is undefined?
So the question asks me to find the equation of the tangent line passing through the point (1,-4) given this function. Isn't it undefined at x=1, so where do they get the value of -4 in the first place?
I took the derivative of the... | {} |
# Why do we define ordinals the way we do?
I am studying set theory and have recently encountered the concept of ordinals. The way I understand them, we are trying to classify all well ordered sets (which have desirable inductive properties) into equivalence classes w.r.t. a relation that preserves the order structure... | {} |
# Completely metrizable space
The set ${\displaystyle \mathbb {Q} }$ of rational numbers is an example of a topological space that is metrizable but not completely metrizable. | {} |
# What is the z-score of X, if mu= 24, SE =3, and X =31?
$z = 2.33$
$z = \frac{x - \mu}{S E} = \frac{31 - 24}{3} = \frac{7}{3} = 2.33$ | {} |
# Revision history [back]
It seems that no one of the moderators is willing to go through the above simple chunk of text from the sage environment. This is why I am going to simplify the question (it can be seen easily from the above text that the question essentially remains the same).
Why after typing in the sage e... | {} |
It is currently 21 Oct 2017, 11:30
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Math Central Quandaries & Queries
Question from jp, a student: you pay $.50 and pick a four-digit number. The state chooses a four-digit number at random and pays you$2500.00 if your number i chosen. What are the expected winnings from a $.50 Pick 4 wager? Hi JP. The quick answer is that you can't "expect... | {} |
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