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## Description
Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root.
Example: Given a binary tree
1
/ \
2 3
/ \
4 5
Return 3, whi... | |
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very small win32 programs with vc++.
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trigger 123
hi all! just some days ago i compiled a program with an empty WinMain function. *shock* totally 24kb exe file only for an empty WinMain program!? after asking ... | |
## Communications in Applied Analysis
### An International Journal for Theory and Applications
Short Title: Commun. Appl. Anal. Publisher: Dynamic Publishers, Atlanta, GA ISSN: 1083-2564 Online: https://acadsol.eu/caa/contentshttp://www.dynamicpublishers.com/CAA/caacontent.htm Comments: No longer indexed; This journ... | |
# Continuity And Differentiability NCERT Solutions : Class 12 Maths
## NCERT Solutions for Class 12 Maths : Continuity And Differentiability
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### NCERT Class 12 | CONTINUITY AND DIFFERENTIABILITY | Solved... | |
# If f(x)= 2x sin(x) cos(x), how do you find f'(x)?
May 15, 2015
Use trigonometry (sine of 2x) to rewrite the function first:
$f \left(x\right) = 2 x \sin x \cos x = x \left(2 \sin x \cos x\right) = x \sin \left(2 x\right)$
Now use the product rule and use the chain rule to get:
$f ' \left(x\right) = \left(1\right... | |
# Allen Hatcher
Allen Edward Hatcher (born October 23, 1944) is an American topologist.
Allen E. Hatcher
Allen Hatcher
BornOctober 23, 1944
NationalityAmerican
Alma materStanford University
Scientific career
FieldsMathematics
InstitutionsCornell University
Doctoral students
## Biography
Hatcher received his Ph.D. u... | |
# Infinite Square Well
1. May 1, 2010
### Slayer537
I've been working at this problem for about an hour and can't seem to make any progress. Any help would greatly be appreciated.
1. The problem statement, all variables and given/known data
Estimate the ground state energy level of a proton in the Al nucleus which ... | |
# Autocorrelation
Autocorrelation refers to the degree of correlation between the values of the same variables across different observations in the data. The concept of autocorrelation is most often discussed in the context of time series data in which observations occur at different points in time (e.g., air tempera... | |
# Trying to find limit involving continuity concept
1. Jan 27, 2013
### Torshi
1. The problem statement, all variables and given/known data
Find c such that the function f(x) { x^2-9 while x≤ c and 6x-18 x > c } is continuous everywhere.
2. Relevant equations
Given above. Basic algebra.
3. The attempt at a solutio... | |
Browse Questions
# Among the following which has the most polar character.
$(A)\;C-Cl \\ (B)\;C-Br \\(C)\;C-F \\(D)\;C-S$
Since F is most electronegative , therefore $C-F$ bond has more electronegativity difference.
Hence C is the correct answer. | |
## Introduction
This article describes how the factorial and Gamma functions for non-integer arguments where implemented for the big-math library.
For an introduction into the Gamma function see Wikipedia: Gamma Function
## Attempt to use Euler’s definition as an infinite product
Euler’s infinite product definition... | |
Evidence for resonant structures in e^{+}e^{-}\to\pi^{+}\pi^{-}h_{c}
# Evidence for resonant structures in e+e−→π+π−hc
Chang-Zheng Yuan Institute of High Energy Physics,
Chinese Academy of Sciences, Beijing 100049, China
July 15, 2019
###### Abstract
The cross sections of at center-of-mass energies from 3.90 to 4.42... | |
This website uses cookies to ensure you get the best experience. Matrices & … Polynomial long division is very similar to numerical long division where you first divide the large part of the... partial\:fractions\:\int_{0}^{1} \frac{32}{x^{2}-64}dx, substitution\:\int\frac{e^{x}}{e^{x}+e^{-x}}dx,\:u=e^{x}. The definite... | |
# Generalized Empirical Bayes Modeling via Frequentist Goodness of Fit
## Abstract
The two key issues of modern Bayesian statistics are: (i) establishing principled approach for distilling statistical prior that is consistent with the given data from an initial believable scientific prior; and (ii) development of a c... | |
# $\zeta(2)$ via partial fractions
I was looking at old complex analysis exams, and there is one problem I can't figure out.
"Use the partial fraction expansion of $\frac{z}{e^z-1}$ to show $\sum_1^\infty 1/k^2=\frac{\pi^2}{6}$."
I recognize that as the generating function for the Bernoulli numbers, but I think the ... | |
## Real Analysis – Limits and Continuity
— 6. Limits and Continuity —
After introducing sequences and gaining some knowledge of some of their properties (I, II, III, and IV) we are ready to embark on the study of real analysis.
— 6.1. Preliminary Definitions —
Physics is expressed best and most powerfully in the la... | |
# How do you find the magnitude and direction angle of the vector v=3(cos60i+sin60j)?
Oct 26, 2017
$3$
${60}^{o}$ or $\frac{\pi}{3}$ radians
#### Explanation:
To find the magnitude we use a similar idea as used to find the distance between two points.
Magnitude is:
For vector $\underline{c}$ with component vector... | |
# zbMATH — the first resource for mathematics
Nonnegative Ricci curvature and the Brownian coupling property. (English) Zbl 0584.58045
This paper shows that if $$M$$ is a complete Riemannian manifold with Ricci curvatures all nonnegative then $$M$$ has the Brownian coupling property. From this one may immediately draw... | |
## Cryptology ePrint Archive: Report 2007/448
Generalized Correlation and Higher Order Nonlinearity for Probabilistic Algebraic Attacks Description
Sergiy Pometun
Abstract: Abstract. Algebraic attacks are relatively new and interesting subject in cryptanalysis. The algebraic attacks where introduced in [1], where se... | |
# Is this how stars’ right ascensions correlate to planets’ longitudes on a 2d map?
This is my first ever online question, so please bear with me:
I’m working on an A1-sized map of at least 100 of the largest solar system bodies (henceforth just called ‘planets’, ignorning the IAU definition), including moons, spacec... | |
# Function
(Redirected from Functions)
x2 − 5x + 6 = 0 x = ? This article/section deals with mathematical concepts appropriate for a student in mid to late high school.
A function "f" is a fixed method for calculating a unique output "f(x)" for every given input "x". For example, the polynomial function f(x) = x2 ta... | |
# Synopsis: Magnetic joystick
A two-dimensional trap takes advantage of the magnetic domain walls in a narrow wire to guide the thermal motion of magnetic particles.
Magnetic particles can be guided with external fields through small-scale fluidic environments, bringing with them a biological molecule hitching a ride... | |
# Bus Numbers
Find numbers from $10 - 999$ such that the number can be given in the form $x^4 + y^4$ in $n$ distinct ways where $x, y$ are all positive integers.
Make a list.
These are the bus numbers (Reason $1$, those numbers are all bus routes. Reason $2$, I love buses.)
All integers are positive.
Note by Yajat... | |
# Computation Effort of Algorithms
Consider the strictly convex unconstrained optimization problem $\mathcal{O} := \min_{x \in \mathbb{R}^n} f(x).$ Let $x_\text{opt}$ denote its unique minima and $x_0$ be a given initial approximation to $x_\text{opt}.$We will call a vector $x$ an $\epsilon-$ close solution of $\mathc... | |
### DISCLAIMER: Very rough notes from class, with some additional side notes.
These are notes for the UofT course PHY2403H, Quantum Field Theory I, taught by Prof. Erich Poppitz fall 2018.
## Relativistic normalization.
We will continue looking at the generator of spacetime translation $$\hatU(\Lambda)$$, which has ... | |
Article Contents
Article Contents
# Analysis of a corner layer problem in anisotropic interfaces
• We investigate a model of anisotropic diffuse interfaces in ordered FCC crystals introduced recently by Braun et al and Tanoglu et al [3, 18, 19], focusing on parametric conditions which give extreme anisotropy. For a r... | |
# Is true-RMS meter required for audio signals?
Status
Not open for further replies.
#### Elerion
##### Member
I know what true-rms is, but I wonder if it is required to measure a real audio signal.
With "real" I mean a mix of many frequencies, not just a test pure sine wave.
I suppose an average meter should work f... | |
# Problem of dice
The initial purpose of this post was give a proper proof of a problem posted on Twitter by @jamestanton (it is hard within the 140 char limit), but the post was later extended to cover some other problems.
Show that a four-sided and a nine-sided dice cannot be used to simulate the probability distri... | |
## Bresenham’s Pie
29/03/2022
Approximating $\pi$ is always fun. Some approximations are well known, like Zu Chongzhi’s, $\frac{355}{113}$, that is fairly precise (it gives 6 digits).
We can derive a good approximation using continue fractions, series, or some spigot algorithm. We can also use Monte Carlo methods, s... | |
Hong Qi (Cardiff University)
Cosmological Inference using Gravitational Wave Standard Sirens
The observation of binary neutron star merger GW170817 provides the first constraint on the Hubble constant $H_0$ using bright counterpart standard siren method. For the case of a dark standard siren, where an electromagnetic... | |
# Einstein: speed or velocity?
1. Mar 16, 2005
### philosophking
This is an interesting point that I just thought of while listening to one of Einstein's own lectures on his theory of relativity. In it he said that energy is equal to mass times the velocity of light squared.
But doesn't velocity have direction? And... | |
## Results (1-50 of 541 matches)
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Label $\alpha$ $A$ $d$ $N$ $\chi$ $\mu$ $\nu$ $w$ prim arith $\mathbb{Q}$ self-dual $\operatorname{Arg}(\epsilon)$ $r$ First zero Origin
2-1323-1.1-c1-0-1 $3.25$ $10.5$ $2$ $3^{3} \cdot 7^{2}$ 1.1 $$1.0 1 0 0 0.478678 Modular form 1323.2.a.v.1.1 2-1323-1.1-c1-0-11 3.25 10.5 2 3^{3... | |
## Introduction
From simple automatic lights in the halls of our buildings to the cruise control of cars, photodetectors (PDs) are playing a major role in everyday life1. Often, fast detection of faint signals is required, which is currently provided by inorganic avalanche photodiodes2. As the automotive industry is m... | |
3 months ago
## For Part Of Her Homework Celia clash pornovideo cal
For Part Of Her Homework Celia
for part of her homework celia
Celia Walden on husband Piers Morgan: 'I asked him who he'd have . Celia Walden with her husband . spent as a schoolgirl deferring homework until .. With her gravity-defying coiff, fanta... | |
Since all the inversions of a seventh chord include 6, this is abbreviated to "4/2." Chords In The Keys Of A, B, C, D, E, F, G Flat, Sharp, Major & Minor. You can add sevenths to these chords, either major seventh or dominant seventh, depending on the chord. Category 1: embellishing tones that move by step. You want th... | |
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Broad Topics > Using, Applying and Reasoning about Mathematics > Working systematically
Stage: 3 Challenge Level:
How many different symmetrical shapes can yo... | |
A store has 5 years remaining on its lease in a mall. Rent is $2,000 per month, 60 payments remain, 3 answers Question: A store has 5 years remaining on its lease in a mall. Rent is$2,000 per month, 60 payments remain, and the next payment is due in 1 month. The mall's owner plans to sell the property in a year and wan... | |
# matching hats problem, expected value of number of matching hats
I've been reading a book where the following problem is stated
"Suppose that $n$ people throw their hats in a box and then each picks up one hat at random. What is the expected value of X, the number of people that get back their own hat? "
It then c... | |
# Triangulation on Euclidean Space
I have a couple of questions about triangulations of the Euclidean space:
• Is it possible to have an infinite triangulation of the Euclidean space $\mathbb{R}^2$ such that only a finite number of vertices have degree less or equal than 6?
• If not, is it possible to have a triangu... | |
fan96's latest activity
• fan96 replied to the thread Hard Proofs Question.
I think there's a possibility that there's some algebraic trick you can do (independent of the previous parts) to find C once you know...
• fan96 replied to the thread Inequalities question help.
Hint: Make the substitutions a = e^\alpha, b = ... | |
# Mensuration Class 8
Mensuration class 8 – By constructing EC || AB, we can split the given figure (AEDCBA) into two parts(Triangle ECD right angled at C and Rectangle AECB), Here, b = a + c = 30 m
Now, Area of Triangle DCE:
$\frac{1}{2}\times CD\times EC=\frac{1}{2}\times c\times h=\frac{1}{2}\times 10\times 12=60... | |
# Failing to Bound Kissing Numbers
https://en.wikipedia.org/wiki/Kissing_number
Cody brought up the other day the kissing number problem.Kissing numbers are the number of equal sized spheres you can pack around another one in d dimensions. It’s fairly self evident that the number is 2 for 1-d and 6 for 2d but 3d isn’... | |
RoseCode
Problem #383
Squarefree Factorisations
Public ★(x7) 1м:3w by Philippe_57721 8xp Programming 70.0%
Let's n an integer with the following factorisation : $n = a_1^{e_1} \times a_2^{e_2} \times \dots \times a_p^{e_p}$ where $a_i$ are squarefree and $\forall i \in \{1,\dots, p-1 \}\quad a_i \textrm{ divides }a... | |
# Can The Cat Get His Dinner?
A mouse starts running on a circular path of Radius = 28m with constant speed u = 4m/s. A cat starts from the center of the path to catch the mouse. The cat always remains on the radius connecting the center of the circle and the mouse and it maintains magnitude of its velocity a constant... | |
Question
World War II aircraft had instruments with glowing radium- painted dials (see Figure 31.2). The activity of one such instrument was $1.0\times 10^{5}\textrm{ Bq}$ when new. (a) What mass of $^{226}\textrm{Ra}$ was present? (b) After some years, the phosphors on the dials deteriorated chemically, but the radium... | |
# American Institute of Mathematical Sciences
ISSN:
1534-0392
eISSN:
1553-5258
All Issues
## Communications on Pure and Applied Analysis
June 2004 , Volume 3 , Issue 2
Select all articles
Export/Reference:
2004, 3(2): 161-173 doi: 10.3934/cpaa.2004.3.161 +[Abstract](3003) +[PDF](208.0KB)
Abstract:
The zero solu... | |
# How to prove a set belongs to Borel sigma-algebra?
I am working on this problem on measure theory like this:
Suppose ##X## is the set of real numbers, ##\mathcal B## is the Borel ##\sigma##-algebra, and ##m## and ##n## are two measures on ##(X, \mathcal B)## such that ##m((a, b))=n((a, b))< \infty## whenever ##−\in... | |
Hellenica World
# .
In mathematics, in the field of differential geometry, an Iwasawa manifold is a compact quotient of a 3-dimensional complex Heisenberg group by a cocompact, discrete subgroup. An Iwasawa manifold is a nilmanifold, of real dimension 6.
Iwasawa manifolds give examples where the first two terms E1 a... | |
# How to Solve Trigonometric Equations
Author Info | 10 References
Updated: May 6, 2019
Did you get homework from your teacher that was about solving Trigonometric equations? Did you maybe not pay full attention in class during the lesson on Trigonometric questions? Do you even know what "Trigonometric" means? If yo... | |
# zbMATH — the first resource for mathematics
##### Examples
Geometry Search for the term Geometry in any field. Queries are case-independent. Funct* Wildcard queries are specified by * (e.g. functions, functorial, etc.). Otherwise the search is exact. "Topological group" Phrases (multi-words) should be set in "strai... | |
# Functorial kernel in derived category
By the work of Verdier, we know that cones in a triangulated category $$\mathcal{T}$$ are functorial if and only if $$\mathcal{T}$$ is semisimple abelian. However, in these notes, it is said that
In the context of triangulated categories, it is well known that cones are not fun... | |
Groupe de Travail
Organisateur : Patrick LE MEUR, Dominique MANCHON et Jean-Marie LESCURE
Les exposés ont lieu le vendredi à 14h00 en salle 2222 du bâtiment de mathématiques (consulter le plan d'accès au laboratoire).
2003 / 2004 2004 / 2005 2005 / 2006 2006 / 2007 2007 / 2008 2008 / 2009 2009 / 2010 2010 / 2011 20... | |
# Suppose a teacher recorded the attendance of her students in a recent statistics class because she...
###### Question:
Suppose a teacher recorded the attendance of her students in a recent statistics class because she wanted to investigate the linear relationship between the number of classes they missed and their ... | |
## Introduction
Neuropathic pain is a debilitating condition arising from injury to the somatosensory neurons which triggers the development of allodynia and hyperalgesia1. Several conditions such as traumatic accidents, surgery and diseases affecting peripheral and central nervous systems contribute to etiopathogenes... | |
Building a Brain - Distributing Machine Learning Models in NoSQL
Author :: Kevin Vecmanis
In this post I walk through an architecture model for building better operational intelligence into VanAurum by distributing and accessing many machine learning models in MongoDB, a popular open source NoSQL database framework.
... | |
# zbMATH — the first resource for mathematics
A zonotope associated with graphical degree sequences. (English) Zbl 0737.05057
Applied geometry and discrete mathematics, Festschr. 65th Birthday Victor Klee, DIMACS, Ser. Discret. Math. Theor. Comput. Sci. 4, 555-570 (1991).
[For the entire collection see Zbl 0726.00015.... | |
# Wydawnictwa / Czasopisma IMPAN / Dissertationes Mathematicae
## Czasopisma IMPAN
Artykuły w formacie PDF dostępne są dla subskrybentów, którzy zapłacili za dostęp online, po podpisaniu licencji Licencja użytkownika instytucjonalnego. Czasopisma do 2009 są ogólnodostępne (bezpłatnie).
## On the numerical index with... | |
# Coronas of Spaces and the Borsuk Shape Category
I was thinking about some topological ideas, especially those relating to shape theory, and came across some interesting constructions that seem to relate to shape theory, but that I can't quite situate within my own knowledge - so was wondering if there is any related... | |
1. Jun 27, 2004
### 1+1=1
i have two ?'s to ask yall. ok, i need to prove every even perfect number is a triangular number. the formula is t(n)= 1+2+... tn = (n(n+1))/2.
ok i know that to be a perfect number, it is sigma (a) which menas 2times a. for ex, sigma(6)=1+2+3+6=12. this is as far as i can get can anyone sh... | |
# Which test to use: Chi-squared, Fisher's exact or some other?
I asked 200 survey participants the same sequence of eight multiple-choice questions with four answer options (A, B, C and D). Here are the results:
• All A's: 58
• All B's: 1
• All C's: 2
• All D's: 0
• Mixtures of A's, B's, C's and D's: 139
I want to ... | |
# Beta Function (G Dataflow)
Evaluates the beta function and regularized incomplete beta function.
Evaluates the beta function.
Evaluates the regularized incomplete beta function. | |
# Angular Momentum vs Linear Momentum
1. Dec 4, 2014
### Maged Saeed
1. The problem statement, all variables and given/known data
The following figure shows an overhead view of a thin rod of mass M=2.0 kg and length L = 2.0 m which can rotate horizontally about a vertical axis through the end A. A particle of mass m... | |
# A relation about invertible and nonsingular matrices
In the lectures I am following, we are trying to show that
$AB = I \implies B=A^{-1}$, given that A and B are $n \times n$ square matrices. Of course we don't know if A and B are invertible or nonsingular etc. First we need to show these. It follows in the lectur... | |
# iarray.arctan2#
iarray.arctan2(iarr1: IArray, iarr2: IArray)#
Element-wise arc tangent of $$\frac{iarr_1}{iarr_2}$$ choosing the quadrant correctly.
Parameters
Returns
angle – A lazy expression that must be evaluated via out.eval(), which will compute the angles in radians, in the range $$[-\pi, \pi]$$.
Return t... | |
Testing gravity with the positions of supermassive black holes
# Overview
Testing General Relativity on large scales is largely tantamount to searching for new fundamental interactions (‘‘fifth forces’’) between masses, mediated by dynamical fields beyond the metric tensor. An important competitor to General Relativi... | |
# Simple quick graph question, not a problem
1. Oct 4, 2009
### neutron star
What does this mean on a graph?
http://img16.imageshack.us/img16/7046/picture19pc.png [Broken]
I was given a y=f(x) graph and it has a multiple choice of like f(3) is greater than f(4) etc. But then it says f$$^r$$(4) is greater than f$$^... | |
Can averaged limits of sequences be realized as limits of sequences? - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-25T03:49:32Z http://mathoverflow.net/feeds/question/68034 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/68034/can-averaged-limits-of-sequences... | |
# Introducing a new operation
Algebra Level 1
Define the star operation as $$a\star b=a+ab+b.$$
Then define the star power operation as $$a^{\star n}=\underbrace{a\star a\star a\star\cdots\star a}_{a\, \mathrm{written} \, n \, \mathrm{times}},$$ with $$a^{\star 1}=a.$$
What is $$7^{\star7}?$$
× | |
# Test your Integration Skills 102!
Calculus Level 3
$\large \int (2 + \sin^2 x) \cot x \, dx = \, ?$
Clarification: $$C$$ denotes the arbitrary constant of integration.
× | |
Determinant and trace of matrix ( HELP)
FInd the determinant of the following matrix?
4,-4,-8
-2, 2, 6
0, 0,-1
Heres my attempt
4.(2x(-1)- 6x0) -(-4).((-2)x(-1) - 6x0) +(-8).((-2)x0-2x0)
which goves:
4.(-2)+4(2) -8 = 0
is this correct??
Im also asked to find the trace? What is this and how do i find it?
Thanks
... | |
# Property of radius of convergence
## Main Question or Discussion Point
I have a question regarding the radius of convergence and hopely someone can help me with it.
Suppose $$\Sigma$$NANZN-1 is given and if its primitive exists, will these two polynomials have the same radius of convergence?
LCKurtz | |
# Revision history [back]
I can't belived this is working:
Mat templateImage = ("template.jpg");
It won't on my computer.
Mat templateImage = imread("template.jpg");
I assume copy/paste issue?
Don't use cvCreateMat with the CPP interface:
Mat graySourceImage(sourceImage.rows,sourceImage.cols,CV_32FC1);
This ... | |
# Does it make sense to have a world with a very quickly orbiting moon?
I am writing a story in which a planet has a moon that orbits it about once a minute. In the story, the moon is pretty bright too, so the night sky has a little bit of a slow strobe light effect: 30 seconds really bright, 30 seconds dark, etc. The... | |
It is currently 24 Feb 2018, 17:43
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
we will pick new questions that match your level based o... | |
Implementation of the Real-time Measurement System of Receiver Sensitivity for a Laser Range Finder
Title & Authors
Implementation of the Real-time Measurement System of Receiver Sensitivity for a Laser Range Finder
Lee, Young-Ju;
Abstract
We propose the method for measuring sensitivity of optical receiver of a long-... | |
definition of $l$-equivalence
In the following paper http://www.math.ucsd.edu/~ronspubs/74_01_van_der_waerden.pdf, just in the first paragraph the author defines what $l$-equivalence for two m-tuples $\in [0,l]^m$ means. Can somebody please give me a more precise definition of what he means? I am not even sure what $[... | |
# Linear model for repeated-measures regression
I have two independent variables $$y_{mi},z_{mi}$$ ($$z$$ is measured in fasting, so it is the basal state), measured with two different methods $$m$$ (m=2 is the reference method) in the same subjects $$i$$, with two predictors (age and sex). One regression model is nee... | |
# Possible way to plot the solution density of diophantine equations
Well, I'm trying to investigate the density of solutions to Diophantine equations. What is a general method to describe that density?
I've two functions:
$$\varphi\left(\text{a},\text{b},\text{c}\right)=\theta\left(\text{a},\text{b},\text{c}\right)... | |
# No Individual Distance Was Found!
Geometry Level 5
We are given a regular pentagon $$A_1A_2A_3A_4A_5$$ in the Cartesian plane centered at the origin with $$A_1 = (1,0)$$. Let $$P = (1, \sqrt{3})$$.
Denote $$z = \displaystyle \prod_{i=1}^5 m(PA_i)$$, where $$m(AB)$$ denotes the length of segment $$AB$$.
Submit your... | |
## [solved] example request , canvas scale - camera - pixel perfect - simplified
General discussion about LÖVE, Lua, game development, puns, and unicorns.
ReFreezed
Party member
Posts: 570
Joined: Sun Oct 25, 2015 11:32 pm
Location: Sweden
Contact:
### Re: example request , canvas scale - camera - pixel perfect - sim... | |
# Sampling a Population of Unknown Size
How do you sample a population whose size is not known?
For example, I have a day's population from whom I need to select 1000 items from.
Each hour (for one day) some number of new items (can be any number, even 0) enter a box (at any time, not necessarily the start of the ho... | |
# Shortest code that raises a SIGSEGV
Write the shortest code that raises a Segmentation Fault (SIGSEGV) in any programming language.
• Wow. Possibly the shortest successful question. – Matthew Roh Feb 9 '17 at 11:42
# C, 5 characters
main;
It's a variable declaration - int type is implied (feature copied from B l... | |
# Steenrod duality
An isomorphism between the $p$-dimensional homology group of a compact subset $A$ of the sphere $S^n$ and the $(n-p-1)$-dimensional cohomology group of the complement (the homology and cohomology groups are the reduced ones). The problem was examined by N. Steenrod [1]. When $A$ is an open or closed... | |
Centrioles are highly structured organelles whose size is remarkably consistent within any given cell type. New centrioles are born when Polo-like kinase 4 (Plk4) recruits Ana2/STIL and Sas-6 to the side of an existing “mother” centriole. These two proteins then assemble into a cartwheel, which grows outwards to form t... | |
# Why can't we use the Master Theorem on recurrences with floor or ceiling operations? [duplicate]
From my understanding, using such operators on large numbers doesn't have an impact on running time, since the integer rounding becomes negligible after a certain point. For example, the recurrence $$T(n)= \begin{cases} ... | |
182 articles – 1721 Notices [english version]
HAL : in2p3-00131859, version 1
arXiv : nucl-ex/0104015
Physical Review Letters 87 (2001) 052301
Measurement of the mid-rapidity transverse energy distribution from $\sqrt{s_{NN}}=130$ GeV Au+Au collisions at RHIC
PHENIX Collaboration(s)
(2001)
The first measurement... | |
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# Sensitivity analysis wikipedia
### Stand-alone vs coupled simulationedit
A modern house which is located in Upper Austria is considered for the sensitivity analysis of construction materials. The building to be simulated is a modern two-story house with a cellar. The volume of the building is approximately 76... | |
Math Help - If A is an invertible matrix, then A+A^T is skew-symmetric. (Proof).
1. If A is an invertible matrix, then A+A^T is skew-symmetric. (Proof).
My teacher wrote:
(A+A^T)^T = A^T + (A^T)^T = A^T + A
While I get this algebraically, I don't see how it proves skew-symmetry. Like how does this relate to A = -A^... | |
## deconz logs
6 month apartment rental paris
1d Gaussian Python. ... And I'll call this layer smooth. Smoothing splines. This is an in-depth tutorial designed to introduce you to a simple, yet powerful classification algorithm called K-Nearest-Neighbors (KNN). ... SciPy is a collection of Python libraries for scient... | |
### Theory:
Consider two numbers, $$15$$ and $$20$$.
The LCM of $$15$$ and $$20$$ is $$60$$. That is, $$LCM(15,20) = 60$$.
The GCD of $$15$$ and $$20$$ is $$5$$. That is, $$GCD(15,20) = 5$$.
Now, $$LCM(15,20) \times GCD(15,20) = 60 \times 5 = 300$$
$$\Rightarrow LCM(15,20) \times GCD(15,20) = 15 \times 20$$
This ... | |
# Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks
@article{Freire2017LongtermOO,
title={Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks},
author={Paulo C. C. Freire and Alessandro Ridolfi and Michael Kramer and Christin... | |
Math Help - System of Quadratic Inequalities.
Sketch the intersection of the given inequalities. 1 y≥x^2 and 2 y≤-x^2+2x+4
I can do this. You get a region of overlap, which is where the solution lies. My question is, this is a bounded region, but would we still say there are infinitely many solutions since, for insta... | |
Location of Repository
## A Remark on the Assumptions of Bayes' Theorem
### Abstract
We formulate simple equivalent conditions for the validity of Bayes' formula for conditional densities. We show that for any random variables X and Y (with values in arbitrary measurable spaces), the following are equivalent: 1. X a... | |
# Pitfalls of open maps
Suppose you have an open map $$p$$ between topological spaces, and if you have a subet $$A$$ of $$p$$’s domain such that $$p(A)$$ is open. Can you then conclude that $$A$$ is open? Nope! Consider the following spaces $$X=\{x_1,x_2\}$$ and $$Y=\{y_1,y_2\}$$ with topologies $$\tau_X=\{\varnothing... | |
# Thread: [SOLVED] Confusing first order condition
1. ## [SOLVED] Confusing first order condition
The lagrangian is
$L=\sum^{\infty}_{t=0} \beta^tu(c_t)+\sum^{\infty}_{t=0} \lambda_t[f(k_t) +(1-\delta)k_t-c_t-k_{t+1}]$
And apparently one of the FOCs is
$\frac{\partial L}{\partial k_{t+1}} = -\lambda_t + [f_1(k_{t+... | |
# Long compile times on Windows 10 status
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## Long compile times on Windows 10 status
Hi folks, Although a dyed in the wool Linux user, I am experimenting with Windows 10. At 2.19.48 I am seeing the long compile times that have been mentioned, for every run. With 2.19.39 ... | |
# Data Management – SRA Submission Oly GBS Batch Submission Fail
He noticed that the SRA no longer wants “raw data dumps” (i.e. the type of submission I made before). So, that means I had to prepare the demultiplexed files provided by BGI to actually submit to the SRA.
Last week, I uploaded all 192 of the files via F... | |
# zbMATH — the first resource for mathematics
Neighbor sum distinguishing total choosability of 1-planar graphs with maximum degree at least 24. (English) Zbl 1455.05018
Summary: For a simple graph $$G$$, a neighbor sum distinguishing total $$k$$-coloring of $$G$$ is a mapping $$\phi$$: $$V (G) \cup E (G) \to \{1, 2, ... | |
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This article presents the different data types in R. To learn about the different variable types from a statistical point of view, read “Variable types and examples”.
# What data types exist in R?
There are five data types... | |
Algebra -> Coordinate Systems and Linear Equations -> SOLUTION: In an isosceles triangle, two of the angles are equal in measure.If the third angle is 21° less than three times the other angles, find the measure of all three angles. That's the whole goal here. So that is going to be the same as that right over there. A... |
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