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# OpenStax: General Chemistry
Source: OpenStax
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Get your students excited about solving General Chemistry problems by engaging them every step of the way with this interactive text by Openstax.Download EPUB
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# 17 Electrochemistry
## Chapter Outline
1... | {} |
Question 1: Express each of the following as the product of sines and cosines:
i) $\sin 12 x + \sin 4x$ ii) $\sin 5x - \sin x$ iii) $\cos 12 x + \cos 8x$
iv) $\cos 12 x - \cos 4x$ v) $\sin 2x + \cos 4x$
i) $\sin 12 x + \sin 4x = 2 \sin \Big($ $\frac{12x + 4x}{2}$ $\Big) \cos \Big($ $\frac{12x - 4x}{2}$ $\Big) ... | {} |
# Finding the symbolic inverse of a function
Is there a way of inverting this function to obtain $$r(\rho)$$?
rho[r_, b0_, q_] :=
r (1 + (Sqrt[π]Gamma[1/(q - 1)])/((1 - q) Gamma[1/2 ((q + 1)/(q - 1))]) b0 /r + (1 + q)/(2 q) (b0/r)^(1 - q))
Note that $$q<0$$ and $$b0$$ is some positive constant.
The typical way to ... | {} |
# Secure Multiplication and Match-Making
To do general secure computation, we will of course need to do more than secure addition. It turns out that the secret sharing scheme from the previous subsection already allows us to do more: we can also do secure multiplication.
Suppose two numbers $a,b \in \mathbb{Z}_p$ hav... | {} |
Mathematics of zombies
What do you do if there is a Zombie attack? Can mathematics help? This page is (humorously) dedicated to collecting links to papers or blog posted related to the mathematical models of Zombies.
George Romero’s 1968 Night of the Living Dead, now in the public domain, introduced reanimated ghouls... | {} |
V8 engine Cessna 172
Help Support Homebuilt Aircraft & Kit Plane Forum:
robertl
Well-Known Member
I'm not a mechanic, or an engineer but I have stayed at a Holiday Inn before so I feel that I'm qualified to make this statement. How about you take the auto engine that you are working with, make whatever changes you w... | {} |
# Mighty Max C-Axis and Igus
I mentioned in Accelstepper that I had been working on a 5 Axis platform for a laser cutting project. Well I’ve sent the drawings in and parts are slowly starting to come! We’ve already ordered and have many of the smaller parts…motors, drivers, (not yet controller….that’ll be another post... | {} |
# Generic Group Analyzer Unbounded "Do it unbounded"
## Introduction
Generic Group Analyzer Unbounded is a tool to automatically prove computational security statements in the Generic Group Model. It is especially designed to deal with security experiments where the attacker is allowed to interact with an Oracle an u... | {} |
# Setting text color in TikZ without changing line color; conflict with double
I have a certain TikZ style that I would like to use over and over again (so I'd like to use it as a scope). Namely, I want the color of the curves to be red, with white borders (to give a "crossing over" effect when the curves go over each... | {} |
# An Efficient Soft-Margin Kernel SVM Implementation In Python
Published:
This short tutorial aims at introducing support vector machine (SVM) methods from its mathematical formulation along with an efficient implementation in a few lines of Python! Do play with the full code hosted on my github page. I strongly reco... | {} |
# M2: Milestones second funding period
• Analysis of the various data sets of BESIII above 4.1 GeV/c2 center of mass energy by one simultaneous fit to the data. This will be performed for the two reaction channels Y → J/ψπ+π- and Y → DD̅*. In order to achieve this goal, the Common Partial Wave Analysis Framework ComP... | {} |
It has been a puzzling question why several organisms reproduce sexually. Fisher and Muller hypothesized that reproducing by sex can speed up the evolution. They explained that in the sexual reproduction, recombination can combine beneficial alleles that lie on different chromosomes, which speeds up the time that those... | {} |
# Logarithms Tutorial
The logarithm is perhaps the single, most useful arithmetic concept in all the sciences; and an understanding of them is essential to an understanding of many scientific ideas. Logarithms may be defined and introduced in several different ways. But for our purposes, let's adopt a simple approach.... | {} |
WIKISKY.ORG
Home Getting Started To Survive in the Universe News@Sky Astro Photo The Collection Forum Blog New! FAQ Press Login
# NGC 6886
Contents
### Images
DSS Images Other Images
### Related articles
An Atlas of [N II] and [O III] Images and Spectra of Planetary NebulaeWe present an atlas of Hubble Space ... | {} |
## Refereed articles in journals
NOTE: The versions of the papers that can be downloaded from this page are often the official journal versions with restricted access. Often, preliminary versions in the form of preprints are available. In any case, we advise you to prefer the published articles as they contain the mos... | {} |
# A Submillimeter View of Circumstellar Dust Disks in $ρ$ Ophiuchus - Astrophysics
A Submillimeter View of Circumstellar Dust Disks in $ρ$ Ophiuchus - Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.
Abstract: We present new multiwavelengt... | {} |
# Displacement Operator definition
1. Aug 13, 2012
### McLaren Rulez
Hi,
Could someone explain how the following two definitions of the displacement operator are equal? The first is the standard one
1) $e^{\alpha a^{\dagger}-\alpha*a}$
2) $e^{\frac{-|\alpha^{2}|}{2}}e^{\alpha a^{\dagger}}$
What is the reasoning ... | {} |
## anonymous 4 years ago Evaluate w/o using a calulator: sec (11 pi/6) My answer was (2 sqrt3/3) Can someone check if it's right?
1. anonymous
sec (11π / 6) is the same as 1 / cos(11π / 6)
2. anonymous
sec(11pi/6) = 1/cos(11pi/6) cos(11pi/6) we can see from the graph that cos(2pi - x) = cos(x) cos(11pi/6) = cos(2pi... | {} |
# Taking the derivative
1. Aug 2, 2005
### Cyrus
In stewart, page 806 he says:
"In the special case in which the equation of a surface S is of the form z=f(x,y) (that is, S is the graph of a function f of two variables), we can write the equation as
F(x,y,z) = f(x,y) - z = 0
and regard S as a level surface (with ... | {} |
# Accelerated rest frame
1. Feb 14, 2014
### analyst5
I was reading some posts on one of my previous threads (great discussion there btw) and I red something that I really didn't understand.
So the basic premise was that if we have 2 clocks that undergo acceleration on the same level, to that they are mutually at r... | {} |
Program to find length of the largest subset where one element in every pair is divisible by other in Python
PythonServer Side ProgrammingProgramming
Suppose we have a list of unique numbers called nums, so we have to find the largest subset such that every pair of elements in the subset like (i, j) satisfies either ... | {} |
Home > documentation, numerical analysis, Sage, symbolic computation > Lagrange interpolating polynomials
## Lagrange interpolating polynomials
I’ve uploaded a draft of an expository paper presenting some basics of the Lagrange interpolating polynomials, with examples using Sage. The paper also covers Neville’s metho... | {} |
# Programmer at Large: How old is this?
This is the latest chapter in my web serial, Programmer at Large. The first chapter is here and you can read the whole archives here. This chapter is also mirrored at Archive of Our Own.
I awoke to the usual morning startup screen – diagnostics for my sleep, news, patches to my... | {} |
Do 2 Kilowatt Nuclear Reactor Still Exist
i was told that the smallest nuclear reactor power
station is 2 Kilowatts and they take up about
half a city block?
is that correct?
can they be built?
Have A Nice Day!
PhysOrg.com science news on PhysOrg.com >> Leading 3-D printer firms to merge in $403M deal (Update)>> LA ... | {} |
# SBS Transit Express Bus Service 851e
SBS Transit Express Bus Service 851e is a Limited Stop Express route variant of Service 851, plying between Yishun and Outram Park at selected hours daily. It passes through Khatib, Ang Mo Kio, Little India, Bugis and Chinatown, skipping Lentor, Marymount and Thomson. The bus ser... | {} |
# pysal.explore.giddy.markov.homogeneity¶
pysal.explore.giddy.markov.homogeneity(transition_matrices, regime_names=[], class_names=[], title='Markov Homogeneity Test')[source]
Test for homogeneity of Markov transition probabilities across regimes.
Parameters: transition_matrices : list of transition matrices for reg... | {} |
The posterior medial network is at the apex of a temporal integration hierarchy in the brain, integrating information over many seconds of viewing intact, but not scrambled, movies. This has been interpreted as an effect of temporal structure. Such structure in movies depends on preexisting event schemas, but temporal ... | {} |
# mixed permutations and combinations
I have a problem that I am not too sure of. In a team of 16, there are 5 couples and 6 single people. In how many ways can at most 1 couple be chosen if 6 people are required to represent the team at a conference?
This is my solution: 6P6 (0 couples and 6 single people only) + 11... | {} |
# mot package¶
## mot.configuration module¶
Contains the runtime configuration of MOT.
This consists of two parts, functions to get the current runtime settings and configuration actions to update these settings. To set a new configuration, create a new ConfigAction and use this within a context environment using co... | {} |
# Homework Help: Speed and direction of a travelling wave
1. Sep 20, 2015
### sarvensogo
1. The problem statement, all variables and given/known data
$$\Psi(y,t)=A\cos^22\pi(t-y)$$
Show that this is a travelling wave. Use the general form of a travelling wave to determine its speed and direction.
Verify your answer ... | {} |
# According to the constitution, how many people represent each state in the house of representatives?
###### Question:
According to the constitution, how many people represent each state in the house of representatives?
### Which of the following are abrahamic faiths?check all that apply(no) buddhism(yes) roman cat... | {} |
# American Institute of Mathematical Sciences
February 2014, 7(1): 127-137. doi: 10.3934/dcdss.2014.7.127
## On the existence of solution for a Cahn-Hilliard/Allen-Cahn equation
1 Institute of Applied and Computational Mathematics, FO.R.T.H., and Department of Applied Mathematics, University of Crete, P.O. Box 220... | {} |
Intermediate Algebra (12th Edition)
Published by Pearson
Chapter 7 - Section 7.2 - Rational Exponents - 7.2 Exercises - Page 448: 27
-1024
Work Step by Step
As shown on page 445, we know that $a^{\frac{m}{n}}=\sqrt[n] a^{m}=(\sqrt[n] a)^{m}$. Therefore, $-16^{\frac{5}{2}}=-(\sqrt[2] 16^{5})=-((\sqrt 16)^{5})=-(4^{... | {} |
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# AP Calculus AB : Fundamental Theorem of Calculus
## Example Questions
← Previous 1 3 4
### Example Question #1 : Fundamental Theorem Of Calculus
Evaluate .
Does not exist
Explanation:
Even though an antideritvative of does not exist, we can still use the Fundamental Theorem of Calculus to "cancel out" the int... | {} |
# How do we use the term "of" in arithmatic operations?
Jun 12, 2017
See explanation.
#### Explanation:
The term "of" is usually meant as a multiplication operation. For example:
$2$ "of" $3$ $= 6$
Hope this helped!
Jun 12, 2017
OF is used as a multiplication operation.
#### Explanation:
The term OF is used a... | {} |
# Find the solution of this ln equation
1. Feb 10, 2009
### transgalactic
find the solution of this ln equation:
ax=lnx
i tried:
$$e^{(ax)}=x$$
$$e^{(ax)}-x=0$$
what to do next??
i thought of building a taylor series around 0 for ln
but ln(0) is undefined
??
Last edited: Feb 10, 2009
2. Feb 10, 2009
### Toftarn... | {} |
# Percent Worksheets
Percent Worksheets
• Page 1
1.
The number of goals scored by a football team increased from 48 to 52 this season. Find the percent of increase to the nearest tenth.
a. 13.3% b. 8.3% c. 18.3% d. 10.3%
2.
The number of wins of a basketball team increased from 17 to 19 this season. Find the percent... | {} |
This is the user guide for Duplicacy Web Edition. The user guide for the old GUI version can be found here.
### Installation
On Windows and macOS, Duplicacy Web Edition is provided as installers. Installation is needed before you can start the executable.
On Linux, Duplicacy Web Edition is provided as executables an... | {} |
# Complete course of self-study [closed]
I am about $16$ years old and I have just started studying some college mathematics. I may never manage to get into a proper or good university (I do not trust fate) but I want to really study mathematics.
I request people to tell me what topics an undergraduate may/must study... | {} |
# JavaScript - Remove an Item from an Array
There are multiple ways to remove a particular element from an Array in JavaScript. We will explore the most commonly used ways.
First, let's define our array:
const ourArray = [1, 2, 3, 4, 5, 6];
## Remove last item from array
ourArray.pop();
// ourArray = [1, 2, 3, 4, ... | {} |
# Expectation Value Of a Charge density
Consider a particle (without spin) and spatial coordinate vector $$\vec{q}$$ and charge number Z. Classically, the >charge density of the particle is:
$$\rho(\vec{r}) = Ze\delta(\vec{r}-\vec{q}) \tag{1}$$
whereas $$\delta$$ is the Dirac-Delta-Function.
From the corespondence ... | {} |
# Finance problem recursive formula
Tags:
1. Oct 20, 2012
### Niaboc67
1. The problem statement, all variables and given/known data
Daniel deposits $400 at the end of each month for 7 years in an account paying 1.6% compounded monthly. He then puts the total amount on deposit in another account paying 2.2% interest ... | {} |
# What is the graph of the system y < x+1 and y>x?
Dec 26, 2015
See solution below
#### Explanation:
graph{y < x + 1 [-10, 10, -5, 5]}
The graph above represents y < x + 1
graph{y > x [-10, 10, -5, 5]}
The graph above represents the y > x.
To graph the system, you have to shade in the area that is shared by bot... | {} |
10 views
The position vector of a particle is given as $\vec{r}=\left(t^{2}-4 t+6\right) \hat{i}+\left(t^{2}\right) \hat{j}$. The time after which the velocity vector and acceleration vector becomes perpendicular to each other is equal to
(A) $1 \mathrm{sec}$
(B) $2 \mathrm{sec}$
(C) $1,5 \mathrm{sec}$
(D) not poss... | {} |
# multiplying complex numbers with square roots
The answer is that “angles add”. It's because we want to talk about complex numbers and simplifyi… With the help of the community we can continue to But we could do that in two ways. 101 S. Hanley Rd, Suite 300 Taking advantage of the Power of a Product Rule: If you've f... | {} |
# Annuity immediate problem 1 answer below »
consider an annuity immediate with monthly payments for twenty years. the payments are level in the course of each year, then increase by 2% for the next year. find the present value of this annuity if the initial payment is $1,000 and i = 4% ## 1 Approved Answer ABHISHEK K... | {} |
Arithmetic of Remainders | Math Olympiad
Let's discuss a problem based on Arithmetic of Remainders and understand the concept behind it.
Consider the two number: 37 and 52
What is the remainder when we divide 37 by 7? 2 of course. And 52 produces remainder 3 when divided by 7. Suppose we want to know the remainder w... | {} |
# 2.15: Chemical Symbols and Formulas
### How do chess players monitor their moves in a game?
Suppose you were walking along and noticed a piece of paper on the ground with markings on it. You pick it up and see the paper in the picture above.
To most people, these notes are meaningless (maybe they're a secret spy ... | {} |
# Bad Apologetics on Bayes - Part 3
In #bayesian #probability #religion #religion
In this YouTube episode, Bad Apologetics Ep 18 - Bayes Machine goes BRRRRRRRRR I join Nathan Ormond, Kamil Gregor, and James Fodor to discuss Timothy and Lydia McGrew's article in The Blackwell Companion to Natural Theology entitled "Ch... | {} |
next: Validation
## Definitions
In CUE, schema are typically written as Definitions, using a :: instead of :. This tells CUE that they are to be used for validation and should not be output as data; it is okay for them to remain unspecified.
A definition also tells CUE the full set of allowed fields. In other words,... | {} |
# zbMATH — the first resource for mathematics
Introduction to Shimura varieties with bad reduction of parahoric type. (English) Zbl 1148.11028
Arthur, James (ed.) et al., Harmonic analysis, the trace formula, and Shimura varieties. Proceedings of the Clay Mathematics Institute 2003 summer school, Toronto, Canada, June... | {} |
## Wednesday, April 30, 2008
### AAAC in Hong Kong
I just came back from an all too short trip to Hong Kong for the first annual meeting of the new Asian Association for Algorithms and Computation. The AAAC would like to become the Asian version of SIGACT and EATCS. The conference was a good start but dominated by th... | {} |
# Article
Full entry | Fulltext not available (moving wall 24 months)
Keywords:
non-cyclic $p$-subgroup; $p$-nilpotent; self-normalizing subgroup; normal subgroup
Summary:
A theorem of Burnside asserts that a finite group $G$ is \mbox {$p$-nilpotent} if for some prime $p$ a Sylow \mbox {$p$-subgroup} of $G$ lies in th... | {} |
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Math Central Quandaries & Queries
Question from Jerry, a parent: Aaron works part time as a salesperson for an electronics store. He earns $4.75 per hour plus a percent commission on all of his sales. Last week Aaron worked 20 hours and earned a gross income of$143.75. If his total sales for the week were... | {} |
1. If you are a new user, please register to get an Indico account through https://login.ihep.ac.cn/registIndico.jsp. Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
2. The name of any uploaded file should be in English or plus numbers, not containing any Chinese or special characters.
3. If you... | {} |
# Monroe Eskew: Local saturation of the nonstationary ideals
Talk held by Monroe Eskew (KGRC) at the KGRC seminar on 2018-03-22.
Abstract: It is consistent relative to a huge cardinal that for all successor cardinals $\kappa$, there is a stationary $S \subseteq \kappa$ such that the nonstationary ideal on $\kappa$ re... | {} |
Recognitions:
Gold Member
## Material Science Questions....
I finally got to exercise a bit of material science. I'd like to know whether what I'm saying correct or no. I also ran into two issues with Brinell's hardness calculations and SEA chart. I'd appreciate feedback! :)
1) Decreasing the size of the nucleus cau... | {} |
Question
Gwen and Cathy went shopping. After Gwen spent $52w, Cathy had 5 times as much as Gwen. If Gwen had$26w more than Cathy at first,
1. Express the amount of money that Gwen had at first in terms of w.
2. If w = 26, find the amount of money the two lady had left after shopping.
3 m
(a)
Click button first when a ... | {} |
# HEP Experiments and Projects
The Experimental Particle Physics group is involved in the following projects:
The group was also involved in the CDF experiment at Fermilab, studying high-energy proton-antiproton collisions and in the ZEUS experiment at Hamburg, studying high-energy electron-proton collisions. | {} |
# Measuring volume change from change in mass
I want to measure the expansion (by change in volume) of a material in liquid. However the shapes are so complex that I can only measure their mass. Is it possible to compute the volume of the expanded shape by measuring its mass alone?
Given mass $m_0$ at $t_0$ and mass ... | {} |
Students can access the CBSE Sample Papers for Class 11 Applied Mathematics with Solutions and marking scheme Term 2 Set 4 will help students in understanding the difficulty level of the exam.
## CBSE Sample Papers for Class 11 Applied Mathematics Term 2 Set 4 for Practice
Time : 2 Hours
Maximum Marks : 40
General I... | {} |
# Linear regression
1. Oct 26, 2012
### iVenky
I read about "Linear regression" and I want to make sure that what I read is right
Just tell if these equations are right-
Slope of line of regression for y on x is given by
$m=\frac{E(XY)-E(X)E(Y)}{E(X^{2})-[E(X)]^{2}} \\ m=\frac{Cov(XY)}{Var(X)} \\ m=\frac{ρσ_{x}σ_... | {} |
# Elephant Specification Language Manual¶
Welcome to the Elephant Specification Language manual. This manual will introduce you to the reason behind and concepts within the Elephant Specification Language, or ESL for short. For a more in-depth explanation of ESL’s foundations check out the Elephant Specification Langu... | {} |
### send_nodes's blog
By send_nodes, history, 6 years ago,
Hi everyone, here are the solutions to the contest problems.
712A — Memory and Crow
Note that a[i] + a[i + 1] = b[i]. Use the initial condition b[n] = a[n] and we can figure out the entire array b.
Time Complexity: O(n)
Code
712B — Memory and Trident
Fi... | {} |
Question
# A line passes through (2,2) and has x-intercept and y-intercept as α units and β units respectively. It makes a triangle of area A with co-ordinate axes. Then the quadratic equation whose roots are α and β is : (α>0,β>0)x2−2Ax+2A=0x2−Ax+2A=0x2+2Ax+2A=0x2+Ax+2A=0
Solution
## The correct option is B x2−Ax+2... | {} |
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## How to create... | {} |
The extraction of Mn from pyrolusite with aluminum produces pure Mn metal and $\mathrm{Al}_{2} \mathrm{O}_{3}$. Calculate the heat of reaction
Question:
The extraction of Mn from pyrolusite with aluminum produces pure Mn metal and $\mathrm{Al}_{2} \mathrm{O}_{3}$. Calculate the heat of reaction $\left(\Delta H_{\math... | {} |
# If the mean of observation x1, x2,
Question:
If the mean of observation $x_{1}, x_{2}, \ldots, x_{n}$ is $\bar{x}$, then the mean of $x_{1}+a, x_{2}+a_{1} \ldots \ldots, x_{n}+a$ is
(a) $a \bar{x}$
(b) $\bar{x}-a$
(c) $\bar{x}+a$
(d) $\frac{\bar{x}}{a}$
Solution:
The mean of $x_{1}, x_{2}, \ldots, x_{n}$ is $... | {} |
### hmehta's blog
By hmehta, history, 8 months ago, ,
Hey All!
Topcoder SRM 767 is scheduled to start at 07:00 UTC -4, Sept 18, 2019.
Problem Writers: Arpa and minimario
Registration is now open for the match in the Web Arena or Applet and will close 5 minutes before the match begins.
Good luck to everyone!
Matc... | {} |
## andrewsurfs4995 Group Title What is the vertex for the graph of y = 2x2 + 12x + 10? one year ago one year ago
1. baldymcgee6 Group Title
|dw:1358913254412:dw|
2. satellite73 Group Title
first coordinate of the vertex of $$ax^2+bx+c$$ is always $$-\frac{b}{2a}$$
3. satellite73 Group Title
in your case it is $$-... | {} |
# 2014 USAJMO Problems/Problem 4
## Problem
Let $b\geq 2$ be an integer, and let $s_b(n)$ denote the sum of the digits of $n$ when it is written in base $b$. Show that there are infinitely many positive integers that cannot be represented in the form $n+s_b(n)$, where $n$ is a positive integer.
## Solution 1
Define... | {} |
# Begin by graphing $f(x)=2^{x} .$ Then use transformations of this graph to graph the given function. Be sure to graph
###### Question:
begin by graphing $f(x)=2^{x} .$ Then use transformations of this graph to graph the given function. Be sure to graph and give equations of the asymptotes Use the graphs to determin... | {} |
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Environ Eng Res > Volume 20(4); 2015 > Article
Krueyai, Punyapalakul, and Wongrueng: Removal of haloacetonitrile by adsorption on thiol-functionalized mesoporous composites based on natural rubber and hexagonal mesoporous silica
### Abstract
Haloacetonitriles (HANs) are... | {} |
# Acceleration and Displacement from a Velocity vs. Time Graph
#### gnits
Homework Statement
Find the acceleration and displacement of a particle from its velocity versus time graph
Homework Equations
a=dv/dt
Part (a) is no problem. Acceleration is the gradient of the graph in regions OA and AB which gives 3 and 0.5... | {} |
# What equal monthly investment is required over a period of 40 years to achieve a balance of...
What equal monthly investment is required over a period of 40 years to achieve a balance of $2,200,000 in an investment account that pays monthly interest of 0.25% if monthly interest is 2.5%? ## Savings accounts Savings a... | {} |
New Titles | FAQ | Keep Informed | Review Cart | Contact Us Quick Search (Advanced Search ) Browse by Subject General Interest Logic & Foundations Number Theory Algebra & Algebraic Geometry Discrete Math & Combinatorics Analysis Differential Equations Geometry & Topology Probability & Statistics Applications Ma... | {} |
# What is the simplest chiral spherical harmonic?
What is the simplest (lowest order) real spherical harmonic that cannot be rotated into its own mirror image? I would like to make an illustration of a simple smooth chiral object, but cannot find a good example.
Edit: I should have clarified that I need a linear comb... | {} |
# Evaluating an integral using Cauchy's Integral Formula
I am having a little bit of trouble with the following:
$$\int_{\gamma}\frac{z^2-1}{z^2+1}dz$$ where $\gamma$ is a circle of radius $2$ centered at 0. I am trying to separate this or simplify it into the form in which we can maybe apply Cauchy's differentiation... | {} |
Next: , Previous: Laguerre Functions, Up: Special Functions
### 7.23 Lambert W Functions
Lambert's W functions, W(x), are defined to be solutions of the equation W(x) \exp(W(x)) = x. This function has multiple branches for x < 0; however, it has only two real-valued branches. We define W_0(x) to be the principal bran... | {} |
• 论文 •
### 中国桂樱属植物的分类研究
1. 北京, 中国科学院植物研究所
• 出版日期:1984-12-15 发布日期:2016-06-13
### TAXONOMIC STUDY ON THE GENUS LAUROCERASUS TOURN EX DUH.OF CHINA
Lu Ling-ti
1. Institute of Botany, Academia Sinica, Beijing
• Online:1984-12-15 Published:2016-06-13
Abstract: The present paper is a preliminary study on Chinese specics... | {} |
$$\displaystyle{\left({3}{x}^{{2}}+{2}{x}+{4}\right)}+{\left({8}{x}^{{2}}-{x}+{1}\right)}=$$
• Questions are typically answered in as fast as 30 minutes
### Solve your problem for the price of one coffee
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Example:
$$\displaystyle{\left({x}+{2}\righ... | {} |
Canadian Mathematical Society www.cms.math.ca
location: Publications → journals → CJM
Abstract view
# Group Actions and Codes
Published:2001-02-01
Printed: Feb 2001
• V. Puppe
Format: HTML LaTeX MathJax PDF PostScript
## Abstract
A $\mathbb{Z}_2$-action with maximal number of isolated fixed points'' ({\it i.e.},... | {} |
### Home > CCA2 > Chapter 3 > Lesson 3.2.2 > Problem3-79
3-79.
How many solutions does each equation below have?
What is the highest power of $x$? That is the number of solutions you should be trying to find. But, remember that some equations have no solution and others have infinitely many solutions. Try solving ea... | {} |
# Center for Analysis and Design of Intelligent Agents
### Site Tools
public:t-701-rem4:scales_display_of_data
# Differences
This shows you the differences between two versions of the page.
public:t-701-rem4:scales_display_of_data [2008/10/29 14:58]
thorisson
public:t-701-rem4:scales_display_of_data [2008/10/29 15... | {} |
Calculate current flowing from one cylinder to another
1. Jul 23, 2017
1. The problem statement, all variables and given/known data
Two long concentric cylinders of radii .04 m and .08 m are separated by aluminum. The inner cylinder has a charge per unit length of $\Lambda$ at any time. When the two cylinders are mai... | {} |
If $$f$$ and $$g$$ are respectively a differentiable function and a convex, lower semi-continuous function, then the algorithm defined by:
$$x^{k+1} = \text{prox}_{\gamma{g}}[x^{k} - \gamma\nabla{f(x^{k}})]$$
converges to $$\text{argmin}[f+g]$$.
This is justified by the fact that if $$x^{*}$$ is a minimizer of $$f+g... | {} |
58KiB, 165x236, i30814.png
No.12008161
Why is Ten related to Akagi? i know Ten is an Akagi sequel, but it seems totally unrelated to me. | {} |
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Two trains, each of length 100 m... | {} |
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Directions: Given below are the forecasts of the World and SA energy demand for the years 1980, 1990 and 2000 AD and the forecast made for these years follows for the subsequent decade as well. For example, the forecast for 1990 means the forecast for years 1990-1999. The demand is given in million barrels... | {} |
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### Abstract
Linear-response functions and second-order transition amplitudes can be calculated exactly provided one effective state, the solution of an inhomogeneous Schrodinger equation, is known. We show how variational principles can be applie... | {} |
## Mixed-effects modeling — four hour workshop — part II: Data Exploration
We got our data together in Part I of this workshop, eventually arriving at the collation of a single dataframe in ‘long format’ holding all our data on subject attributes, item attributes and behavioural responses to words in a lexical decisio... | {} |
# Difference: PhysicsResultsSUS14016 (10 vs. 11)
#### Revision 112015-09-03 - JohannesSchulz
Line: 1 to 1
META TOPICPARENT name="SUSYPhotonWorkingGroup"
Line: 43 to 43
Figure 8: Measurement of the trigger efficiency of the photon part as a function of the transverse momentum of the photon with the highest transve... | {} |
# Isogonal trajectory
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
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A plane curve intersecting the curves of a given one-parameter family in the plane at one and the same angle. If
$$F(x,y,y')=0\label{1}\tag{1}$$
is the differential equation of the given fami... | {} |
# Printing documents to tiff
I have a faxing program that only accepts TIFF files to send. It don't have any utility to convert documents to TIFF and i have to convert them myself. Even worse, it only accepts monochrome TIFF Files with 200x200 dpi and Width of 1728 pixels!
I found Peernet TIFF Image Printer that is r... | {} |
# Minimum distance of nodes from a set of two nodes
In an unweighted tree, suppose that we want to delete (or mark) any node which is closer to node $$v$$ than node $$w$$ ($$dist(x,v) < dist(x,w)$$). The solution that comes to my mind is running two BFS, which gives us $$\mathcal{O}(V + E)$$ running time.
Is there an... | {} |
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# Answer to Question #65485 in Microeconomics for pepper
Question #65485
Suppose that Billy's preferences over baskets containing milk (good x), and coffee (good
y ), are described by the utility function U(x; y ) = xy +2x. Billy's corresponding margin... | {} |
Calculating amount of HCL required
1. Aug 16, 2016
JonnyG
1. The problem statement, all variables and given/known data
Suppose Iron(II) Sulfide is reacted with hydrogen chloride. How many grams of HCl is required is react with 75.0 grams of Iron (II) Sulfide ore of which 30% is inactive.
2. Relevant equations
3. T... | {} |
# What's this called? A small Gaussian at every data point to estimate probability
Say I have a dataset $X \subset{\mathbb R}^d$ (assumed to be iid samples) and I want to estimate the probability density of some unseen point y under that (unknown distribution). One way of doing that is by placing a Gaussian with small... | {} |
Convergence of seriesApplication of the ratio, root or integral test on a series.Calculation of the Taylor seriesCalculates and draw the graph of the first n elements of the Taylor series for an entered function.Calculation of the Fourier seriesCalculates and draw the graph of the first n elements of the Fourier series... | {} |
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