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# 每日一题[1430]对勾换元
A．$\left[2,1+\dfrac{3\sqrt 2}2\right]$
B．$\left[1,1+\dfrac{3\sqrt 2}2\right]$
C．$\left[2,\dfrac{3\sqrt 2}2\right]$
D．$\left[1,\dfrac{3\sqrt 2}2\right]$ | {} |
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## G = C2×C23.12D6order 192 = 26·3
### Direct product of C2 and C23.12D6
Series: Derived Chief Lower central Upper central
Derived series C1 — C2×C6 — C2×C23.12D6
Chief series C1 — C3 — C6 — C2×C6 — C2×Dic3 — C22×Dic3 — C2×C4×Dic3 — C2×C23.12D6
Lower central C3 — C2×C6 — C2×C23.12D6
Upper ce... | {} |
# Integral of v/(-2v+1+v^2)
## \int\frac{v}{v^2-2v+1}dx
Go!
1
2
3
4
5
6
7
8
9
0
x
y
(◻)
◻/◻
2
e
π
ln
log
lim
d/dx
d/dx
>
<
>=
<=
sin
cos
tan
cot
sec
csc
asin
acos
atan
acot
asec
acsc
sinh
cosh
tanh
coth
sech
csch
asinh
acosh
atanh
acoth
asech
acsch
$\frac{v\cdot x}{\left(v-1\right)^{2}}+C_0$
## Step by step sol... | {} |
## Semiprimitivity of k[G] for finite groups G
Posted: January 9, 2011 in Group Algebras, Noncommutative Ring Theory Notes
Tags: , , ,
Theorem (Maschke, 1899) Let $k$ be a field and let $G$ be a finite group of order $n.$ Let $R:=k[G].$ Then $R$ is semiprimitive if and only if $char(k) \nmid n.$
Proof. Let $G = \{g_... | {} |
# Free group and commutator question from Artin's book
Let $F$ be the free group on $x$, $y$ and $R$ be the smallest normal subgroup containing the commutator $xyx^{-1}y^{-1}$.
a) Show that $x^2y^2x^{-2}y^{-2}$ is in $R$.
b) Prove that $R$ is the commutator subgroup of $F$.
I tried to conjugate $xyx^{-1}y^{-1}$ wit... | {} |
# Why it can't have 4 real roots ?!!
Algebra Level 3
$(a-1)(x^{2}+x+1)^{2}-(a+1)(x^{4}+x^{2}+1)=0$ Provided that two roots of the above equation are real and distinct for $$a \in \mathbb{R}-A$$. then find the set $$A$$.
×
Problem Loading...
Note Loading...
Set Loading... | {} |
### CloudMagic
I will review another non strictly related to research app.
Though sometime I think that apps like CloudMagic do a lot more to researchers than other apps, say origin lab and so on.
Most old fashioned researchers rely on paper, they print pdf they annotate them they use post it and so on. To my view i... | {} |
# perturbated core curve
the core curve of the mobius strip perturbated by $0.1\cos(11\ t)$
But if we use $0.4\cos(12.5t)\sin(3t)\cos(t)$ | {} |
Documentation
### This is machine translation
Translated by
Mouseover text to see original. Click the button below to return to the English version of the page.
# ppval
Evaluate piecewise polynomial
## Syntax
``v = ppval(pp,xq)``
## Description
example
````v = ppval(pp,xq)` evaluates the piecewise polynomial `... | {} |
## a. 2.49 \times 10^{-11} \mathrm{m}b. 0.29 \mathrm{nm}
Quantum Physics
Atomic Physics
### Discussion
You must be signed in to discuss.
##### Christina K.
Rutgers, The State University of New Jersey
##### Marshall S.
University of Washington
### Video Transcript
okay with this problem, we have an X ray to wit... | {} |
HP Deskjet Ink Advantage 2135 Printer Driver. This HP printer itself is particularly first-class. Sadly I was once no longer capable to print from my new Chromebook. I had no notion i couldn't print from a chromebook to a non-wireless printer! I am bummed considering the fact that I used to be really looking ahead to h... | {} |
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
I’ve been banging my head against the wall trying to figure out an easy way to wrap utilization distribution estimation and visualization into easier to use functions. Mostly for my benefit in developing a Shiny application ... | {} |
## JenniferSmart1 Group Title Why is kx=25N instead of -kx=25N? one year ago one year ago
1. JenniferSmart1 Group Title
2. JenniferSmart1 Group Title
@Outkast3r09
3. JenniferSmart1 Group Title
shouldn't F=-kx?
4. JenniferSmart1 Group Title
@CliffSedge ?
5. Outkast3r09 Group Title
Ahh this my physics teacher we... | {} |
# zbMATH — the first resource for mathematics
## Brown, Michael R.
Compute Distance To:
Author ID: brown.michael-r Published as: Brown, M.; Brown, M. R.; Brown, Michael; Brown, Michael R.
Documents Indexed: 32 Publications since 1970, including 2 Books
#### Co-Authors
0 single-authored 1 Bell, Andrew M. 1 Fraser... | {} |
# A jet plane of wing span 20 m is travelling towards west at a speed of 400 ms-1. If the earth’s total magnetic field is 4×10-4 T and dip angle is 30 degrees, at that place, what is the voltage difference developed across the ends of the wing ?
pooja s patil
24 Points
4 years ago
Given: B= 4 x 10-4 T
l = 20 m
v = 40... | {} |
# Hyperbolic triangles with no nonconstant Neumann eigenfunctions
-
Chris Judge , Indiana University
Fine Hall 314
The Neumann Laplacian acts on a dense subspace of square-integrable functions on a Riemannian manifold. If the manifold is compact then the spectrum is a countable discrete subset of the nonnegative real... | {} |
VectorAngle - Maple Help
LinearAlgebra
VectorAngle
compute the angle between two Vectors
Calling Sequence VectorAngle(U, V, c)
Parameters
U, V - Vectors with the same dimension c - (optional) equation of the form conjugate=true or false; specifies if the result uses the Hermitian transpose
Description
• The... | {} |
Lagrangian term
• I
Hello! I have a classical Lagrangian of the form $$L=A\dot{x_1}^2+B\dot{x_2}^2+C\dot{x_1}\dot{x_2}cos(x_1-x_2)- V$$ the potential is irrelevant for the question and A, B and C are constants. When doing $$\frac{d}{dt}\frac{\partial L}{\partial \dot{x_1}}$$ the solution gives this: $$2A\ddot{x_1}+C\d... | {} |
What are some equivalents of a BF199 transistor?
The schematic uses a BF199 transistor which is marked "obsolete" by some component suppliers. What would be a current and widely available equivalent?
I tried to search at my preferred shop, https://www.rs-online.com using the following properties:
• Si NPN RF Transis... | {} |
Time Complexity: Big-O
What is the time complexity of this loop?
k=1
for(j=0;j<=n;j+=k)
k++;
Is it $$O(n)$$ as we are increasing $$j$$ linearly?
• Hint: j is actually the Gaussian sum. Nov 17, 2019 at 10:09
• Cant understand, if you can provide an explanation it will be of much help, even I have no answer manual t... | {} |
Shorelines are temporary geologic and topographic features. Explain this statement.
# Shorelines are temporary geologic and topographic features. Explain this statement.
S
0 points
Shorelines are temporary geologic and topographic features. Explain this statement. (Hint: what are some of the forces affecting both th... | {} |
# bullet points - align text
Occasional Visitor
# bullet points - align text
Dear,
i have a curiosity. When i write with bullet points
for example like this
"
* I am writing
something
"
i would like the 2nd line to be aligned with the text to the first line, and not aligned with the bullet point as in the cas... | {} |
# Yeo Kheng Meng
Maker, Coder, Private Pilot, Retrocomputing Enthusiast
## Repair Kopitiam specialty electrical tools (Part 2): Short Circuit Limiter
If you have not read the previous post (Part 1) on this subject, I encourage you but it is not mandatory to do so before reading this post. I’ll still go through the f... | {} |
# zbMATH — the first resource for mathematics
Operators with singular continuous spectrum. II: Rank one operators. (English) Zbl 1055.47500
From the text: The main result is the following theorem: Let $$A$$ be selfadjoint with cyclic vector $$\phi$$ and corresponding rank-one projection $$P_\phi$$; then the set of $$\... | {} |
# RCE Endeavors😅
## October 6, 2021
### Making a Discord Chat Bot using Markov Chains (2/2)
Filed under: Programming — admin @ 12:35 PM
Continuing on from the previous post, this post will describe the steps involved in creating a Discord bot to write randomly generated chat to a server. Before continuing with thi... | {} |
# Calculating homology objects in this chain complex
Problem: Let $$R = k[x]/(x^2)$$ where $$k$$ is a field and consider the chain complex $$C : \qquad 0 \xrightarrow{d_2} R \xrightarrow{d_1} R \xrightarrow{d_0} 0$$ where $$d_1 : R \rightarrow R: f \mapsto xf.$$ Calculate the homology objects of the complex $$C$$.
At... | {} |
## File: Enumerations.tex
package info (click to toggle)
imagemagick 6:6.0.6.2-2.9
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141... | {} |
# Definite Integrals
The definite integral of a function is closely related to the antiderivative and indefinite integral of a function. The primary difference is that the indefinite integral, if it exists, is a real number value, while the latter two represent an infinite number of functions that differ only by a con... | {} |
# NEET Physics Wave Optics Questions Solved
In Young's double slit experiment, 62 fringes are seen in visible region for sodium light of wavelength 5893 Å. If violet light of wavelength 4358 Å is used in place of sodium light, then number of fringes seen will be
(1) 54
(2) 64
(3) 74
(4) 84 | {} |
# Computing locally free resolutions of a filtration of projective space
The title is unfortunately not as informative as it could be. What I want to do in this short blog is compute some locally free resolutions of certain sheaves. The sheaves I have in mind are structure sheaves for certain subvarieties of projectiv... | {} |
# Given two points A,B construct a right triangle so that AB is the hypotenuse and one of the acute angles is $\alpha$
I want to construct Pythagoras trees but my math is rusty so that I need to simplify the calculations. The tree is constructed counter-clockwise.
My approach:
Let A, B be $$(x_0, y_0)$$, $$(x_1, y_1... | {} |
Opened 11 years ago
Closed 7 years ago
# Symbolic Chebyshev polynomials
Reported by: Owned by: maldun burcin, maldun major sage-6.1 symbolics orthogonal polynomials, symbolics fredrik.johansson, fstan, kcrisman Stefan Reiterer Burcin Erocal, Travis Scrimshaw, Stefan Reiterer, Jeroen Demeyer N/A u/vbraun/chebyshev bb... | {} |
# Physical meaning of ##\psi_1(x)\hat{A}\psi_2(x)##
• I
What is the physical meaning of ##\psi_1(x)\hat{A}\psi_2(x)##, where ##\hat{A}## is an observable and, ##\psi_1(x)## and ##\psi_2(x)## are arbitrary wavefunctions?
Last edited:
olgerm
Gold Member
2022 Award
I don't see any physical meaning in this expression.
... | {} |
# Boris Buliga
Welcome to my personal site, where I irregularly post technical notes, usually Emacs or Haskell-related. I am developer at Wix during the daytime, and developer at home before and after the daytime. When I am not writing code, I am either drinking wine or drinking tea (with these little cups). Cheese is... | {} |
# How do you find lim_(x to 0) xcos(1/x)?
Aug 28, 2017
Given: ${\lim}_{x \to 0} x \cos \left(\frac{1}{x}\right)$
We know that the cosine function is bounded by -1 and 1:
$- 1 < {\lim}_{x \to 0} \cos \left(\frac{1}{x}\right) < 1$
And we know that
${\lim}_{x \to 0} x = 0$
Therefore, the limit of a bounded function... | {} |
# Tag Info
8
Broca is generally considered the first person to localise structure to function, however, there are some earlier individuals to consider: EDIT: i recommend the chapter Neurolinguistics from the Middle Ages to the Pre-Modern Era: Historical Vignettes in: Stemmer, B. & Whittaker, H.A. (1998). Handbook of ... | {} |
# Normals for smoothing groups issue
This topic is 2824 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
I have been creating an obj loader. I have pretty much everything working except for smoothing groups. They partially work.
I go through a... | {} |
# How to create a transformation matrix with HTML5?
In the following article, we are going to learn about how to create a transformation matrix with HTML5. HTML5 canvas provides methods that allow modifications directly to the transformation matrix. The transformation matrix must initially be the identity transform. I... | {} |
Q
# The escape speed of a projectile on the earth’s surface is 11.2 km s^–1. A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets.
Q: 8.18 The escape speed of a projectile on the earth’s surface is $\small 11.2\hspace ... | {} |
I am reading a paper "A Simple Way to Estimate Bid-Ask Spreads from Daily High and Low Prices" cf.A Simple Way to Estimate Bid-Ask Spreads from Daily High and Low Prices
The authors proposed the method of estimation the bid-ask spread from high and low prices of consecutive two days.
From what I can understand, there... | {} |
$\def \R {\mathbb R} \def \X {\mathcal X} \def \N {\mathbb N} \def \Z {\mathbb Z} \def \A {\mathcal A} \def \E {\mathcal E}$ In the beginning there is Time. Time moves, and creates dynamics on Space.
### Continuous and discrete time
In continuous time, time flows continuously at a constant unit rate:
whereas in disc... | {} |
Let $T$ be a labeled tree for propositional logic.
Let $\Gamma$ be a branch of $T$.
Then $\Gamma$ is a contradictory branch if and only if, for some WFF of propositional logic $\mathbf A$, both $\mathbf A$ and $\neg \mathbf A$ occur along $\Gamma$. | {} |
# 1.3 Basic commands
MATLAB uses functions like clear, close and clc to respectively clear all workspace variables, close all open figures and clear the command window. With the VIBES Toolbox, this can be performed all at once by calling the function clean.
clean
Almost all VIBES Toolbox methods and classes are fou... | {} |
# Biblatex field values and comparisons
I would like to change the behavior of printing author names based on the hash field in biblatex. This mwe should demonstrate what I am having difficulty understanding.
## MWE:
\documentclass{article}
\usepackage[backend=biber, style=phys, punctfont=true]{biblatex}
\usepackage... | {} |
Lotus Flower Diagram, Rsa Key Encode, Contour Next One Control Solution, Giri Movie Comedy Template, 2001 Ford Escape Spark Plug Gap, Hatsan Factor Price, Flat Black Oil Based Paint, How To Clean Stone Fireplace Surround, Install Latex Linux, What Is Variable Resistance Class 10, " />
# statistical rethinking notes
[... | {} |
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... | {} |
# Preface
This secton is devoted to a special class of variable coefficients linear differential equations. This remarkable class was discovered by Leonhard Euler who showed that these differential equations could be solved explicitely via elementary functions.
# Euler Equations
An Euler equation (also known as the ... | {} |
# Learn English – definition of “after a year’s worth of”?
phrase-meaning
There's a sentence:
After a year’s worth of design wrangling, we got down to business.
So the problem is I don't understand meaning of after a year’s worth of part. Some synonyms or definitions are appreciated.
Tried it on the Web but found... | {} |
user_guide.tex 12.6 KB
giannozz committed Jan 29, 2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 \documentclass[12pt,a4paper]{article} \def\version{5.0} \def\qe... | {} |
# Undulator
Working of the undulator. 1: magnets, 2: electron beam entering from the upper left, 3: synchrotron radiation exiting to the lower right
A multipole wiggler, as used in the storage ring at the Australian Synchrotron to generate synchrotron radiation
An undulator is an insertion device from high-energy phy... | {} |
# Whant can cause a runtime error in std::list::push_back()?
This topic is 4900 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
I'm storing several objects into a hash_map<string, CMyObject> and, from time to time (randomly, it seems) my code ... | {} |
# Using Cylindrical Coordinates to Compute Curl
I am given a vector field $\vec{A} = A_\rho \space \hat{e_\rho} + A_\phi \space \hat{e_\phi} + A_z \space \hat{e_z}$, and I am supposed to use the unit vectors (provided below) in cylindrical coordinates to calculate the gradient in cylindrical coordinates.
\begin{align... | {} |
# Multi-class neural networks
## More than $$2$$ classes
### Local Winner Takes All (LWTA) layer
The output for all nodes in a layer is $$0$$ unless it is the greatest.
### Maxout layer
Single node, spits out the max of all inputs. | {} |
# Complete a sequence using its distances
Given $$\A = (a_1,\dots,a_k)\ k\ge2 $/extract_tex] a sequence of positive integers, in which all elements are different. Starting from $$\i=2$$/extract_tex], while $$\a_i\in A:\$$ (until the last element) • If $$\d=|a_i-a_{i-1}|\$$ is not already in $$\A\$$, append $$\d\$$ to ... | {} |
This calculates the years between two dates using the 30/360 day basis convention. This convention assumes that months consists of 30 days and years consist of 360 calendar days.
thirty_360(date1, date2)
## Arguments
date1 A date-time object. A date-time object.
## Value
A numeric value representing the number of ... | {} |
# Recent results from TRISTAN
Authors
Type
Preprint
Publication Date
Oct 24, 1995
Submission Date
Oct 24, 1995
Identifiers
arXiv ID: hep-ex/9510010
Source
arXiv
The TRISTAN results from 1994 to 1995 are reviewed in this report. The physics results dominated the $\gamma \gamma$ physics. Therefore, only these are select... | {} |
# The Duh-Vinci Code/References
2,362pages on
this wiki
References
## Cultural ReferencesEdit
• The basic plot and title of the episode is a parody of "The Da Vinci Code". They also make a reference to Achilles' Heel.[1]
• The episode pays tribute to the Star Trek episode Requiem for Methuselah, in which the immorta... | {} |
# Radical Expression
Printable View
• Jan 9th 2011, 08:58 AM
milsen1
Radical Expression
Can someone show me how to simplify step by step?
4x^2/36x
Thank you!
• Jan 9th 2011, 09:04 AM
skeeter
Quote:
Originally Posted by milsen1
Can someone show me how to simplify step by step?
4x^2/36x
Thank you!
I think you mean ... | {} |
Feeds:
Posts
## Steps toward long memory arbitrage
The main technical issue for long memory stochastic volatility models that I have resolved theoretically is that the Donoho-Johnstone wavelet thresholding method can be used for optimal filtering in a Besov space for the noisy observations of log-stochastic volatilit... | {} |
# How should a GM properly handle the Bluff skill when it's used to Deceive or Lie?
Bluff states
You know how to tell a lie.
Check Bluff is an opposed skill check against your opponent’s Sense Motive skill.
Deceive or Lie
If you use Bluff to fool someone, with a successful check you convince your opponent that wha... | {} |
# If $: V(\phi) :$ is non-local in space, does that mean interacting quantum field theory is non-local?
Free field theories are definitely local in.
In the interaction picture, we can decompose the fields into creation operator modes and annihilation operator modes. The product of operators can be regulated to finite... | {} |
## Training Neural Network - Deep Learning and Neural Networks with Python and Pytorch p.4
Pytorch-4-Training-neural-network
### Training our Neural Network¶
In the previous tutorial, we created the code for our neural network. In this deep learning with Python and Pytorch tutorial, we'll be actually training this n... | {} |
# Demonstrating that the Mandelbrot Set is connected
I know that demonstrating the Mandelbrot Set is connected requires a non-trivial proof, and that Mandelbrot himself was fooled at first. But can it be demonstrated visually that the set is connected? If the Set were known to be path-connected, I might hope for a com... | {} |
Organizational development would be most useful to this organization vin terms of creativity, revitalizing
Question:
Organizational development would be most useful to this organization vin terms of creativity, revitalizing organizations, reactive change, innovation, adapting to mergers
Help me for extra points! how... | {} |
## HTML5 Canvas Clouds
This week I have some clouds for you, rendered via the HTML5 <canvas>. I wrote these in early 2013. I have not had a lot of time this week, but something cool is coming soon :)
The clouds themselves are stored in an array, and are composed of a random number of circles. This array is then itera... | {} |
## displayport – 2009 Mac Pro vs. 2018 LG Display
I've got a 2009 Mac Pro (5.1 flashed) with a Sapphire Radeon Pulse RX 580 8GB GPU that I've acquired to support Mojave. The configuration is fortunately stable since the end of 2018 and has worked as expected with my venerable 30-inch Apple Cinema Display.
However, af... | {} |
# zbMATH — the first resource for mathematics
Deduction in concept languages: From subsumption to instance checking. (English) Zbl 0809.68109
Summary: It is a common opinion that subsumption is the central reasoning task in frame-based knowledge representation languages (or concept languages). Intuitively, a concept $... | {} |
# A first order reaction takes 23.1 minutes for 50% completion. Calculate the time required for 75% completion of this reaction. - Chemistry
A first order reaction takes 23.1 minutes for 50% completion. Calculate the time required for 75% completion of this reaction.
(log 2 = 0.301, log 3 = 0.4771, log 4 = 0.6021)
#... | {} |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Due to system maintenance, CK-12 will be unavailable on Friday,8/19/2016 from 6:00p.m to 10:00p.m. PT.
# Universal Gas Law
## The universal gas law relates temperature, pressure, volume ... | {} |
... Set and/or logic notation. , The âVâ symbols in the readerâs question are ⨠and â§, which mean âLogical Orâ and âLogical And.âThe ⧠is a capital Greek Lambda.. These symbols also helps in identifying the type of operation. Implication / if-then (â) 5. Logical statements These symbols make the r... | {} |
Re: Another thought against the font substitution file as an immediate answer to the font naming problem
```Don is right, of course -- DVI drivers would also have to implement
the substitutions, and current DVI drivers use conflicting formats.
But I see this as an argument for TeX doing the substitutions, not
against ... | {} |
# Fusion frame
In mathematics, a fusion frame of a vector space is a natural extension of a frame. It is an additive construct of several, potentially "overlapping" frames. The motivation for this concept comes from the event that a signal can not be acquired by a single sensor alone (a constraint found by limitations... | {} |
# How to calculate the steering ratios on multiple axle vehicles?
I'm building a model of a long vehicle with 6 axles and I want to be able to steer it. How do I calculate the amount each axle should steer to minimise dragging of some wheels round sideways as it turns?
## 2 Answers
What you are talking about is call... | {} |
##### Actions
This article Austin Bradford Hill was adapted from an original article by Peter Armitage, which appeared in StatProb: The Encyclopedia Sponsored by Statistics and Probability Societies. The original article ([http://statprob.com/encyclopedia/AustinBradfordHILL.html StatProb Source], Local Files: pdf | te... | {} |
# A(n) is a magazine or newspaper that appears regularly, but not daily.
###### Question:
A(n) is a magazine or newspaper that appears regularly, but not daily.
### 6x + 3y = 9 2x + 3y = 1 solve the system of equations. a) x = 2, y = -1 b) x = -1, y = 2 c) x = - 1
6x + 3y = 9 2x + 3y = 1 solve the system of equatio... | {} |
Recent OpenFOAM.com versions work out-of-the-box. Recent OpenFOAM.org versions are also supported, but you will need a version-specific branch.
## How to get OpenFOAM
The easiest way to start is to get binary packages for your Linux distribution. For example, to get OpenFOAM v2106 on Ubuntu:
# Add the signing key, a... | {} |
## A probabilistic look at the Wiener-Hopf equation.(English)Zbl 0926.60040
The Wiener-Hopf integral equation $Z(x)=z(x)+ \int^x_{-\infty} Z(x-y)F(dy), \quad x\geq 0,$ is analysed by purely probabilistic methods. The author investigates the nonnegative solutions $$Z$$ of the equation assuming $$z$$ to be nonnegative a... | {} |
# Return to Answer
3 replaced http://mathematica.stackexchange.com/ with https://mathematica.stackexchange.com/
I learned from @halirutan's answer in ValueQ returns false positive for one argument type onlyValueQ returns false positive for one argument type only that ValueQ simply tests whether an expression is equal... | {} |
# editor/¶
## delegates.*¶
class ts2.editor.delegates.PlacesDelegate[source]
Bases: PyQt5.QtWidgets.QStyledItemDelegate
PlacesDelegate is a delegate that provides a combo box for selecting a Place.
createEditor(parent, option, index)[source]
Creates the editor, i.e. a combo box for selecting a place.
setEditorDa... | {} |
# Questions tagged [matlab]
For questions about solving Operations Research problems using Matlab programming language.
19 questions
Filter by
Sorted by
Tagged with
41 views
111 views
### Does anyone have the criss cross algorithm programming code to solve linear programming problems?
I have a project that require... | {} |
This unique state of matter is called a supercritical fluid, a topic that will be described in the next section of this module. The solid-liquid curve labeled BD shows the temperatures and pressures at which ice and liquid water are in equilibrium, representing the melting/freezing points for water. Download for free a... | {} |
In this expository article, we wish to investigate certain Diophantine equations arising from the Pythagorean theorem for integers and look at ways of investigating some of them. We also offer a proof of Fermat’s Last Theorem for the case $n=4$. The contents in this document are neither new nor original; it is merely a... | {} |
[ < ] [ > ] [ << ] [ Up ] [ >> ] [Top] [Contents] [Index] [ ? ]
### 5.6.2 Adding Support for Macros
The most common thing to define in a style hook is new symbols (TeX macros). Most likely along with a description of the arguments to the function, since the symbol itself can be defined automatically.
Here are a few ... | {} |
# Math Help - Finding angles
1. ## Finding angles
Find all the angles between $0^\circ$ and $360^\circ$ which satisfy the equation $sec(2x+30^\circ)=sec(2x-60^\circ)$
2. Originally Posted by Punch
Find all the angles between $0^\circ$ and $360^\circ$ which satisfy the equation $sec(2x+30^\circ)=sec(2x-60^\circ)$
$\s... | {} |
## SAS^(-1) is Block Upper Triangular (Blocks of size <= 2) [Possible Schur Decomp]
1. The problem statement, all variables and given/known data
Let A be an n×n real matrix. Show that there exists S such that SAS-1 is block upper triangular with diagonal blocks of size at most 2.
2. Relevant equations
BUP = block u... | {} |
# Segment Trees
## Synopsis
We introduce the segment tree, a data structure that makes queries over ranges in $${\mathcal O}(\log n)$$ time. | {} |
# Tag Info
1
The fields satisfy the wave equation. We can therefore write \begin{split} \phi(x) = \int \frac{ d^3 p}{ (2\pi)^3} \frac{1}{2 \omega_{\bf p} } \left[ a({\bf p}) e^{i p \cdot x} + b^\dagger({\bf p} ) e^{- i p \cdot x} \right] \\ \phi^\dagger (x) = \int \frac{ d^3 p}{ (2\pi)^3} \frac{1}{2 \omega_{\bf p} } ... | {} |
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# Oxidation and Reduction
Transformation of matter from one kind to another occurs through various types of reactions. One important category of such reactions is the Oxidation and Reduction reactions. These reactions find extensive use in the fiel... | {} |
# matching
## Strong matchings and covers ★★★
Author(s): Aharoni
Let $H$ be a \Def{hypergraph}. A \emph{strongly maximal} matching is a matching $F \subseteq E(H)$ so that $|F' \setminus F| \le |F \setminus F'|$ for every matching $F'$. A \emph{strongly minimal} cover is a (vertex) cover $X \subseteq V(H)$ so that $... | {} |
## Eli_So_Awsome 2 years ago For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. x y 3 6 6 18 8 24
1. nubeer
$y \alpha x$ for removing variation sign we put a constant y = kx now u have values of x and y in table try plugging in each value if u get same valu... | {} |
#### PROP_DAMAGE_CL_ANISOTROPIC
###### Material properties
*PROP_DAMAGE_CL_ANISOTROPIC
"Optional title"
did, erode, noic
$W_{0}$, $W_{90}$, $W_{t}$
##### Parameter definition
VariableDescription
did Unique damage identification number
erode Element erosion flag
options:
0 $\rightarrow$ failed element is not eroded
1 $... | {} |
# Lebesgue measure of some set of irrational numbers
Let $(i_{n})$ be a strictly increasing sequence of natural numbers, $(v_{n})$ be an unbounded sequences of natural numbers and $M\geq 2$. Denote by $\mathcal{I}(i_{n}, v_{n}, M)$ the set of all irrational numbers $\alpha=[a_{1}, a_{2},...,a_{s},...)\in (0,1)$ which ... | {} |
Home > Research > Publications & Outputs > GW190412
### Electronic data
• gw190412-discovery
Accepted author manuscript, 4.96 MB, PDF document
## GW190412: Observation of a binary-black-hole coalescence with asymmetric masses
Research output: Contribution to journalJournal articlepeer-review
Published
### Standa... | {} |
# overleaf add caption to tabular
This property is used to specify the position where the table caption is placed. To fix this, use the caption package with center as the option. Open this example in Overleaf. A quick visual guide to creating table cells with diagonal lines in LaTeX. Adding explaining text under a tab... | {} |
• 资源评价 •
### 1951—2014年中国北方地区季节气温突变与变暖停滞年份的时空变异性
1. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特 010018
• 收稿日期:2017-11-09 修回日期:2018-01-29 出版日期:2018-12-20 发布日期:2018-12-20
• 通讯作者: 马龙（1978- ）,男,内蒙古呼和浩特人,博士,教授,主要从事水文及水资源、气候变化、环境演变及响应关系研究。E-mail: malong4444333@163.com
• 作者简介:梁珑腾（1993- ）,男,山东临沂人,硕士研究生,主要从事水文及水资源、气候变化、环境演变及响应关系研究。E-mail: 101950... | {} |
# Problem #164
164 Let $C$ be the graph of $xy = 1$, and denote by $C^*$ the reflection of $C$ in the line $y = 2x$. Let the equation of $C^*$ be written in the form $$12x^2 + bxy + cy^2 + d = 0.$$ Find the product $bc$. This problem is copyrighted by the American Mathematics Competitions.
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# Time to write rendering engine from scratch
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### #1bigneil Members - Reputation: -49
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# It doesn’t make sense
### 现实中的典型场景
#### 确认偏差
What the human being is best at doing is interpreting all new information so that their prior conclusions remain intact.
— Warren Buffett
### 其他参考
#### 书籍
P.S. 文中没有区别偏见和偏差两个词，对应的英文都是Bias。 | {} |
# Lectures on Algebraic Geometry I
This book series, which grew out of lectures held by the author at Bonn University, is meant to serve as an introduction to modern algebraic geometry. Two thirds of the first of the two volumes contains a detailed introduction to homological algebra, cohomology of groups, cohomology ... | {} |
# Colour in generativepy
Martin McBride, 2020-08-31
Tags generativepy tutorial colour rgb hsl alpha css colours
Categories generativepy generativepy tutorial
generativepy provides several ways of defining colour values, via the color module. Colours are stored as Color objects.
You can create colours using:
• RGB v... | {} |
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