text stringlengths 100 957k | meta stringclasses 1
value |
|---|---|
# 2 Assessing transaction exposure. Your employer, a large MNC, has asked you to assess its...
2 Assessing transaction exposure. Your employer, a large MNC, has asked you to assess its transaction exposure. Its projected cash flows are as follows for the next year:
Currency Total inflow Total outflow Value of cu... | {} |
# Localized sketching for matrix multiplication and ridge regression
We consider sketched approximate matrix multiplication and ridge regression in the novel setting of localized sketching, where at any given point, only part of the data matrix is available. This corresponds to a block diagonal structure on the sketch... | {} |
Residue of $z^2 e^{1/\sin z}$ at $z=\pi$
A while back I was working through many problems in Mathews and Walker's Mathematical Methods of Physics. In the appendix is this problem:
A-6. Find the residue of the function $z^2 e^{1/\sin z}$ at the isolated (essential) singularity $z=\pi$.
It is not too hard to get this ... | {} |
Fluid Model Checking
# Fluid Model Checking
Luca Bortolussi
Department of Mathematics and Geosciences
University of Trieste, Italy.
CNR/ISTI, Pisa, Italy.
luca@dmi.units.it
Jane Hillston
Laboratory for the Foundations of Computer Science,
School of Informatics, University of Edinburgh, UK.
jane.hillston@ed.ac.uk
####... | {} |
# Twisted¶
Warning
Since sys.exc_clear() has been dropped in Python 3, there is currently no way to avoid multiple tracebacks in your log files if using structlog together with Twisted on Python 3.
Note
structlog currently only supports the legacy – but still perfectly working – Twisted logging system found in twis... | {} |
Scripting
# Get emailed a portion of classic literature each day.
Ok, so I am feeling guilty over not reading enough GOOD books.
So, I devised a cunning plan whereby I am emailed a portion of a classic book each day. I started with the Iliad. I know that I’ll clear my emails every single day because a cluttered inbo... | {} |
# Error uncertainty for power law
1. Jan 17, 2014
### johnnnnyyy
So I have a series of 5 data points lets say that they are (1,1),(2,3),(3,4),(4,4.5),(5,4.75) that create a power function that has the equation y=1.2x^.97. Lets also say that the error uncertainty for every number is 0.1. I know that for a linear line... | {} |
×
# Help using LaTex
Can anyone give me the proper syntax of indenting expressions within fractions using \frac operator ?(with a short example, if possible) It's urgent......Really need it...
Note by Nishant Sharma
3 years, 4 months ago
Sort by:
The syntax for $$\frac{1}{2}$$ will be \frac{1}{2} · 3 years, 4 mont... | {} |
# Generation of sintered fault rock and its implications for earthquake energetics and fault healing
## Abstract
After an earthquake, faults can recover strength through fault healing, but the mechanisms responsible are not well understood. Seismic slip may induce sintering, a bonding process between solid particles ... | {} |
# Two springs and a mass
1. Apr 11, 2016
### Karol
1. The problem statement, all variables and given/known data
the two springs are identical and have the same constant k. they also have the same contracted length l0. a force of $k\cdot l_0$ has to be applied in order to start stretching the springs from length l0 a... | {} |
What is polarization by reflection and brewster�s law?
We know from Ray optics when a light is incident on the surface of transparent medium of refractive index (μ), some light gets reflected other gets refracted, from Snell’s law as we increase the incident angle the angle of refraction also increases and from law of... | {} |
# 调试利器：dump goroutine 的 stacktrace
Stack trace是指堆栈回溯信息，在当前时间，以当前方法的执行点开始，回溯调用它的方法的方法的执行点，然后继续回溯，这样就可以跟踪整个方法的调用,大家比较熟悉的是JDK所带的jstack工具，可以把Java的所有线程的stack trace都打印出来。
## 异常退出情况下输出stacktrace
### 通过panic
Go官方文档对这个环境变量有介绍
The GOTRACEBACK variable controls the amount of output generated when a Go program fails due to an... | {} |
Rate this symbol: (4.40 / 5 votes) The square root of a number is the value that you need to multiple by itself to get the number. Press the alt key and type 8730 using numeric keypad to make square root √ symbol. Mathematically, this is represented as: $latex \sqrt{16} = 4$ 3. Whether you are using Mac or the Windows ... | {} |
# Constraint (mathematics)
In mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. There are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. The set of candidate solutions that satisfy all constraints is called... | {} |
# 假设检验[4]--秩和检验
## 一、配对资料的符号秩和检验
### 非参数检验的适用条件:
1. 总体分布类型不明
2. 总体分布呈偏态分布
3. 数据一端或两端有不确定值的资料
4. 总体方差不齐
5. 有序分类变量资料
### 配对资料的符号秩和检验（Wilcoxon signedrank test, Wilcoxon符号秩和检验）
Wilcoxon符号秩和检验
1. 建立检验假设，确定检验水准
H0: 差值的总体中位数等于0 H1: 差值的总体中位数不等于0 α =0.05
2. 计算检验统计量T值
3. 求差值d
4. 编秩:依差值的绝对值由小到大编秩 ; 差值为0，不编秩，且总的对子数相应减少;... | {} |
# I want to know why $\omega \neq \omega+1$.
In Kunen's book, Set Theory,chapter I.7, he said: $1+\omega=\omega \neq \omega+1$. I want to know why $\omega \neq \omega+1$.
-
What have you tried? Did you write out the definitions? Note that $\omega+1$ has a ... element. – t.b. Jan 12 '12 at 8:23
As an ordered set, $\o... | {} |
# My boss re-wrote my PHP/Yii controller code. Which is better?
I was recently asked to write a Question-and-Answer feature for my company's product pages using Yii 1. It was my first Yii project, and it was a little rough around the edges (Code A). However, when I submitted my code, my boss re-wrote my two actions to... | {} |
# Angular velocity
181pages on
this wiki
For an object rotating about an axis, every point on the object has the same angular velocity. The tangential velocity of any point is proportional to its distance from the axis of rotation. Angular velocity has the units rad/s.
v = ωr
$\omega = \frac{v}{r}$
Angular velocity... | {} |
# All Questions
7,713 questions
866 views
I recently saw this answer to a question in the integration tag. The answer has clearly been copied from this link, the infamous online integral calculator. There was nothing added to the answer, or ...
530 views
### Answer not deleted after six “Recommend Deletion”
Update:... | {} |
# Homework Help: Part 2 of the Fundamental Theorem of Calculus
1. Sep 6, 2006
### BlackMamba
Hello,
I have a problem that I am getting stuck simplifying further.
The problem asks me to find the integral if it exists using Part 2 of the FTC.
I know that the second part of the FTC says:$\int_{a}^{b} f(x)dx = F(b) -... | {} |
# Chapter 3: Exercises
### Short Answer Questions, Exercises, and Problems
➢ Define process costing and describe the types of companies that use process costing.
➢ How does a process cost system differ from a job costing system?
➢ Would a lumber mill use process or job costing?➢ What is meant by the term equivalent u... | {} |
# 1/sin x.cos^2x - Doubtnut.app
Fråga Lund om matematik - Matematikcentrum
M0050M (b) Bestäm sin2x och cos2x givet att tanx = 2. (3 p). 12. ିଶ௫ିଷ with aid from asymptotes and its first derivative, as well as att homogenlösningen är y = e ି௫ ∙ ( C ଵ ∙ cos(2x) + C ଶ Cos(2x)=. 2*cos^2(x)-1= 1-2*sin^2(x). Formeln: par... | {} |
Counts of maps to Grassmannians and intersections on the moduli space of bundles.(English)Zbl 1126.14044
Let $$\mathcal{N}$$ denote the moduli space of stable bundles of a fixed determinant on a projective curve $$C$$, where the rank $$r$$ and degree $$d$$ are assumed to be coprime.
The authors present a simple and en... | {} |
# QB/d cp2.10
< QB
• Quizbank now resides on MyOpenMath at https://www.myopenmath.com (although I hope Wikiversity can play an important role in helping students and teachers use these questions!)
• At the moment, most of the physics questions have already been transferred. To see them, join myopenmath.com as a stude... | {} |
Standard Integrals
Where appropriate $a$, $b$, $C$ and $n$ are constants. Note that $a\ne 0$. Also $u$ and $v$ are integrable functions of $x$.
Basic Rules
$$\int{dx}=x+C$$
$$\int{\left(ax+b\right)^n\:dx}=\frac{\left(ax+b\right)^{n+1}}{a(n+1)}+C\quad n\ne -1$$
$$\int{au+bv\:dx}=a\int{u\:dx}+b\int{v\:dx}$$
Expone... | {} |
Metamath Proof Explorer < Previous Next > Nearby theorems Mirrors > Home > MPE Home > Th. List > df-rdg Unicode version
Definition df-rdg 7095
Description: Define a recursive definition generator on (the class of ordinal numbers) with characteristic function and initial value . This combines functions in tf... | {} |
Show Summary Details
Page of
date: 16 December 2019
# Poverty and Social Policy in the United States
## Summary and Keywords
The interaction between poverty and social policy is an issue of longstanding interest in academic and policy circles. There are active debates on how to measure poverty, including where to ... | {} |
location: Publications → journals
Search results
Search: All articles in the CJM digital archive with keyword symmetries
Expand all Collapse all Results 1 - 3 of 3
1. CJM Online first
Santoprete, Manuele; Scheurle, Jürgen; Walcher, Sebastian
Motion in a Symmetric Potential on the Hyperbolic Plane We study... | {} |
Jolt3D!
Website:
http://jolt-3d.sourceforg...
Developer:
Launched:
Not specified
Status:
Active
Supported Platforms:
Windows
Languages Written In:
C/C++
Languages Supported:
C/C++
Graphics APIs:
DirectX
Rating:
(11 reviews)
Editor:
None (be one!)
The Jolt3D! Engine is a real-time 3D game engine. The engine h... | {} |
E. Modular Stability
time limit per test
2 seconds
memory limit per test
512 megabytes
input
standard input
output
standard output
We define $x \bmod y$ as the remainder of division of $x$ by $y$ ($\%$ operator in C++ or Java, mod operator in Pascal).
Let's call an array of positive integers $[a_1, a_2, \dots, a_k]$ ... | {} |
# Reduce integration over crystal to integration over unit cell
I am wondering when I can reduce integrals over a periodic crystal to a an integral over the unit cell. Especially I consider the following two-electron integral $$I=\langle \varphi_i \varphi_j | V | \varphi_a \varphi_b \rangle = \int \text d^3 r_1 \int \... | {} |
## Optimal Security Response to Attacks on Open Science Grids
Cybersecurity is a growing concern, especially in open grids, where attack propagation is easy because of prevalent collaborations among thousands of users and hundreds of institutions. The collaboration rules that typically govern large science experiments... | {} |
# Han Zero
To be accompanied with the music video "Han Zero (lofi)"
...
“Han!” she yelled.
“What?” He replied in a tired tone.
“We’re moving.” She said, pointing out the window.
Han sat up rubbing his eyes. He got out of the bed and moved over to where Agatha was standing. Peering out the window he could see the ... | {} |
# Tag Info
30
45 degree angle for a projectile gives you the maximum distance in a vacuum, but air resistance, as pointed out, changes that a little. With air resistance slowing the ball, you need to to throw a tick under 45 degrees for maximum distance. Also Also, since you throw from above the shoulder, not from th... | {} |
# pi/π : Java Glossary
pi/π
An irrational number approximately 3.141592654, the ratio of the circumference of a circle to its diameter. It is approximated in Java with the double Math.PI.
The circumference of a circle is 2πr where r is the radius.
The area of a circle is πr² where r is the radius.
A complete circle... | {} |
HEAD 2000, November 2000
Session 32. Supernova Remnants/ISM
Display, Thursday, November 9, 2000, 8:00am-6:00pm, Bora Bora Ballroom
## [32.20] Search for TeV Gamma Rays from Supernova Remnants Cas A and Tycho with the HEGRA Stereoscopic System of Atmospheric Cherenkov Telescopes
F.A. Aharonian, H. Krawczynski, G. Pueh... | {} |
### Preprints submitted for publication
#### Sieving intervals and Siegel zeros
Assuming that there exist (infinitely many) Siegel zeros, we show that the (Rosser-)Jurkat-Richert bounds in the linear sieve cannot be improved, and similarly look at Iwaniec's lower bound on Jacobsthal's problem, as well as minor improv... | {} |
## Algebra and Trigonometry 10th Edition
Note: Sine and Cosine functions are related by a phase shift of $\frac{\pi}{2}$ Using the note above: sin($\frac{\pi}{2} - x)$ = cos(x) | {} |
Caboxylic Acid – JEE Advanced Previous Year Questions with Solutions
JEE Advanced Previous Year Questions of Chemistry with Solutions are available at eSaral. Practicing JEE Advanced Previous Year Papers Questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing w... | {} |
# Color Settings¶
Starting with version 0.45, we added new global configuration parameters that allows users to customize the client's background colors.
1. top-pane
2. output-pane
3. input-pane
4. bottom-pane
5. log-pane
6. terminal-primary
## Changing the panel colors¶
To make changes to the panel colors, run con... | {} |
# Time Crystals Protected by Floquet Dynamical Symmetry in Hubbard Models.
@article{Chinzei2020TimeCP,
title={Time Crystals Protected by Floquet Dynamical Symmetry in Hubbard Models.},
author={Koki Chinzei and Tatsuhiko N. Ikeda},
journal={Physical review letters},
year={2020},
volume={125 6},
pages={
060601
}
}
• Pub... | {} |
# American Institute of Mathematical Sciences
November 2017, 37(11): 5843-5859. doi: 10.3934/dcds.2017254
## Estimating the fractal dimension of sets determined by nonergodic parameters
University of California Irvine, Department of Mathematics, 440V Rowland Hall, Irvine, CA 92697-3875, USA
Received September 20... | {} |
# End of Evolution
To a physicist, life is a neat example of electromagnetic interaction. To a biologist, however, life is a DNA replication algorithm. Let’s mull over the biology view for a few moments.
The genes in our body have only one motive–to get replicated. Our body is created in accordance with a blue print ... | {} |
## Fundamentals of Physics Extended (10th Edition)
Published by Wiley
# Chapter 2 - Motion Along a Straight Line - Problems - Page 33: 22c
#### Answer
$t= 1s$
#### Work Step by Step
Given that $x=3t^2-2t^3$, we take the derivative to find: $v=\frac{dx}{dt}=6t-6t^2$ For maximum positive $x$ position, $v$ will be z... | {} |
## Binomial coefficients
Today I’m going to talk about something pretty nifty called binomial coefficients. It may not be immediately apparent to you why they’re so nifty, but take my word for it: they show up all over the place in mathematics! [And yes, if you're wondering, we're still on our way towards a formula fo... | {} |
Showing all 14 results
Sale!
19.90\$
Free Shipping
Aircraft collector’s model, The Aircraft model was produced In the usual Maisto high-quality and reflects back the original as possible.
Sale!
34.90\$
Free Shipping
Motorcycle collector’s model, The model was produced In the usual Maisto high-quality and reflec... | {} |
## Precalculus (6th Edition)
$\color{blue}{12}$
RECALL: (1) For $a\gt0$ and $b\gt0$, $\sqrt{a} \cdot \sqrt{b} = \sqrt{ab}$ (2) For $a\ge0$, $\sqrt{a^2} = a$ Use rule (1) above to obtain: $\sqrt{6} \cdot \sqrt{24} \\=\sqrt{6\cdot24} \\=\sqrt{144} \\=\sqrt{12^2}$ Use rule (2) above to obtain: $=\color{blue}{12}$ | {} |
A- A+
Alt. Display
# Atmospheric Energy Spectra in Global Kilometre-Scale Models
## Abstract
Eleven 40-day long integrations of five different global models with horizontal resolutions of less than 9 km are compared in terms of their global energy spectra. The method of normal-mode function decomposition is used to ... | {} |
💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!
# Is the line through $(-4, -6, 1)$ and $(-2, 0, -3)$ parallel to the line through $(10, 18, 4)$ and $(5, 3, 14)$?
## Yes.
Vectors
### Discussion
You must be signed in to discuss.
##### Lily A.
Johns H... | {} |
# Spell check of shares
Spellweb is your one-stop resource for definitions, synonyms and correct spelling for English words, such as shares. On this page you can see how to spell shares. Also, for some words, you can find their definitions, list of synonyms, as well as list of common misspellings.
### Examples of usa... | {} |
# Seating couples around 2 tables
Here's my question and possible answer.
How many possible ways can you arrange 8 married couples between 2 circular tables of 8 identical chairs each such that:
1) each couple must sit at the same table, and,
2) at each table, men and women must sit in adjacent chairs (NOTE: a coup... | {} |
# Area of an ellipse.
I need to find the area of the image of a circle centred at the origin with radius 3 under the transformation:
$\begin{pmatrix} 3 & 0\\ 0 & \frac{1}{3} \end{pmatrix}$
The image is the ellipse $\frac{x^2}{81}+y^2=1$. It would appear that it has the same area as the original circle i.e. $9\pi$. I... | {} |
# Expectation of non-negative random variables
## Discrete case
Let's take a look at the expectation of non-negative random variables. What follows is a formula whose proof almost doesn't need words. If $T$ is a non-negative discrete random variable with finite expectation, then \begin{equation*} \definecolor{dark2gr... | {} |
Decimals Worksheets | Decimals Multiplication and Division | MME
# Decimals – Addition, Subtraction, Division and Multiplication Worksheets, Questions and Revision
Level 1-5
## Decimals
A decimal is any number with a decimal point. They are the numbers that fall between the integers.
Make sure you are happy with t... | {} |
# zbMATH — the first resource for mathematics
Determining conductivity by boundary measurements. II: Interior results. (English) Zbl 0595.35092
[For Part I, see ibid. 37, 289-297 (1984; Zbl 0576.35116).]
Let $$\Omega$$ be a bounded domain in $${\mathbb{R}}^ n$$ $$n\geq 2$$, with boundary $$\Gamma$$. For any $$\gamma \... | {} |
Convex Polygons
Erdös-Szekeres conjecture ★★★
Author(s): Erdos; Szekeres
\begin{conjecture} Every set of $2^{n-2} + 1$ points in the plane in general position contains a subset of $n$ points which form a convex $n$-gon. \end{conjecture}
Convex 'Fair' Partitions Of Convex Polygons ★★
Author(s): Nandakumar; Ramana
... | {} |
Growth of groups versus Schreier graphs - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-19T19:37:43Z http://mathoverflow.net/feeds/question/81321 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/81321/growth-of-groups-versus-schreier-graphs Growth of groups vers... | {} |
Feeds:
Posts
## October 6, 2012 – Dr. Branislav Kisačanin – “First Encounter with Calculus”
Last year one of our most popular sets of lectures were on Calculus. Take this opportunity to hear, Dr. Branislav Kisačanin, introduce even our younger students to this beautiful topic. Here is a description of the talk in h... | {} |
# Revision history [back]
If you let g be a tuple of expressions involving t you can use the Python * operator to use the tuple entries as your inputs x, y, and z:
sage: g = (t, t^2, t^3)
sage: f = lambda x,y,z: (2*x, y+x+z, y*x)
sage: f(*g)
(2*t, t^3 + t^2 + t, t^3)
If you want to define both g and f as lambda fun... | {} |
# The 'time oriented coarse graining' hypothesis -- "Rovelli"
#### marcus
Gold Member
Dearly Missed
The difficulty I have in understanding and interpreting this is that everything which is contemporary to "us" and comparable in scale to "us" seems to have the same basic coupling to the rest of the world. that goes fo... | {} |
Tex4ht: Non-existent graphic files in the html-output
Having run htlatex on a LaTeX file (without any configuration files), I've got a lot of references to non-existent graphic files in the html-output. Usually these non-existent graphic files come in pairs, e.g.
< img src="sample23x.png" alt="PICT" >
< img src="sam... | {} |
# Joint distribution
What is the difference between E(X|Y) and E(E(X|Y))?
For example, in the following table, what is the value if E(X|Y) and the value of E(E(X|Y)). Also, if we have a function h(Y)=Y^3, how can we prove that E(Xh(Y)|Y)=h(Y)E(X|Y)?
Y=0 Y=1
X=0 0.1 0.2
X=1 ... | {} |
# Algebra Functorial Construction¶
AUTHORS:
• Nicolas M. Thiery (2010): initial revision
class sage.categories.algebra_functor.AlgebraFunctor(base_ring)
A singleton class for the algebra functor
base_ring()
Returns the base ring for this functor
EXAMPLES:
sage: from sage.categories.algebra_functor import Algebra... | {} |
# Math Help - Ring theory
1. ## Ring theory
I have a little confusion regarding the following fact :
In a ring R if ab = ac then why can't we conclude that b = c ?
Help will be appreciated.
2. ## Re: Ring theory
I don't believe that every element in a ring is required to have a multiplicative inverse. Therefore, ... | {} |
MathOverflow will be down for maintenance for approximately 3 hours, starting Monday evening (06/24/2013) at approximately 9:00 PM Eastern time (UTC-4).
2 added 92 characters in body
Another tact; consider the set of foldings of our convex shape. Since the fold axis partitions the perimeter into two parts, and by con... | {} |
# Multi-Wire Branch Circuit
November 19, 2021—Learn with me
I’m having an electrical sub panel installed in my garage. I’ve always wanted more lights and outlets than the current circuits can handle. And plus I’m beginning to need 240V for power tools.
As I plan ahead I’m having to learn about all the different outl... | {} |
## A collection of numbers T is de?ned recursively. Which of the following belongs to T?
A collection of numbers T is de?ned recursively by: 2 belongs to T AND If X belongs to T, so does X+3 and 2*X Which of the following belongs to T? A. 6 B. 7. C. 12 Show all work. | {} |
# Stanley-Reisner ring
(Redirected from Stanley–Reisner ring)
2010 Mathematics Subject Classification: Primary: 13F55 Secondary: 05E45 [MSN][ZBL]
Stanley–Reisner face ring, face ring
The Stanley–Reisner ring of a simplicial complex $\Delta$ over a field $k$ is the quotient ring $$k[\Delta] = k[x_1,\ldots,x_n]/I_\De... | {} |
## General Expression For a Multlinear Function
Let
$V$
be a vector space over a field
$F$
, let
$r$
be a positive integer.and let
$L$
be a multilinear function (linear in each argument)
$L:V^r \rightarrow F$
.
Let
$A= \left( \begin{array}{cccc} a_{11} & a_{12}& \ldots & a_{1n}\\ \vdots & \vdots & \ddots & \vdots \\ a... | {} |
# Fantastic Ratios
Level pending
Let $$ABCD$$ be a square and $$N$$ a point on segment $$CD$$ such that $$AD = 3 ND$$. Let $$M$$ be a point on segment $$BC$$ satisfying $$\angle MAN = 45^\circ$$. The ratio $$\frac{AM}{AN}$$ can be expressed as $$\frac{a\sqrt{b}}{c}$$, where $$a, b,$$ and $$c$$ are positive integers, ... | {} |
# Ruby Repository Pattern
I am trying to teach myself about repository pattern in ruby. Could you please review my code.
module Adapter
class Main
def prebuild(obj)
self.set_table_name = obj.table_name.to_s
variables = obj.instance_variables
@values = []
@keys = []
variables.reject! { |c| c.to_s == '@table_name' }.m... | {} |
# 11.1. Installing GeoMesa Cassandra¶
## 11.1.1. Connecting to Cassandra¶
The first step to getting started with Cassandra and GeoMesa is to install Cassandra itself. You can find good directions for downloading and installing Cassandra online. For example, see Cassandra’s official getting started documentation.
Onc... | {} |
Sales Toll Free No: 1-855-666-7446
# Standard Deviation Calculator
Top
Standard deviation estimates the distribution of a data set from its average. Standard deviation is calculated by taking the square root of the variance i.e., $\sigma ^{2}$. Plug in the set of numbers into the standard deviation calculator to get ... | {} |
### The Case for Dwarf K Stars
61 Cygni, a binary K-type star system - via commons
The stellar main-sequence is a strip that cuts diagonally the Hertzsprung-Russell diagram, a star's plot of stellar color versus brightness. The main feature of main-sequence stars is that they burn hydrogen. In this group the K dwarfs,... | {} |
# Winding architecture
## 1. Preamble
General information: In the software winding datasheet, the parameters written in blue correspond to user input parameters and the parameters written in black correspond to data resulting from computations.
## 2. Terminology – Illustration
Slot composition 1 Wire (also called ... | {} |
# zbMATH — the first resource for mathematics
Irreducible restriction and zeros of characters. (English) Zbl 0967.20006
It is a long known fact (by Burnside, around 1900) that an irreducible complex character $$\chi$$ of a finite group $$G$$ admits some element $$g\in G$$ satisfying $$\chi(g)=0$$ if and only if $$\chi... | {} |
Negative Sampling
Introduced by Sun et al. in RotatE: Knowledge Graph Embedding by Relational Rotation in Complex Space
Self-Adversarial Negative Sampling is a negative sampling technique used for methods like word embeddings and knowledge graph embeddings. The traditional negative sampling loss from word2vec for opt... | {} |
Toy implementation of nested cross-validation: how to determine number of inner and outer folds and how many iterations to run?
I am reading Cawley and Talbot and saw a post on implementation of nested CV (NCV) as well as numerous posts with good answers on the topic (general NCV, training with full dataset after NCV,... | {} |
# Real Numbers – Definitions of Terms
Absolute Value: The distance a number is from 0. If x is a positive real number, then its absolute value, |x|, is x. For example, if x is 3, then |x| = |3| = 3. If x is a negative real number, then |x| = -x. For example, if x is -3, then |x| = |-3| = -(-3) = 3. Notice that both 3 ... | {} |
## Wu, Yongfeng
Compute Distance To:
Author ID: wu.yongfeng Published as: Wu, Yongfeng; Wu, Yong-Feng
Documents Indexed: 91 Publications since 1986 Co-Authors: 27 Co-Authors with 45 Joint Publications 643 Co-Co-Authors
all top 5
### Co-Authors
16 single-authored 8 Volodin, Andrei I. 6 Song, Mingzhu 6 Zhu, Dongjin... | {} |
# Will a salt dissociate completely in water to give free ions?
I was reading salt hydrolysis of a salt made from strong acid and weak base. I came across the hydrolysis of $$\ce{NH_4Cl}$$. These reactions were mentioned
$$\ce{NH_4Cl + H_2O<=>NH_3 + HCl \tag{R1}}$$ $$\ce{NH_4+ + Cl- + H_2O<=>NH3 + H+ + Cl-}\tag{R2}$$... | {} |
# Geometrically explaining $i^2 = -1$
My textbook, A first course in Abstract Algebra by Fraleigh, 7th edition, (pg14) is attempting to explain complex number multiplication geometrically.
The math example walks through multiplying $$z_1 = \vert z_1 \vert e^{i\theta_1}$$and $$z_2 = \vert z_2 \vert e^{i\theta_2}$$ int... | {} |
# The renormalized Bogoliubov–Fröhlich Hamiltonian
@article{Lampart2020TheRB,
title={The renormalized Bogoliubov–Fr{\"o}hlich Hamiltonian},
author={Jonas Lampart},
journal={Journal of Mathematical Physics},
year={2020}
}
• J. Lampart
• Published 5 September 2019
• Physics
• Journal of Mathematical Physics
The Bogoliub... | {} |
 What is an adsorption isotherm and isobar? from Chemistry Surface Chemistry Class 12 Nagaland Board
### Book Store
Currently only available for.
CBSE Gujarat Board Haryana Board
### Previous Year Papers
Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only ava... | {} |
# Re: Fw: Numbers
Russell Standish wrote:
> On Fri, Mar 24, 2006 at 07:20:20AM -0800, 1Z wrote:
> >
> >
> > Russell Standish wrote:
> > > This is the way I put the argument in my upcoming book. You can also
> > > read the Universal Dovetailer Argument in Bruno Marchal's SANE04
> > > paper.
> > >
> > > \item That a de... | {} |
Overview Statistic: PDF-Downloads (blue) and Frontdoor-Views (gray)
## Decomposing Matrices into Blocks
Please always quote using this URN: urn:nbn:de:0297-zib-2849
• In this paper we investigate whether matrices arising from linear or integer programming problems can be decomposed into so-called {\em bordered block ... | {} |
## Geometry: Common Core (15th Edition)
Published by Prentice Hall
# Chapter 7 - Similarity - 7-1 Ratios and Proportions - Lesson Check - Page 436: 4
#### Answer
a. $\frac{a}{13}$ = $\frac{7}{b}$ b. $\frac{a-7}{7}$ = $\frac{13-b}{b}$ c. $\frac{7}{a}$ = $\frac{b}{13}$
#### Work Step by Step
We are given the propor... | {} |
Algebra 1
First lets multiply 25 with 50 so that we get the distance Tamara swims in meters. 25 $\times$ 50 = 1250 meters Now, since there are 1000 meters in 1 kilimeters, lets divide Tamara's distance by 1,000 in order to get her distance in kilometers. $\frac{1250}{1000}$ = 1.25 kilometers So Tamara swims 1.25 kilom... | {} |
# Question #2b845
Apr 25, 2017
Ionization energy is the energy required to remove one electron from an atom in its gaseous state.
In general, ionization energy increases across a period on the periodic table since atomic radius decreases across the period. The electrons are closer to the nucleus, and it becomes hard... | {} |
Image processing approaches to enhance perivascular space visibility and quantification using MRI
Abstract
Imaging the perivascular spaces (PVS), also known as Virchow-Robin space, has significant clinical value, but there remains a need for neuroimaging techniques to improve mapping and quantification of the PVS. Cu... | {} |
Address Bus 141, Coleman, WI 54112 (920) 591-1933
# error running pdflatex Oconto, Wisconsin
Following your suggestions I wrote something in the terminal like Ipe bundle in Ipe.app/Contents/MacOS/ipe. On 04/02/2013 14:27, Jonathon Love wrote: > On 04/02/13 23:47, Duncan Murdoch wrote: > > Probably, but if you want he... | {} |
• 研究论文 •
### 日龄和交配状态对二化螟雄蛾内生殖器特征的影响
1. (1. 浙江大学农药与环境毒理研究所, 杭州 310058; 2. 黑龙江省植检植保站, 哈尔滨 150090; 3. 温州医科大学健康与环境生态研究所, 浙江温州 325035; 4. 四川省农业科学院植物保护研究所, 农业部西南作物有害生物综合治理重点实验室, 成都 610066)
• 出版日期:2019-07-20 发布日期:2019-07-09
### Effects of age and mating status on the characteristics of internal genital organs of male adult... | {} |
Browse Questions
# 1.11 g of the chloride of a metal dissolved in water were treated with an excess of silver nitrate solution. The weight of the precipitated silver chloride after washing and drying was found to be 2.87 g. Calculate the equivalent weight of the metal.
$X+35.5=\large\frac{1.11\times 143.5}{2.87}$$=55... | {} |
## Introduction
In the Intermediate Guide to R, we covered some basic techniques for preprocessing data from experiments, see the preprocessing data from experiments and the more processing worksheets. In this worksheet, we’ll cover some additional techniques for preprocessing experimental data.
## Getting started
T... | {} |
# indefinite integral
### indefinite integral
Hello. Can you tell me how to solve this integral?
$$\int \frac{ (\sin{3x}) ^{4} }{ \sqrt[3]{(\cos{x}) ^{2} } } \cdot dx$$
bedje
Posts: 1
Joined: Mon Jun 01, 2020 12:55 am
Reputation: 0
### Re: indefinite integral
My first thought would be to convert that "sin(3x)" to ... | {} |
# Pfaffian systems that do not satisfy their integrability conditions
Remark: In this question I am first and foremost interested in a local problem and local solutions therefore I assume all functions are defined on open sets of real coordinate spaces and I will not bother with explictly considering domains. To simpl... | {} |
# Equality of topologies on the space of positive Radon measures
Let $$X$$ be a locally compact Hausdorff space, $$C_0(X)$$ the Banach space of continuous functions vanishing at infinity, $$M(X) := C_0(X)'$$ the space of Radon measures and $$M^+(X) \subseteq M(X)$$ the positive finite Radon measures. On $$M(X)$$, deno... | {} |
# Tentative Rules for Developers¶
## Short-version¶
1. First analyze the problem, then design the code (data and algorithm structures), prepare test suite. Last, write the code.
2. Make everything as simple as possible.
## Long-version¶
1. First of all, please write explicitly what you would like to implement in do... | {} |
+0
Math
0
131
1
Eric and Emmet were playing a math game. Eric had 2 points for every 1 points Emmet had. When Emmet scored 30 more points, he then had twice as many points as Eric. How many points did Eric have?
Apr 22, 2021
#1
+570
0
lets say emmet has e points. this means Eric has 2e points.
2e$\cdot$2=e+30
3... | {} |
# Five EmbedDev
An Embedded RISC-V Blog
The RISC-V Instruction Set Manual, Volume II: Privileged Architecture
# 3 Machine-Level ISA, Version 1.12
This chapter describes the machine-level operations available in machine-mode (M-mode), which is the highest privilege mode in a RISC-V system. M-mode is used for low-leve... | {} |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.