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# ImageUtils¶
This module contains several utility function that operate on the image.
maskstarSEG “cleans” the image of stars and other objects that emit light if they do not occlude the segmentation map.
maskstarPSF uses the star catalogue and information on the PSF in the FITS image header if both are available i... | {} |
## Daily Announcements
### Thursday, May 4, 2017
Thursday, May 4, 2017
Thursday, May 4, 2017
DAILY ANNOUNCEMENTS
Staff: a reminder of those helping during period 4 with the Showcase Rehearsal on Friday (set up is Period 4 so that the Drama can continue with access to the Stage Friday)
TECH CREW:
Those helping w... | {} |
# American Institute of Mathematical Sciences
• Previous Article
Approximate controllability of a Sobolev type impulsive functional evolution system in Banach spaces
• MCRF Home
• This Issue
• Next Article
On the nonuniqueness and instability of solutions of tracking-type optimal control problems
doi: 10.3934/mcrf.202... | {} |
This post discusses the connection between one of my own papers, Deep Adaptive Design (DAD), and the field of Bayesian reinforcement learning. That such a connection exists is hinted at by a high-level appraisal of the DAD method: it solves a sequential decision making problem to optimise a certain objective function, ... | {} |
# Prepare HTTP Bearer Token Authentication
This how-to will explain how a Bearer Token can be requested from an authentication server. This will be required to connect the Service Catalog to the Service Broker.
## Preparations
• Have access to an authentication server that has a JWKS endpoint.
## Inspect the OpenID... | {} |
# hi just need a quick hand not the answer please
• Feb 21st 2009, 03:30 AM
alpharebel10
hi just need a quick hand not the answer please
the question is
z = (2-i)
w=(5+3i)
so work out
a)zw
b)z/w
both of which i can do with no problem but the last bit is
c) |w|
can some one please tell me what the 2 straight lines mean... | {} |
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
$9p^4-6p^2q^3+q^6$
Using $(a+b)^2=a^2+2ab+b^2$ or the square of a binomial, the given expression, $(3p^2-q^3)^2 ,$ is equivalent to \begin{array}{l}\require{cancel} (3p^2)^2+2(3p^2)(-q^3)+(-q^3)^2 \\\\= 9p^4-6p^2q^3+q^6 .\end{array} | {} |
Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles an... | {} |
# local acyclicity when restricting to an hypersurface
Let $$X$$ be a smooth scheme over $$\mathbb{C}$$ and a constructible sheaf $$K$$ of complex vector spaces on $$X\times\mathbb{A}^1$$ and a function $$g:X\rightarrow \mathbb{A}^1$$. Suppose that $$K$$ is locally acyclic with respect to the composition $$g\circ p$$,... | {} |
# A K-theory isomorphism
I found this identities in a paper on Floquet topological classification which the author mentioned as a "well-known K-theory isomorphism"
$$K_{R}^{0,n}(S^1\times X, \{0\}\times X) = K_R^{0,n+1}(X).$$
Here $$S^1$$ is a circle (corresponding to time) and $$\{0\}$$ is a point in the circle (th... | {} |
Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic
Atmos. Chem. Phys., 18, 4187-4199, 2018
https://doi.org/10.5194/acp-18-4187-2018
Atmos. Chem. Phys., 18, 4187-4199, 2018
https://doi.org/10.5194/acp-18-4187-2018
Research art... | {} |
mersenneforum.org Algebraic factors in sieve files
Register FAQ Search Today's Posts Mark Forums Read
2017-01-15, 18:09 #23 pepi37 Dec 2011 After milion nines:) 24018 Posts Compromise: write a small program, ( portable to Linux and WIn) that will remove all other factors that can be removed. In that case, since ... | {} |
## Weapons of mass distraction
Points: 1
Time limit: 1.0s
Memory limit: 512M
Authors:
Problem types
Gozz has decided that simply ruling PCS and UCC isn't enough, he wants to rule the entire planet! He has discovered the location of a bomb making facility that he plans to infiltrate to steal their technology to creat... | {} |
# Using discrete examples in the beginning of integration
In Germany, one usual example to start teaching about integrals is to look at a simple (piecewise constant or with constant slope) functions that make up a water flow vs. time diagram and ask about the total flow during a given time span. This leads to the idea... | {} |
#jsDisabledContent { display:none; } My Account | Register | Help
### British Library Collection
The collection of the British Library embraces virtually all known languages. It traces its formal history to the foundation of the British Museum Library in 1753. The quality, size and depth of the Library's collection ... | {} |
# Graphically Illustrate Multicollinearity: Venn Diagram
Multicollinearity is a common problem in econometrics. As explained in a previous post, multicollinearity arises when we have too few observations to precisely estimate the effects of two or more highly correlated variables on the dependent variable. This post t... | {} |
• ### Distance-preserving graph contractions(1705.04544)
Feb. 13, 2019 cs.DS
Compression and sparsification algorithms are frequently applied in a preprocessing step before analyzing or optimizing large networks/graphs. In this paper we propose and study a new framework contracting edges of a graph (merging vertices i... | {} |
# Find the largest possible value of n, such that there exists n real numbers which satisfy this case?
... we can write an exhaustive search to find the largest number ... called n, Test if there exists non ... by changing the value for packages. Include the case ... - Read more
As n grows large, the n 2 term will co... | {} |
# IBPS Clerk :: Quantitative Aptitude :: Test 63 IBPS Recruitment Latest Govt Jobs
## Home IBPS Clerk / Quantitative Aptitude Test 63 Questions and Answers
1 .
Suhas decided to donate 15% of his salary. On the day of donation he changed his mind and donated Rs. 1,650 whichwas $11\over 15$th of what he had decided to ... | {} |
# pyrimidine vs purine
• Purine has a pyrimidine ring and an imidazole ring. As a group, they are called "nitrogenous bases." Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. Comparing and Contrasting Purines and Pyrimidines, Nitrogenous Bases ... | {} |
# Global configuration
Most of the behaviour of dtrackr can be specified at the individual call level using the .headline and .messages glue specifications to define a format. Sometimes however this is annoying to do for all the stages in a flow chart and a global configuration of behaviour is desirable.
## Naming co... | {} |
- Current Issue - Ahead of Print Articles - All Issues - Search - Open Access - Information for Authors - Downloads - Guideline - Regulations ㆍPaper Submission ㆍPaper Reviewing ㆍPublication and Distribution - Code of Ethics - For Authors ㆍOnline Submission ㆍMy Manuscript - For Reviewers - For Editors
Generalized Hermi... | {} |
Primary tabs
Title:
Search for $W' \rightarrow tb \rightarrow qqbb$ Decays in pp Collisions at $\sqrt{s}$ = 8 TeV with the ATLAS Detector
Collaboration:
Atlas
E-Print:
Journal:
inSpire URL:
DOI:
123
Description:
Owner:
Unclaimed
Run Conditions
Name:
8 TeV
Description:
20.3 fb$^{-1}$ at 8 TeV | {} |
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Math Central Quandaries & Queries
Question Deepak: How do I simplify this complex equation: z=1/(2^i)
Hi Deepak,
$\large \frac{1}{2^i}$ can be written $2^{-i}$ and Euler's formula says that for a real number $\theta$
$e^{i \theta} =cos \theta + i \sin \theta$
so you can simplify
$z = \frac{1}{2^i}$
... | {} |
# Multi-Digit Division
Students explore multi-digit division and its applications, which include interpreting a remainder in division word problems and using division to interpret a repeating pattern.
Math
Unit 3
## Unit Summary
In this unit, students explore the concept of multi-digit division and its application... | {} |
You are here
Home > Uncategorized > SSC Quant Mix Quiz
# SSC Quant Mix Quiz
Q1. One tap can fill a water tank in 40 minutes and another tap can make the filled tank empty in 60 minutes, If both the taps are open, in how many hours will the empty tank be filled?
(a) 2 hours
(b) 2.5 hours
(c) 3 hours
(d) 3.5 hours
... | {} |
# Python - Creating a variance function
#1
I am new to python coding and I am trying to make my own functions such as mean and standard deviation on my own as practice. However, I am having trouble making a function for finding variance. the formula being
variance = \frac{1}{N - 1} \sum_{i = 1}^{N} (x_i - \mu_x)^2
... | {} |
# Matematički blogovi
### Maryam Mirzakhani New Frontiers Prize
Terrence Tao - Uto, 2019-12-10 21:17
Just a short post to announce that nominations are now open for the Maryam Mirzakhani New Frontiers Prize, which is a newly announced annual \$50,000 award from the Breakthrough Prize Foundation presented to early-ca... | {} |
## Monday, March 30, 2015
### Definition of Gly HA2 and HA3 nomenclature in PDB and BMRB files
Note to self:
HA2 is pro-R and HA3 is Pro-S. HA2 corresponds to HA in the other amino acids
Thanks to +Lars Bratholm for figuring this out.
## Saturday, March 28, 2015
### Selecting full residues within a certain distan... | {} |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
# 20.2: Reproduction in Mammals
Difficulty Level: At Grade Created by: CK-12
## Lesson 20.2: True or False
Name___________________ Class______________ Date________
Write true if the s... | {} |
# Splices for a compression member are designed as?
1. Pedestal
2. Long column
3. Short column
4. Compression block
Option 3 : Short column
## Detailed Solution
Explanation:
Column splices:
(i) A splice is a joint provided in the length of the member.
(ii) In case of column splice, if the load is truly concentri... | {} |
System type, climate and grid
On the navigation page Type of plant, climate and grid the first, external parameters of the photovoltaic system are defined. The figure illustrates the different areas for defining the planned PV system.
• Under area 1 (Type of installation) the type of installation is selected (such as... | {} |
# Block sliding on top of cart
Homework Statement
A block of mass m =0.75 kg is set on a large cart of mass M = 6.5 kg. The cart's rollers are frictionless, but there is a coefficient of kinetic friction of 0.36 between the cart's surface and the block. The cart is at rest when the block is given an initial speed of 5... | {} |
# find the value that satisfies intial conditions
• August 18th 2009, 11:31 AM
dat1611
find the value that satisfies intial conditions
It is easy to check that for any value of c, the function
y=ce^–2x+e^–x
is solution of equation
y+2y=e^–x
Find the value of c for which the solution satisfies the initial condition y(... | {} |
# Problem in a non-inertial frame
1. Dec 13, 2006
### coolguy
hey guys!
i have a problem in physics which i could'nt solve:
a car is moving with constant linear acceleration a along horizontal x-axis. A solid sphere of mass M and radius R is found rolling without slipping on the horizontal floor of the car in the s... | {} |
# Why does plotting Collatz sequences in polar coordinates produce a cardioid and nephroid?
I generated the Collatz sequences for the first 2,000 starting integers, and plotted these sequences "on top of each other" in polar coordinates, using a fixed radius and with each element in the sequence as theta (converted to... | {} |
Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic
The Cryosphere, 12, 3161–3175, 2018
https://doi.org/10.5194/tc-12-3161-2018
The Cryosphere, 12, 3161–3175, 2018
https://doi.org/10.5194/tc-12-3161-2018
Review article 04 Oct 2018
Review articl... | {} |
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## Lemma: Upper Bound of Harmonic Series Times Möbius Function
The infinite series built from terms of the harmonic series $\sum_{n=1}^\infty\frac{1}{n}$ multiplied by the Möbius function $\mu(n)$ has the following upper bound:
$$\left|\sum_{n... | {} |
# How is Vanadium's 3+ ion paramagnetic?
"Both Vanadium and its 3+ ion are paramagnetic. Use electron configuration to explain why this is so"
The electron configuration of Vanadium is [Ar] 4s2 3d3.
If drawn in a box diagram, it would be shown that the electron in the $d$ orbitals aren't paired. This explains how an... | {} |
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# Q100252: Automating the Frame Server setup
#### SUMMARY
Setting up the Frame Server can be tedious as it requires a long Python command to be executed, however there are some simple ways of optimising this through basic bash scripting. This article explains how this can be done.
Slaves for ... | {} |
How to implement a Excess 3 to BCD Converter?
The Rock
Joined Sep 25, 2011
3
I need to convert Excess 3 to BCD.
What are my inputs in the truth tables so that i can do the K Maps?
I understand that
-3 = 0000 ( Don't care)
-2 = 0001 ( Don't care)
-1 = 0010 ( Don't care )
0 = 0011
1 = 0100
etc n so on..until 10, 11, 12... | {} |
# How are draws without replacement formalized? Suppose I have some i.i.d. random variables X_1,…,X_n which represent the nth balls drawn uniformly from a bin without replacement.
How are draws without replacement formalized?
Suppose I have some i.i.d. random variables ${X}_{1},\dots ,{X}_{n}$ which represent the nth ... | {} |
## Marco Bittelli, Gaylon S. Campbell, and Fausto Tomei
Print publication date: 2015
Print ISBN-13: 9780199683093
Published to Oxford Scholarship Online: August 2015
DOI: 10.1093/acprof:oso/9780199683093.001.0001
Show Summary Details
Page of
PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) ... | {} |
Watch all Cases
Find the number of all non-negative solutions to the equation $$x+y+z = 2016$$ under the condition that $$x \leq y \leq z.$$
× | {} |
# Heat Transfer
Written by Jerry Ratzlaff on . Posted in Thermodynamics
Heat transfer, abbreviated as Q, also called thermal energy, is the exertion of power that is created by heat, or the increase in temperature. It is the transfer of heat from one system to another. There are four ways to transfer heat: conducti... | {} |
# How do you find the exact values of tan^-1(0)?
Apr 20, 2017
$\arctan 0 = 0$
#### Explanation:
Let $\theta = \arctan 0$
$\tan \theta = 0$
$\tan \theta = \sin \frac{\theta}{\cos} \theta = 0$
$\sin 0 = 0 \therefore$
$\theta = 0$
$\arctan 0 = 0$
Note: $\theta$ can take other values such that $\tan \theta = 0$, ... | {} |
## Introduction
The Kv1.3 channel is a voltage-activated potassium (Kv) channel that is abundantly expressed on T cells where it plays an essential role in cell activation1,2,3,4. T cell activation is initiated when the T cell receptor engages with an antigen-presenting cell which in turn drives rapid calcium ion infl... | {} |
# Distance Finding with RF Ping
#### tehmarkster
Joined Feb 11, 2011
2
The team I'm working with is trying to design a position finding system that would work in an area with a 25m radius with a relatively high resolution. What I've determined is that to get the most accurate results you want to do this with a ping (... | {} |
#193 \label and \ref
None
open
nobody
5
2012-11-18
2011-04-14
Anonymous
No
I have a macro that I use to define subsections in my own way:
\def\new_sec#1#2{\pagebreak[3]\begin{sub}\label{#2}{\sc\small\small
1}\rm\medskip}
One of the parameters is the label I use for this subsection. But when I use \ref{} the name of... | {} |
# Definition:Complete Graph
## Definition
Let $G = \left({V, E}\right)$ be a simple graph such that every vertex is adjacent to every other vertex.
Then $G$ is called complete.
The complete graph of order $p$ is denoted $K_p$.
## Examples
The first five complete graphs are shown below:
## Also see
• Results abo... | {} |
The University of Southampton
University of Southampton Institutional Repository
# Parametric Polynomial Time Perceptron Rescaling Algorithm
Kharechko, Andriy, (2006) Parametric Polynomial Time Perceptron Rescaling Algorithm Broersma, Hajo, Dantchev, Stefan, Johnson, Matthew and Szeider, Stefan (eds.) In Algorithms a... | {} |
- Current Issue - Ahead of Print Articles - All Issues - Search - Open Access - Information for Authors - Downloads - Guideline - Regulations ㆍPaper Submission ㆍPaper Reviewing ㆍPublication and Distribution - Code of Ethics - For Authors ㆍOnlilne Submission ㆍMy Manuscript - For Reviewers - For Editors
Endomorphisms of... | {} |
## How To Find The K Value Of A Sine Function
Exploration of the Sine Curve University of Georgia
You cannot find the value of Sine infinite and cosine infinite. However, you can certainly say that it will lie between -1 and 1. However, you can certainly say that it will lie between -1 and 1. Mostly, sine infinite is ... | {} |
Since weight is the force extended by the gravitational force on a mass it is represented by formula W = m*g, where weight can be kg * m/s 2 which is equal to N. Following is the table with the SI unit, CGS unit, and the dimension of weight: Weight has dimensions of force or Newtons in SI units. Mass has dimensions of ... | {} |
### Black lives matter. Anyone? Anyone?
I simultaneously have much to say and little to say about the killings of Michael Brown and Eric Garner. I have much to say because these men are so similar to the Black men in my life: my uncles, cousins, nephews, my sons, myself. I don't have much to say because, hell, what is... | {} |
Your first R package: A tutorial
ALT: Logos for R, devtools and Rstudio
Table of Contents
This is a tutorial on how to create a bare-bones R package. The tutorial was developed for a JDI Open seminar.
The tutorial draws heavily from the “The whole game” chapter in the R Packages book by Hadley Wickham and Jenny Bry... | {} |
# Dijkstra's Algorithm for Grids in Python
There are many resources for implementing Dijkstra's algorithm for graphs on the internet, but there are few resources for implementing the algorithm for the special case where the graph is a 2d grid with obstacles. Moreover, the various library implementations all assume som... | {} |
Chapter 15.2, Problem 55E
### Calculus: Early Transcendentals
8th Edition
James Stewart
ISBN: 9781285741550
Chapter
Section
### Calculus: Early Transcendentals
8th Edition
James Stewart
ISBN: 9781285741550
Textbook Problem
# Evaluate the integral by reversing the order of integration. ∫ 0 1 ∫ arcsin y π / 2 cos ... | {} |
# American Institute of Mathematical Sciences
• Previous Article
Existence problem for the Kirchhoff type wave equation with a localized weakly nonlinear dissipation in exterior domains
• DCDS Home
• This Issue
• Next Article
Null controllability of a cascade system of parabolic-hyperbolic equations
March 2004, 11(2&... | {} |
## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
Published by Pearson
# Chapter 3 - Introduction to Graphing - Mid-Chapter Review - Mixed Review - Page 202: 6
#### Answer
Refer to the graph below.
#### Work Step by Step
To graph the given equation, perform the following steps: (1) Cre... | {} |
# Loading...
### redox reaction iit jee questions pdf
Difluoroacetic acid will be the strongest acid because of the electron-withdrawing effect of two fluorine atoms so as it will show maximum electrical conductivity. So, this topic should be on your tips as this is the basic connect. | Students can easily download t... | {} |
If Jackson deposits $130 at the end of each month in a savings account earning interest at a rate of 6%/year compounded monthly, how much will he have on deposit in his savings account at the end of 7 years, assuming he makes no withdrawals during that pe # If Jackson deposits$130 at the end of each month in a savings ... | {} |
# Math Help - a tough integral
1. ## a tough integral
Hey guys.
I have this problem:
http://img12.imageshack.us/img12/6729/91881544.jpg
It's like a two parts problem.
The first one was to prove the equation in red, I did that with a bit of trigo.
The second part is to use the integral of the function in green to p... | {} |
# Oblique Projectile Motion
A particle of mass m is projected from the ground with an initial speed $$\beta$$ at an angle of $$\alpha$$ with the horizontal. At the highest point of trajectory, it makes a complete inelastic collision with another identical particle, which was thrown vertically upward from the ground wi... | {} |
# Discrepancy between RTL schematic and Behavioral simulation in Vivado
I'm having a strange issue with a simple Vivado (2015.3) VHDL simulation.
This code:
library ieee;
use ieee.std_logic_1164.all;
entity pulse is
port (
d : in std_logic;
clk : in std_logic;
q : out std_logic );
end pulse;
architecture Beh... | {} |
# Polyglossia and Verbatim problem
After having some hyphenation problems with my text (in greek and english) I changed some of my packages. In the beggining I was using:
\usepackage{mathspec}
\usepackage{xgreek}
\usepackage{xunicode}
\usepackage{fontspec}
\setallmainfonts[Mapping=tex-text]{Arial}
\setallsansfonts[... | {} |
# zbMATH — the first resource for mathematics
Topological spaces and lattices of lower semicontinuous functions. (English) Zbl 0238.54012
##### MSC:
54C30 Real-valued functions in general topology 54A05 Topological spaces and generalizations (closure spaces, etc.)
Full Text:
##### References:
[1] Frank W. Anderson ... | {} |
## Natural Numbers : Definition
How to use natural numbers? That is very easy. We’ve all learned how to use natural numbers in school. But it is hard to answer; “How to define natural numbers?”. And harder would be; “How to define the actions we do on natural numbers such as multiplication or addition?” Terrence Tao h... | {} |
# Difference between revisions of "Circles on circles"
This is an example of a parametric curve plot. The curve is described by the function
$[0,2\pi]\to{\matbf R}^2, \quad t\mapsto {\cos(t)\choose \sin(t)}$ | {} |
# Why does the & reset grouping?
In this answer, I used \tikzmark to mark the extent of a typeset piece of text, so I could draw changebars next to it. But it initially seemed that the changebars "disappear" with math-mode content. After some debugging, I whittled it down to the following MWE:
\documentclass{article}... | {} |
Hardcover | $42.00 Short | £28.95 | ISBN: 9780262017282 | 384 pp. | 6 x 9 in | 37 figures| April 2012 eBook |$15.00 Short | ISBN: 9780262302517 | 384 pp. | 37 figures| April 2012
About MIT Press eBooks
## The Cognitive Science of Science
Explanation, Discovery, and Conceptual Change
## Overview
Many disciplines, i... | {} |
# Right or left triangle?
## Recommended Posts
I am writing a triangle rasterizer and I can't seem to solve one problem: how do you tell if a triangle is a right or left triangle, given the three vertices? By right or left, I mean the direction that vectors from the top and bottom vertices to the middle vertex would ... | {} |
Comment
Share
Q)
# If $e$ and $e'$ be the eccentricities of a hyperbola and its conjugate then $\large\frac {1}{e^2}+\frac{1}{e^{12}}$ is equal to
$\begin{array}{1 1}(A)\;0 \\(B)\;1 \\(C)\;2 \\(D)\;none\;of\;these \end{array}$
Comment
A)
$\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1 b^2=a^2(e^2-1) (or) e^2=1+\large\fra... | {} |
# Arrangements and derangements
I’ve never thought of myself as particularly good at combinatorics or integer math in general. Most of my formal math study and the math I use in my professional life deals with the full continuity of real numbers, so that’s what I’m best at. But I do enjoy playing around outside my com... | {} |
• ## LaTeX Knowledgebase and guides
Posted by James on April 22, 2013This article was originally published on the ShareLaTeX blog and is reproduced here for archival purposes. LaTeX can be difficult to learn since there are lots of commands that you need to understand. We've made LaTeX really easy to get started with ... | {} |
# On the Simulation of Large Populations of Neurons
I recently found a 2000 paper titled “On the Simulation of Large Populations of Neurons” by A. Omurtag, B. W. Knight, and L. Sirovich. This paper shows two difference approaches to solving large populations of neurons. One can simulate their behavior computationally ... | {} |
# Is it possible to manipulate this series/generating function?
I have come across a generating function that is similar to another generating function.
First, some preliminaries. I call a closed form a function like $\frac{1}{1-x}$. In other words, a closed form does not involve a summation or integral, but rather a... | {} |
# 10: Production Function
The production function is the backbone of the Theory of the Firm. It describes the current state of technology and how input can be transformed into output.
The production function can be displayed in a variety of ways, including product curves and isoquants. In every optimization problem ... | {} |
# Determining direction of wave propagation from the phase?
1. Dec 16, 2009
### AxiomOfChoice
Suppose you know the phase of a wave is given by
$$\phi_1 = \vec k \cdot \vec r - \omega t.$$
How can you determine in which direction this wave is propagating? I guess, more specifically, how does a wave described by thi... | {} |
# How do you find enantiomeric excess?
Feb 14, 2016
You divide the observed specific rotation by the maximum specific rotation.
#### Explanation:
EXAMPLE
A compound X has a specific rotation of -20 °. A mixture with its enantiomer has a specific rotation of -10 °. What is the enantiomeric excess (ee) of X?
Soluti... | {} |
## Chemistry 10th Edition
(a) $AgNO_3$ is the limiting reactant. (b) 14.9 g of $BaCl_2$ will be left over. (c) 52.7 g of $AgCl$ will be produced.
(a) 1. Calculate the number of moles of $BaCl_2$: 137.3* 1 + 35.45* 2 = 208.2g/mol $53.1g \times \frac{1 mol}{ 208.2g} = 0.255mol (BaCl_2)$ According to the coefficients of ... | {} |
# Transoffset¶
This illustrates the use of transforms.offset_copy to make a transform that positions a drawing element such as a text string at a specified offset in screen coordinates (dots or inches) relative to a location given in any coordinates.
Every Artist (Text, Line2D, etc.) has a transform that can be set w... | {} |
# Naive questions on the classical equations of motion from the Chern-Simons Lagrangian
+ 3 like - 0 dislike
273 views
Consider a Chern-Simons Lagrangian $\mathscr{L}=\mathbf{e}^2-b^2+g\epsilon^{\mu \nu \lambda} a_\mu\partial _\nu a_\lambda$ in 2+1 dimensions, where the 'electromagnetic' fields are $e_i=\partial _0a_... | {} |
# Water
Written by Jerry Ratzlaff on . Posted in Density Conversion
Water, abbreviated as $$H_{2}O$$ or WTR, can exist in three of the four phases of matter, gas, liquid or solid. It is a odorless, tasteless and transparent liquid. | {} |
# PDE , n-variables
#### idontknow
(1) $$\displaystyle \dfrac{\partial Z}{\partial t_1 }+\dfrac{\partial Z}{\partial t_{1}^{2}} +\dotsc + \dfrac{\partial Z}{\partial t_{n}^{n}}=0$$.
(2) $$\displaystyle \partial_x f(x,y) = \partial_y f(x,y)$$.
(3) $$\displaystyle \dfrac{\partial^2 z(x,y)}{\partial x \partial y }=\df... | {} |
# My interest
Jump to: navigation, search
I am interested in knowing much about wikis and how to use it as I am learning a Web 2.0 course, I would like to learn more during this lesson. | {} |
# Updating half life
(The term “half-life” is also used in the context $y_x = y_0 \times b^x$ where $x$ denotes distance instead of time.) You can explore the concept of half-life by setting $b$ in the range
n Half-Life, players assume the role of the protagonist, Dr.
We want to calculate the time $t_2$ at which the... | {} |
• 论文 •
### 半线性椭圆问题Petrov-Galerkin逼近及亏量迭代
1. 1. 商丘师范学院数学系, 河南商丘 476000;
2. 郑州大学数学系, 郑州 450052
• 收稿日期:2013-11-15 出版日期:2014-08-15 发布日期:2014-09-28
• 基金资助:
国家自然科学基金（No.11071226）；河南省自然科学基金（No.132300410272）.
Si Hongying, Chen Shaochun. PETROV-GALERKIN APPROXIMATION OF THE SEMI-LINEAR ELLIPTIC AND THE DEFECT ITERATION[J]. ... | {} |
# UPSC Chemistry Classification of Elements and Periodicity in Properties Elements Classification and Chemical Bonding
Elements Classification and Chemical Bonding
Category : UPSC
ELEMENTS CLASSIFICATION AND CHEMICAL BONDING
CLASSIFICATION OF ELEMENTS
Four major attempts made for classification of the elements are... | {} |
# GMAT Question of the Day (February 20): Algebra and Critical Reasoning
- Feb 20, 02:00 AM Comments [0]
Math (PS)
How many real roots does this equation have?
$\sqrt{(x^2+1)} + \sqrt{(x^2+2)} = 2$
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
Question Discussion & Explanation
GMAT Daily Deals
• Veritas Prep has worked with ove... | {} |
Algebra
#### Concept Quizzes
If $x-y-5=0$, then the polynomial $3x^2+xy-y^2-25x-y+50$ can be simplified as $ay(y+b)$. What is $a+b$?
Given that \begin{aligned} & x = -a+b+c, \\ & y = a-b+c, \\ & z = a+b-c ,\\ & a^2+b^2+c^2 =20, \end{aligned} find the value of $x^2+y^2+z^2+xy+yz+zx$.
Suppose that $a$ is an integer s... | {} |
# LOG#082. Group Theory (II).
Basic definitions of group theory: that is the topic today! We need some background previous to the “group axioms”.
Definition (1). Set is a collection of objects with some properties. Objects in the set are called “elements” or “members” of the set.
Definition (2). Category is some col... | {} |
# How do you multiply 4xy^2(3x^2-5xy+6y^2)?
Nov 13, 2017
$12 {x}^{3} {y}^{2} - 20 {x}^{2} {y}^{3} + 24 {x}^{2} {y}^{4}$
#### Explanation:
First, we need to know that
${a}^{n} \cdot {a}^{m} = {a}^{n + m}$
For this question, we can simply expand the bracket.
$4 x {y}^{2} \left(3 {x}^{2} - 5 x y + 6 {y}^{2}\right)$
... | {} |
# What was the language used in Torah study by Jews in Israel in 16th century
Did the Jewish inhabitants of Safed and Jerusalem (contemporaries of Rav Yosef Karo and the Ari) speak Hebrew when they learned Torah or did they speak Arabic, Ladino or some other language?
I saw a reference (quoting Rav Ovadiah Yosef) whi... | {} |
# Ligand-protein binding
1. Sep 25, 2007
### Quickdry135
1. The problem statement, all variables and given/known data
A monovalent ligand binds to a protein with six in independent, identical binding sites. What is the probability that a given protein molecule is bound by at least five ligand molecules at equilibri... | {} |
PL EN
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## International Journal of Applied Mathematics and Computer Science
2012 | 22 | 1 | 99-107
Tytuł artykułu
### FDI(R) for satellites: How to deal with high availability and robustness in the space domain?
Autorzy
Treść / Zawartość
Warian... | {} |
$$\require{cancel}$$
# Distribution of Molecular Speeds
Learning Objectives
By the end of this section, you will be able to:
• Describe the distribution of molecular speeds in an ideal gas
• Find the average and most probable molecular speeds in an ideal gas
Particles in an ideal gas all travel at relatively high ... | {} |
Variations on a theme of O'Bryant, Cooper and Eichhorn concerning power series over $\mathbb Z/2\mathbb Z$ - MathOverflow most recent 30 from http://mathoverflow.net 2013-06-19T02:30:01Z http://mathoverflow.net/feeds/question/30501 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/... | {} |
# What is 0.8959595... as a fraction ?
Jan 9, 2017
$0.8 \overline{95} = \frac{887}{990}$
#### Explanation:
Given:
$0.8 \overline{95}$
First multiply by $10 \left(100 - 1\right) = 1000 - 10$ to get an integer. The first multiplier $10$ is to shift the repeating pattern to just after the decimal point. Then $\left(... | {} |
#### VT Markets APP
Trade CFDs on FX, Gold and more
# Daily market analysis
###### May 10, 2022
U.S. equities fell sharply on the first trading day of the week. The Dow Jones Industrial Average dropped 1.99% to close at 32245.7, the S&P 500 slid 3.2% to close at 3991.24, and the Nasdaq Composite tumbled 4.29% to cl... | {} |
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