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# Solve ${x^{2\;}} + {\text{ }}6x{\text{ }}-{\text{ }}7{\text{ }} = {\text{ }}0\;$ by the method of completing the square.
Last updated date: 25th Mar 2023
Total views: 309.3k
Views today: 8.87k
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309.3k+ views
Hint:- Try to make complete squa... | {} |
# cosmosis / FAQ
#Why does the auto-installer download so many things?
The auto-installation script downloads a complete stack down to the compiler. We know this is a bit annoying and weird, and you can absolutely try and manage the dependency installation yourself, but we've found that with such a wide variety of co... | {} |
# Probabilistic representations for the solutions of higher order differential equations
Mazzucchi, Sonia (2011) Probabilistic representations for the solutions of higher order differential equations. Trento : Università degli Sudi di Trento. Dipartimento di Matematica. (Unpublished)
Preview
PDF - Full Text
## Abst... | {} |
There is another type of angle that we hear much less about called a reflex angle. The other part of the formula, − is a way to determine how many triangles the polygon can be divided into. Consider following triangles DOA and COB where their internal angles at O are 60° and 45° respectively. A simple concave polygon h... | {} |
openmmtools.scripts contains scripts that may be useful in testing your OpenMM installation is functioning correctly:
# Command-line scripts¶
./test-openmm-platforms will test the various platforms available to OpenMM to ensure that all systems in openmmtools.testsystems give consistent potential energies. If differe... | {} |
Elastic Collisions Video Lessons
Example
# Problem: Balls A and B roll across a table, then collide and bounce off each other. The paths of the two balls are pictured (viewed from above) in the diagram. (Figure 1) a) Which set of arrows best represents the change in momentum for balls A and B?b) Which of the followin... | {} |
Release: 1.2.12 current release | Release Date: September 19, 2018
# Mixin and Custom Base Classes¶
A common need when using declarative is to share some functionality, such as a set of common columns, some common table options, or other mapped properties, across many classes. The standard Python idioms for this is t... | {} |
HI! I need help to find some answers!
What is the probability that if you roll a single standard die four times you will roll four different numbers?
5/18, 240/1296, 1/3 or none of these?
2. Originally Posted by K.S. Turner
HI! I need help to find some answers!
What is the probability that if you roll a single standar... | {} |
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It is currently 02 Jun 2015, 18:43
### 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.
C... | {} |
# Wave function representation of probability distributions
Orthogonal decomposition of the square root of a probability density function in the Hermite basis is a useful low-dimensional parameterization of continuous probability distributions over the reals. This representation is formally similar to the representati... | {} |
, 24.01.2020rodriguezzamyy
Acompound is composed of 72% iron and 27.6% oxygen. what is the empirical formula?
in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for ... | {} |
If None is passed, then the plot will be drawn to a new set of axes. Now that we have WCB trajectories, let’s plot them on a map. It comes with a handful basemap plotting toolkit which easily allows to add country boundaries. Data analysis for trp-cage folding MD trajectory¶. Matplotlib is a popular Python library for ... | {} |
Canadian Mathematical Society www.cms.math.ca
location: Publications → journals → CJM
Abstract view
# Level Lowering Modulo Prime Powers and Twisted Fermat Equations
Published:2011-09-15
Printed: Apr 2012
• Sander R. Dahmen,
Department of Mathematics, The University of British Columbia, Vancouver, BC, V6T 1Z2
• Sor... | {} |
# Momentum Driving: which physical processes dominate AGN feedback - Astrophysics > Astrophysics of Galaxies
Momentum Driving: which physical processes dominate AGN feedback - Astrophysics > Astrophysics of Galaxies - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para l... | {} |
How do you solve for x in ax-c=b?
Apr 26, 2017
See the solution process below:
Explanation:
First, add $\textcolor{red}{c}$ to each side of the equation to isolate the $x$ term while keeping the equation balanced:
$a x - c + \textcolor{red}{c} = b + \textcolor{red}{c}$
$a x - 0 = b + c$
$a x = b + c$
Now, divid... | {} |
## Plotting a small gaussian | Small values and dealing with Machine Precision
I’ve defined the following:
k := 1.38*10^-16 kev := 6.242*10^8 q := 4.8*10^-10 g := 1.66*10^-24 h := 6.63*10^-27
and
b = ((2^(3/2)) (\[Pi]^2)*1*6*(q^2)*(((1*g*12*g)/(1*g + 12*g))^( 1/2)) )/h T6 := 20 T := T6*10^6 e0 := ((b k T6 *10^6... | {} |
WeBWorK Problems
Putting summations with answerblanks in limits of summation on one line
by Cindy Loten -
Number of replies: 0
I'm creating questions where students need to work with equations containing infinite sums (generating functions in particular), where I want make sure students can do some basic manipulatio... | {} |
# Is it a good idea to teach algorithm courses using pseudocode instead of a real programming language?
I am a young professor teaching a data structures course for the first time. I'm teaching at an engineering college that provides an academic degree, but the focus is preparing future computer programmers, not acade... | {} |
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Questions & Answers
# In an A.P. the sum of first ten terms is$210$ and the difference between the first and last term is$36$.Find the first term in the A.P.$A.{\text{ }}2 \\ B.{\text{ }}3 \\ C.{\text{ }}4 \\ D.{\text{ }}5 \\$
Last updated date: 31st... | {} |
# Gas Problem Assignment
1. Oct 25, 2009
### vortex193
1. The problem statement, all variables and given/known data
Container A holds an ideal gas at a pressure of 5x10^5 Pa and a temperature of 300 K. It is connected by a thin tube (and closed valve) to container B, with four times the volume of A. Container B hold... | {} |
# the negation of $\preceq$
How do I type a modification of this $\npreccurlyeq$ symbol with not negated the above symbol, just negated the bottom one ?
Please note that I need the bottom part of the 2 symbols aligned with he curved upper part: it should not be straight.
Also I need both version of it: the curved si... | {} |
Hitting time
In the study of stochastic processes in mathematics, a hitting time (or first hit time) is the first time at which a given process "hits" a given subset of the state space. Exit times and return times are also examples of hitting times.
Definitions
Let T be an ordered index set such as the natural numbe... | {} |
EPO gene expression induces the proliferation, migration and invasion of bladder cancer cells through the p21WAF1‑mediated ERK1/2/NF-κB/MMP-9 pathway.
@article{Park2014EPOGE,
title={EPO gene expression induces the proliferation, migration and invasion of bladder cancer cells through the p21WAF1‑mediated ERK1/2/NF-$\ka... | {} |
# Copying bib file manually in document
I am writing a IEEE paper. I have a separate .tex file and .bib file. The instructions mention that
"When submitting the document source (.tex) file to external parties, it is strongly recommended that the BIBTEX .bbl file be manually copied into the document (within the tradit... | {} |
# Lecture 7 – The giant component
I am aiming to write a short post about each lecture in my ongoing course on Random Graphs. Details and logistics for the course can be found here.
As we edge into the second half of the course, we are now in a position to return to the question of the phase transition between the su... | {} |
## zmudz one year ago Find the maximum $$p$$ such that $$2x^4y^2 + 9y^4z^2 + 12z^4x^2 - px^2y^2z^2$$ is always nonnegative for all $$x$$, $$y$$, and $$z$$ real.
1. amistre64
hmm, since all of our exponents are even, the results will always be postive for the first 3 terms ...
2. amistre64
i wonder if a gradient wou... | {} |
# Mathematics Questions and Answers – Statistics – Median of Grouped Data
«
»
This set of Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Statistics – Median of Grouped Data”.
1. What is the median?
a) Difference between higher half and lower half of the data set
b) Mean of the highest and lowest ... | {} |
## Cryptology ePrint Archive: Report 2021/648
Security of COFB against Chosen Ciphertext Attacks
Mustafa Khairallah
Abstract: COFB is a lightweight authenticated encryption (AE) mode based on block ciphers, proposed in CHES 2017 and is the basis for GIFT-COFB, a finalist in the NIST lightweight standardization proje... | {} |
## alextorres one year ago I really dont get how this work.
• This Question is Open
1. pooja195
$$~~~~~~~~~~~~~~~~~~~~~~~~~~\Huge{\color{red}{\heartsuit}\color{orange}{\bigstar}\color{yellow}{\heartsuit}\color{green}{\bigstar}\color{blue}{\heartsuit}\color{purple}{\bigstar}\color{hotpink}{\heartsuit}}$$$$\Huge\bf\col... | {} |
# Equivalent characterizations of group objects
Let $\mathcal C$ be a category. In our lecture, a group object in $\mathcal C$ is defined as
• an object $c ∈ \mathcal C$,
• interpreted by a contravariant functor $L \colon \mathcal C^\mathrm{op} → \mathrm{Grp}$,
• such that$?L = \mathrm{mor}_\mathcal C (–,c)$,
where ... | {} |
# Simulating Electricity Prices with Mean-Reversion and Jump-Diffusion
This example shows how to simulate electricity prices using a mean-reverting model with seasonality and a jump component. The model is calibrated under the real-world probability using historical electricity prices. The market price of risk is obta... | {} |
# Multiplying with Polynomials.
In $(3xy)^2$, do I distribute that power of two to each of the terms?
$(3^2)\times(x^2)\times(y^2) = 9x^2y^2$?
Or do I just treat it as $3xy^2$?
• The first option. – Edward Jiang Dec 19 '14 at 2:28
• $3^2 \cdot x^2 \cdot y^2 \; = \; 9x^2y^2$ – mathamphetamines Dec 19 '14 at 2:29
• y... | {} |
# Is acceleration correlated with an instantaneous velocity?
1. Oct 28, 2011
### gomer36
Is acceleration correlated with an instantaneous velocity? tia
2. Oct 28, 2011
### gsal
yes, acceleration is the rate of change of velocity respect to time.
3. Oct 28, 2011
### gomer36
thank you
4. Oct 28, 2011
### ZealS... | {} |
# zbMATH — the first resource for mathematics
## Naor, Assaf
Compute Distance To:
Author ID: naor.assaf Published as: Naor, Assaf Homepage: http://web.math.princeton.edu/~naor/ External Links: MGP · Wikidata · dblp · GND Awards: EMS Prize (2008)
Documents Indexed: 138 Publications since 2001
all top 5
#### Co-Auth... | {} |
### Insecurity of the Public Key Encryption with Filtered Equality Test Proposed by Huang et al.
Hyung Tae Lee, San Ling, Jae Hong Seo, and Huaxiong Wang
##### Abstract
Recently, Huang et al. proposed a concept of public key encryption with filtered equality test (PKE-FET) that allows a tester who has a warrant for ... | {} |
# Viewpoint: The Life and Death of Cells
Physics 6, 129
A model based on statistical mechanics is applied to describe a key factor determining the senescence of biological cells.
We may think of built-in obsolescence as a modern marketing trick, but biology got there first. Rather than being able to replicate indefin... | {} |
# Import and export a list of SparseArrays efficiently?
I have a list of integers dims and a list of SparseArrays bdrs (representing a chain complex $$\mathbb{Z}^{d_0}\overset{\partial_1}{\leftarrow}\mathbb{Z}^{d_1}\overset{\partial_2}{\leftarrow}\mathbb{Z}^{d_2}\leftarrow\ldots$$).
I wish to import/export such data ... | {} |
# Toolbar Database >> TelevisionFanatic Toolbar
## What is TelevisionFanatic Toolbar ?
TelevisionFanatic toolbar is an internet explorer toolbar developed by MindSpark
TelevisionFanatic toolbar is registered in the registry with the GUID {c98d5b61-b0ea-4d48-9839-1079d352d880}
The following dll location can be run wit... | {} |
# General block diagonal matrix [duplicate]
I am constructing a matrix using the following code
a[μ_] := {{2 μ + 1, 0, 0, 2 Sqrt[μ (μ + 1)]}, {0,
2 μ + 1, 2 Sqrt[μ (μ + 1)], 0}, {0,
2 Sqrt[μ (μ + 1)], 2 μ + 1,
0}, {2 Sqrt[μ (μ + 1)], 0, 0, 2 μ + 1}};
b[μ_] := {{2 μ + 1, 0, 0, -2 Sqrt[μ (μ + 1)]}, {0,
2 μ + 1, -2 Sqrt... | {} |
# Where can I find lists of theorems that have been verified?
I recall many years ago seeing a very large and well-interlinked (by computer) list of verified results starting from base assumptions and leading to all sorts of things that naive me did not expect computers to be able to handle e.g. measure theory. I don'... | {} |
# Algorithms¶
The primary use-case of this library is to detect differences between two sequences of tokens. So far, two such algorithmic strategies are available:
sequence_matcher
implementes diff() that will compare two sequences of Token and return a set of operations.
segment_matcher
implementes diff() that uses ... | {} |
# RT stream log archival configuration
RT stream log archival rules can be set using global config values. This allows the user to configure the retention duration, max log size and max disk usage percentage for RT stream log files according to their required policies.
global:
rtConfig:
retentionDuration: 10080
maxLo... | {} |
• 水文与水资源 •
### 长江上游输沙尺度效应研究
1. 中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室,北京 100101
• 收稿日期:2008-01-18 修回日期:2008-05-06 出版日期:2008-07-25 发布日期:2008-07-25
• 作者简介:师长兴(1963-),男,河北正定人,研究员,博士生导师。主要从事河流地貌、流域物质迁移与环境变化研究。E-mail:shicx@igsnrr.ac.cn
• 基金资助:
国家重点基础研究规划(973)项目(2003CB415202);水利部公益性行业专项经费项目(2007SHZ0901034);国家自然科学基金项目(批准号:40671019... | {} |
# All Questions
211 views
### Cryptography system by combining a block cipher and a stream cipher
I have to come up with a design for a cryptography system by combining a block cipher and a stream cipher. I can't seem to come up with anything on my own. Can someone point me in the right direction ...
22 views
### D... | {} |
tl;dr
• Finding default browser and the top visited website.
• Extract timestamp, ID, Hostname of the TeamViewer FileTransfer session.
Challenge Points: 913
Challenge Solves: 15
Challenge Author: g4rud4
Challenge Description
MD5 Hashes:
• A916E26016180D2C5189061D652DC9E1 Heist.7z
• 31f23c78ff99142bad2a778db6a64163... | {} |
## Algebraic convergence of Markov chains.(English)Zbl 1030.60070
The authors investigate criteria for the polynomial, i.e., algebraic, convergence of time-homogeneous reversible Markov chains on countable state spaces with respect to $$L^2$$-norms. The results are in particular applied to birth-death random walks in ... | {} |
1. ## Derivatives
Given that $\displaystyle y=2x^3-6x^2+18x$, find $\displaystyle \frac{dy}{dx}$ Hence show that $\displaystyle \frac{dy}{dx}> 0$ for all x.
I know how to find the derivative but what does it mean by:
Hence show that $\displaystyle \frac{dy}{dx}> 0$ for all x, above? By finding the derivative how do ... | {} |
# Diesel Cycle: 17 Important Factors Related To It
## Diesel Cycle
The Diesel engine came into existence by Rudolph Diesel in 1892, and it was somewhat modification of the SI engine by eliminating the spark plug and introducing a fuel injector. The idea was to overcome the problem regarding air-fuel mixture compressi... | {} |
# Avoid having to integrate by parts twice
Suppose f(x) and g(x) are functions that are each proportional to their second derivative. These include exponential, circular, and hyperbolic functions. Then the integral of f(x) g(x) can be computed in closed form with a moderate amount of work.
The first time you see how ... | {} |
# What will be the sum of n terms of the series whose $n^{th}$ term is $5.3^{n+1}+2n$?
## Question:
What will be the sum of n terms of the series whose $n^{th}$ term is $5.3^{n+1}+2n$?
Here $a_n=5.3^{n+1}+2n$
We have have to find $s_n$.
$\therefore s_n=\displaystyle\sum_{k=1}^{n}a_k$
$\therefore s_n=\displaystyle\su... | {} |
English
# Item
ITEM ACTIONSEXPORT
Released
Journal Article
#### Three-dimensional Hydrodynamics Simulations of Precollapse Shell Burning in the Si- and O-rich Layers
##### MPS-Authors
/persons/resource/persons245880
Takahashi, Koh
Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics,... | {} |
# Question on paper of Stewart and Top about ranks of elliptic curves over Q(t)
I'm reading "On Ranks of Twists of Elliptic Curves and Power-Free Values of Binary Forms" by Stewart and Top, and struggling to understand the argument on pg 962 which shows that the rank of a particular elliptic curve $E_{D(t)}/\mathbb{Q}... | {} |
Question: Prove that $\int_{0}^{\infty}\frac{e^{-x}-e^{-ax}}{x\,secx}dx\,=\frac{1}{2}log\left(\frac{a^2+1}{2}\right)\,\,\,,\,a\geq0$ using DUIS .
0
Subject : Applied Mathematics 2
Topic : Differentiation under the integral sign(DUIS)
Difficulty : Medium
am2(82) • 326 views
ADD COMMENTlink
modified 11 months ago by... | {} |
# User:Hilikus44
Contributions I have made to Wikipedia
## One-Dimensional Examples of Sufficient Statistics
### Normal Distribution
If $X_1,...,X_n$ are independent and normally distributed with expected value θ (a parameter) and known finite variance $\sigma^{2}$, then $T(X_1^n)=\overline{X}=\frac1n\sum_{i=1}^nX_... | {} |
# A rigid link PQ of length 1.0 m is pinned at P. It rotates about P in a vertical plane with a uniform angular acceleration of 1.0 rad/s2 . At an instant when the angular velocity of the link is 1.0 rad/s, the magnitude of total acceleration (in m/s2 ) of point Q relative to point P is
This question was previously as... | {} |
## How would I find the half-reactions?
$$2MoS_{2} + 7O_{2} \rightarrow 2MoO_{3} + 4SO_{2}$$
So here I have a redox reaction, it's already balanced but just for kicks I'm trying to find the half-reactions so that I know what is happening. I'm having some trouble though as I don't know what's being oxidized and what's... | {} |
7
Q:
# Find the unit digit of 4198 + 612345 + 34866 + 2411 + 1.
A) 3 B) 2 C) 1 D) 0
Explanation:
Given that, $4198+612345+34866+2411+1$
Now Power Cycle of
4 is 4, 6
6 is 6
8 is 8, 4, 2, 6
1 is 1
$4198$- 198 is even number , So the unit digit value is 6
$612345$ - It is always 6
$34866$- 66/4 the remainder... | {} |
+0
2° Functions, Delta
+5
794
3
ax^2 +bx +c has 2 solutions, x1 and x2 x1=(-b+√Δ)/2a and x2=(−b−√Δ)2a. Is it possible that x1 + x2 = x1/x2?
Dec 13, 2015
#2
+23278
+10
ax^2 +bx +c has 2 solutions, x1 and x2 x1=(-b+√Δ)/2a and x2=(−b−√Δ)2a. Is it possible that x1 + x2 = x1/x2? YES
$$\small{ \begin{array}{lrcll} (... | {} |
People who code: we want your input. Take the Survey
# Tag Info
5
This is just an idea Given a set of pixels, the task is to decide: Which pixel is the center of an object? What is the size of the bounding boxes with the center is the pixel in part 1? Formula, consider this is a 2D image, call $(x,y)$ is the horizon... | {} |
2019 NA Regionals Practice Contest 4
#### Start
2019-10-20 09:00 AKDT
## 2019 NA Regionals Practice Contest 4
#### End
2019-10-20 14:00 AKDT
The end is near!
Contest is over.
Not yet started.
Contest is starting in -262 days 14:55:21
5:00:00
0:00:00
# Problem FFastest Speedrun
The classic video game “Prince of... | {} |
# 2.4: Pleistocene inheritance of cliffed coasts
The larger part (about 75%) of the world’s continental and island margins is lined with cliffs, consisting of rocks or cohesive clays. As we have seen in Sect. 2.3.2, cliffed coasts are commonly tectonically active convergent coasts, which produce a rocky, high-relief ... | {} |
I'm seeing an issue where my Flex-based lexer is running into an IndexOutOfBoundsException in java.nio.Buffer.checkIndex() while my file-based indices are being built. It says some random file or files can't be indexed until the IDE is restarted, e.g:
[ 57204] ERROR - napi.project.CacheUpdateRunner - Error while in... | {} |
# The Topological Correctness of PL-Approximations of Isomanifolds
1 DATASHAPE - Understanding the Shape of Data
CRISAM - Inria Sophia Antipolis - Méditerranée , Inria Saclay - Ile de France
Abstract : Isomanifolds are the generalization of isosurfaces to arbitrary dimension and codimension, i.e. manifolds defined as ... | {} |
# EffectiveBandstructure¶
class EffectiveBandstructure(configuration, primitive_configuration, route=None, points_per_segment=None, kpoints=None, energies=None, bands_above_fermi_level=None, symmetrize=None, processes_per_kpoint=None)
Analysis class for calculating the effective band structure of a bulk supercell con... | {} |
If $$y=\frac {(2^x - 1)}{\sqrt {x}}$$ then $$\lim_{x\rightarrow 0} y$$ is
Free Practice With Testbook Mock Tests
Options:
1. log 2
2. 2log 2
3. zero
4. none of these
Correct Answer: Option 3 (Solution Below)
This question was previously asked in
ISRO Refrigeration and Air Conditioning 2013
Solution:
Concept:... | {} |
Página 1 dos resultados de 199 itens digitais encontrados em 0.006 segundos
## Arbitrage pricing theory in international markets; Teoria de apreçamento arbitragem aplicada a mercados internacionais
Bernat, Liana Oliveira
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Tese... | {} |
## 20110814
(Milan 2011 April)
My dear friends, i'm so sorry for my absence.
This period of time seems so long to me ... i could hardly see the way out ...
Till i start reading articles, books, blogs related to emotional needs of children (with sensitive emotions) again ... i understand we are not alone ...
Though in... | {} |
## Content
### Simultaneous linear equations
Problems in which there are two (or more) unknowns linked via linear equations often lead to simultaneous linear equations. There is a general method for solving systems of linear equations with more than two unknowns, but this will not be discussed here. In this section w... | {} |
# If $X_1,\cdots,X_n \sim \mathcal{N}(\mu, 1)$ are IID, then compute $\mathbb{E}\left( X_1 \mid T \right)$, where $T = \sum_i X_i$
Question
If $$X_1,\cdots,X_n \sim \mathcal{N}(\mu, 1)$$ are IID, then compute $$\mathbb{E}\left( X_1 \mid T \right)$$, where $$T = \sum_i X_i$$.
Attempt: Please check if the below is cor... | {} |
Activity for leaving the trajectory with some probability.
leave(.trj, prob)
## Arguments
.trj the trajectory object. a probability or a function returning a probability.
## Value
Returns the trajectory object. | {} |
GMAT Changed on April 16th - Read about the latest changes here
It is currently 28 May 2018, 01:00
### 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... | {} |
# Loglinear Models" In vcdExtra: 'vcd' Extensions and Additions
Rscore <- as.numeric(Mental$mental) Then, the row effects model, the column effects model, and the uniform association model can be fit as follows: # column effects model (ses) coleff <- glm(Freq ~ mental + ses + Rscore:ses, family = poisson, data = Ment... | {} |
# Witness for the $EU(\phi_1,\phi_2)$ using BDDs
I wanted ask if you know an algorithm to find the witness for $EU(\phi_1,\phi_2)$ (CTL formula "Exist Until") using BDDs (Binary Decision Diagram). In pratice you should use the fixed point for calculating $EU(\phi_1,\phi_2)$, that is:
$\qquad \displaystyle EU(\phi_1,\... | {} |
## On the geometry of closed $$G_{2}$$-structures.(English)Zbl 1122.53026
Let $$e_1,\dots, e_7$$ be an oriented orthonormal basis of $$\mathbb R^7$$ and denote $$e_{i_1}\wedge e_{i_2}\wedge\cdots\wedge e_{i_p}$$ by $$e_{i_i}\cdots e_{i_p}$$. The subgroup of $$\text{GL}(7)$$ that fixes the three-form
$\omega= e_{124}+ ... | {} |
147 views
Let $\varepsilon>0$ be a constant. Say an encryption scheme is $\varepsilon$-perfectly secret if for every adversary $\mathcal{A}$ it holds that
$$\operatorname{Pr}\left[\operatorname{PrivK}_{\mathcal{A}, \Pi}^{\mathrm{eav}}=1\right] \leq \frac{1}{2}+\varepsilon$$
Consider a variant of the one-time pad where ... | {} |
# 12. Suppose we have a Huffman tree for an alphabet of n symbols (S1, S2, ..., Sn) and that the relat
12. Suppose we have a Huffman tree for an alphabet of n symbols (S1, S2, ..., Sn) and that the relative frequencies of the symbols are 1, 2, 4, ..., 2n-1, respectively. Sketch two examples for such tree, one for n = ... | {} |
# Radius of Convergence of Sum of two Series.
Hi all, I know there are similar questions on here, but none deal with the fact of trying to prove that $T \geq min\{R,S\}$.
Intuitively this doesn't make sense to me, If you have, $$\sum_{n=n_{0}}^{} (a_{n}+b_{n})x^n$$ Shouldn't this be equal to ;
$$\sum_{n=n_{0}}^{} (a_{... | {} |
# Inequalities, Logical expressions
## Boolean values
In mathematics it is common to test if an expression is true or false. For example, is the point $(1,2)$ inside the disc $x^2 + y^2 \leq 1$? We would check this by substituting $1$ for $x$ and $2$ for $y$, evaluating both sides of the inequality and then assessing... | {} |
function minimize cannot solve Lagrange Multipliers problem.
I've tried all sorts of initial conditions but this just won't converge. It is an easy Lagrange multipliers problem.
var("y z L")
F(x, y, z, L) = (x-3)^2 + (y-1)^2 + (z + 1)^2 + L*(x^2 + y^2 + z^2 - 4)
minimize(F, [4, 3, 2, 1], algorithm='ncg' )
Any ... | {} |
Lesson 5
Using Negative Numbers to Make Sense of Contexts
Lesson Narrative
In this lesson, students are introduced to conventions for using signed numbers to represent money spent and received, as well as inventory gained and lost. While money contexts can be represented without signed numbers, there are many situat... | {} |
Article | Open | Published:
# Plasmon excitations with a semi-integer angular momentum
## Abstract
We provide an explicit model for a spin-1/2 quasi-particle, based on the superposition of plasmon excitations in a quantum plasmas with intrinsic orbital angular momentum. Such quasi-particle solutions can show remarka... | {} |
• Corpus ID: 221376821
# Teleparallel gravity as a gauge theory: coupling to matter with Cartan connection
@inproceedings{Huguet2020TeleparallelGA,
title={Teleparallel gravity as a gauge theory: coupling to matter with Cartan connection},
author={E. Huguet and Morgan Le Delliou and Michele Fontanini and Z.-C. Lin},
y... | {} |
# Advancement of Platter Tectonics and precisely how Professionals Recognize the
Advancement of Platter Tectonics and precisely how Professionals Recognize the
Dish Motions over the Earth’s Lithosphere Continuing growth of Plate Tectonics and ways in which Specialists Be aware of the Plate Motion regarding the Earth’... | {} |
# Definition:Inverse Laplace Transform
## Definition
### Definition 1
Let $f \left({s}\right) : S \to \R$ be a function, where $S \subset \R$.
Let $F$ be another function such that $F$ is the Laplace transform of $f$.
Then, $f$ is the inverse Laplace transform of $F$.
### Definition 2
Let $\map f s: S \to \R$ be... | {} |
# Anomalous Dimensions of Gauge Interactions
Peskin and Schroeder mention a few times that the anomalous dimension of a gauge interaction operator is zero. The justification for this is that the charge operator shouldn't get modified under anomalous dimensions. I'm trying to show explicitly for the simplest case, QED,... | {} |
# Intuition behind tangent space to a point on a manifold
Let $$M$$ be a smooth manifold and let $$p \in M$$. We have a notion of a "tangent space" of $$p$$, i.e. a vector space structure around $$p$$ to give us the idea, roughly, or "directions we can travel in" from $$p$$, which an abstract manifold need not have in... | {} |
# improper integrals show a beautiful fact [duplicate]
If $$f(x)$$ is a continuous function on $$\mathbb{R}$$ and the improper integral
$$\int_{-\infty}^{\infty} f(x) \,dx$$ converges.
show that : $$\int_{-\infty}^{\infty} f\left(x-\frac{1}{x}\right) \,dx = \int_{-\infty}^{\infty} f(x) \,dx$$ | {} |
# Non-isotrival fiber bundle over compact Riemann surface
In this paper, Kodaira constructed a fiber bundle $$\Phi:M_{m,n}\to S$$ from a compact complex surface $$M_{m,n}$$ to a compact Rieman surface $$S$$ of genus $$>0$$. In particular, (on p.212) for any point $$u\in S$$, the fibre $$C_u =\Phi^{-1}(u)$$ is a compac... | {} |
zbMATH — the first resource for mathematics
Dong, Shihai
Compute Distance To:
Author ID: dong.shihai Published as: Dong, S.; Dong, S.-H.; Dong, Shi-Hai; Dong, ShiHai; Dong, Shihai
Documents Indexed: 158 Publications since 1997, including 2 Books
all top 5
Co-Authors
17 single-authored 42 Sun, Guohua 17 Chen, Cha... | {} |
# How to draw loop arrow and right left arrow
I attempt to draw my map and I'm stuck in drawing the following \
• drawing a loop above from 1 to 1
• drawing loop down from -1 to -1
• drawing bend above arrow from 2 and ending in 3 and bend down arrow from 3 and ending in 2
• drawing bend above arrow from -2 and endin... | {} |
1. ## congruences 2
Slove the system of congruences
3x = 2 mod 4
4x = 1 mod 5
6x = 3 mod 9
is it no solution since 6 and 9 do not have an inverse since the gcd of 6 and 9 is not one thus u cant write it in the form x=a mod p
2. I have been trying to find the inverse and solve it that way but i dont know if that is ... | {} |
# Fix effective coordinates for defects in obs_subaru
XMLWordPrintable
## Details
• Type: Bug
• Status: Done
• Resolution: Done
• Fix Version/s: None
• Component/s:
• Labels:
None
• Story Points:
2
• Epic Link:
• Sprint:
Science Pipelines DM-W16-6
• Team:
Data Release Production
## Description
The defects as defin... | {} |
# The sum of the numbers is 8 and the sum of their squares is 170. How do you find the numbers?
Mar 5, 2016
$x = 11 , x = 7$
#### Explanation:
It is possible to solve for 2 numbers as two conditions are given.and their sum should be 18 not 8
If one number is taken to be x then the other one is 18-x
By the given con... | {} |
# Closed integral
1. Jul 24, 2013
### alejandrito29
in a text a read that
"$$\oint \nabla A \cdot dl = 2 \pi n$$
wich implies that the gradient of A has a pole singularity"
why there is a singularity?
I thing that this is a contidion to integral is nonzero but ¿what is the theorem used?
2. Jul 24, 2013
### lur... | {} |
# Getting Along with JavaScript
Posted on 29 October 2019
For the last couple of weeks, I’ve been obsessed with the idea of running Haskell in the browser. I know this is possible, because this is what I do at work every day, but the applications I work on professionally are complex beasts with Haskell backends and d... | {} |
Algebra
System of Linear Equations Warmup
How many solutions are there for this system of equations? \begin{aligned} x + y = 4\\ x + y = 6 \end{aligned}
Lines $a, b,$ and $c$ represent three different linear equations. What is the solution for the system of $a$ and $c?$
Two of these lines intersect at a point with ... | {} |
Article
Countries | Regions
Countries | Regions
Article Types
Article Types
Year
Volume
Issue
Pages
IMR Press / JOMH / Volume 17 / Issue 4 / DOI: 10.31083/jomh.2021.083
Open Access Mini-Review
Comparing rates and patterns of male suicide and “hidden suicide” between nations and over time
Show Less
1 Discipline of Psych... | {} |
# Should users be forced into a responsive design (without the ability to opt out)?
There is nothing worse than getting automatically redirected to a mobile version of a site, and not having (or not easily finding) a "view normal site" link. It's not just that the mobile site is a scaled down version of the normal sit... | {} |
##### Related content
###### Uncertainty principle - Wikipedia
Also, it must be stressed that the Heisenberg formulation is not taking into account the intrinsic statistical errors There is increasing experimental evidence that the total quantum uncertainty cannot be described by the Heisenberg term alone, but require... | {} |
# Hadoop, Chunks and Multi-line Records
Chunking an input file
In a previous post I described how one requires a custom RecordReader class to deal with multi-line records (such as SD files) in a Hadoop program. While it worked fine on a small input file (less than 5MB) I had not addressed the issue of “chunking” and... | {} |
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