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# In Question , a sentence/ a part of the sentence is underlined. Below are given alternatives to the underlined part at (A), (B), (C) which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is (D). Mark your answer in the Answer SheetThe matter called $up$ an explan... | {} |
Historically, the term ‘free energy ’ has been used for either quantity. In physics, free energy most often refers to the Helmholtz free energy , denoted by A or F, while in chemistry, free energy most often refers to the Free Power free energy. The values of the two free energies are usually quite similar and the inte... | {} |
dc.contributor.author Bru J.-B. dc.contributor.author de Siqueira Pedra W. dc.contributor.author Hertling C. dc.date.accessioned 2016-06-13T13:32:50Z dc.date.available 2016-06-13T13:32:50Z dc.date.issued 2015-12-31 dc.identifier.issn 0022-2488 dc.identifier.uri http://hdl.handle.net/20.500.11824/182 dc.description.abst... | {} |
# Roots & Solutions
#### What is the deal with roots solutions?
The solution of a polynomial equation , f(x) , is the point whose root, r, is the value of x when f(x) = 0. Confusing semantics that are best clarified with a few simple examples.
Equation Solution Root
f(x) = 3x + 1 ($$\frac{-1}{3}$$, 0 ) since that is... | {} |
# Need help deriving a formula
Omar.Castillo
Hey could anyone help me out there to know how you get to the formula of free fall displacement. D= 1/2 x g x t^2? I really have no clue of how to get it using other formulas. I started using the D=Vi x T + 1/2 x A x T^2 but then I got stuck I didnt know which other formula... | {} |
# Determine the optimal strategy and maximize the reward
Given an array of length n filled with objects which contain 2 ints (size and reward).
Now 2 players are taking turns, each player has an int value we call strength. Let's call them player A and player B, player A goes first.
Player A can pick whichever object... | {} |
# Cannot understand the meaning of Derivative[1, 0][BesselK][-M, 2]?
When I do the following integration
Integrate[(Log[x]/x)*x^M*Exp[-x-1/x],{x,0,\[Infinity]},Assumptions->Element[M,PositiveIntegers]]
Mathematica return a very strange result that is
In this case what is the meaning of Derivative[1,0]. Is it some ... | {} |
ǰλ: ¸Ӣ > ӢĸƼ > ¸Ӣ̬ʵ÷
# ¸Ӣ̬ʵ÷
ʱ:2013-12-03༭:¸Ӣwww.new-english.org
̬ʵļ÷
̬(Modal Verbs),ֳΪ̬(Modal Auxiliaries),ʵ嶯ñʾ˵˵,ɱｨ顢ҪܡԸȡ̬б:
̬ m a y , m i g h t , c a n ,,ܹ c o u l d ,,ܹ m u s t s h a l l Ӧ,Ҫ s h o u l d Ӧ o u g h t t o Ӧ n e e d Ҫ d a r e d a r e d w i l l ,Ը w o u l d ,Ը
̬û˳ƺı仯,˳Ƶ̬ʲs,̬ʵĹȥʽֻʾ,ʾʱ䡣
̬ʵ÷ܶ,ܷ־伸Ҫ÷... | {} |
# Resistors both in series and in parallel?
Consider this circuit. I'm assuming that the resistors have the same resistance. The same amount of current flows through them so they must be in series. But the voltage across each resistor is also the same so they must be in parallel. So are these resistors connected in se... | {} |
## Maxwell’s equation Lagrangian (geometric algebra and tensor formalism)
Maxwell’s equation using geometric algebra Lagrangian.
## Motivation.
In my classical mechanics notes, I’ve got computations of Maxwell’s equation (singular in it’s geometric algebra form) from a Lagrangian in various ways (using a tensor, sca... | {} |
2:15 AM
D1, D2, D3, D4
D5, D6, D7, D8
2:37 AM
@Peter The first part (“the iterations can converge or not”) is surely correct. The second part (“the Newtons iterations converges quickly in general”) is an oversimplification IMO.
3 hours later…
5:36 AM
3 hours later…
8:37 AM
close: the question author has no idea what... | {} |
# (3x-4y)(3x-4y)=
## Simple and best practice solution for (3x-4y)(3x-4y)= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so dont hesitate to use it as a solution of your homework.
If it's not what You are looking for type in the equation solver your own e... | {} |
# Relationship between projections and least squares
To preface, this is a fairly basic linear algebra question, but I've been unsuccessful in finding a similar question on this site.
In the method of least squares for linear regression that is discussed in linear algebra, where the line is in the form of $$y=Cx+D$$ ... | {} |
Decomposition of a non chain ring
I'm dealing with decomposition of the quotient ring ${{\mathbb{Z}_2}\left[ {x,y} \right]}$ over ${\left( {{x^3} - 1,{y^3} - 1} \right)}$. I know that I should use the Chinese remainder theorem but I failed. How can this ring be decomposed?
• While saying you tried this and failed is ... | {} |
sklearn.linear_model.lars_path¶
sklearn.linear_model.lars_path(X, y, Xy=None, *, Gram=None, max_iter=500, alpha_min=0, method='lar', copy_X=True, eps=2.220446049250313e-16, copy_Gram=True, verbose=0, return_path=True, return_n_iter=False, positive=False)[source]
Compute Least Angle Regression or Lasso path using LARS... | {} |
7CCMMS05T公制和Banach空间（MSc）
7CCMMS05U公制和Banach空间（MSci）
2020年夏季
1. A（i）令X为向量空间。说k k是范数是什么意思
（ii）对于1 p 1，请准确说明说该序列是什么意思
x =（x1; x2;：：：）的复数属于`p
。写下定义
p上（标准）规范的
。 [3分]
B令1 <p; r <1.给出必要和充分的条件（在
p和r的项），用于连续嵌入`p
`r
2（x + y）k> 1表示kx yk <“。
kx + yk2
+ kx yk2
= 2kxk2
+ 2kyk2
[11分]
2. A让1 p <1。精确说明说一个函数的含义
f：[0； 1]！ C属于Lp
（[0... | {} |
1. Engineering
2. Electrical Engineering
3. find the transferfunction gz of the fir filter yn ...
# Question: find the transferfunction gz of the fir filter yn ...
###### Question details
Find the transfer-function G(z) of the FIR filter
y[n] = (1/(M+1))Sum x[n-1] where sum is the sum from i=0 to M
Obtain its zero... | {} |
# If $M$ be a finitely generated module over a Noetherian ring $A,$ then $\widehat{aM}=\hat{a} \hat{M}.$
Let $$M$$ be a finitely generated module over a Noetherian ring $$A.$$ Let $$\hat{M}$$ be the $$a$$-adic completion of $$M.$$ Then how can I show that $$\widehat{aM}=\hat{a} \hat{M}.$$
I know that $$\hat{A}$$ is f... | {} |
# Total distance Issue
• February 13th 2013, 03:18 PM
minneola24
Total distance Issue
Attachment 27004
A bit stuck on this one.
The original equation is x = 1/3t^3 etc etc
Do I set X equal to Y and t is pretty much X?
And do I enter it in on my graphic calculator as such?
A bit confused on the t=3 question too. T... | {} |
# Is there a closed form for the “positive summands” of the fejer kernel?
I've come across the Fejer kernel $K_N(t) = \sum_{k = -N}^N (1- \frac{\vert k \vert}{N+1}) e^{ikt}$. Now, in my application, I only need the positive part, that is $K_n^{+}(t) =\sum_{k=0}^N (1- \frac{\vert k \vert}{N +1}) e^{ikt}$. Now, for the ... | {} |
# thaithaisf.com
Main / Strategy / For latex
# For latex
If you just want to print the statement, then something like \[ \text{for $k = 1$, $k{+ }{+}$, while $k. LaTeX has several packages for typesetting algorithms in form of "pseudocode". They provide stylistic enhancements over a uniform style (i.e., all in typew... | {} |
## Wednesday, July 22, 2020
### Happy casual π day!
Today is also known as π approximation day. Today is July 22, which is written as 22/7 in many countries.
22/7 is a rational number with repeating digits in decimal 3.14285714285714... and is one of the earliest approximation (besides the number 3) to π = 3.1415926... | {} |
Using Python on Unix platforms
On Linux
Python comes preinstalled on most Linux distributions, and is available as a package on all others. However there are certain features you might want to use that are not available on your distro's package. You can easily compile the latest version of Python from source.
In the... | {} |
• 0 Vote(s) - 0 Average
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On the $$2 \pi i$$-periodic solution to tetration, base e JmsNxn Long Time Fellow Posts: 571 Threads: 95 Joined: Dec 2010 09/28/2021, 05:44 AM I wrote a brief expose on how the periodic solutions to tetrations work base e. I focused solely on the $2 \pi i$-periodic case. And... | {} |
# Maryam Mirzakhani
Maryam Mirzakhani
مریم میرزاخانی
Mirzakhani at the 2014 International Congress of Mathematicians in Seoul, where she received the Fields Medal.
Born12 May 1977[1]
22 Ordibehesht 1356[2]
Tehran, Iran
Died14 July 2017 (aged 40)
EducationSharif University of Technology (BSc)
Harvard University (PhD)
S... | {} |
# Implementing Fama-MacBeth cross sectional regression
I have built a Fama and French three factors model (market excess return, small-minus-big, high-minus-low) and estimated its betas through a time series regression (code in R, but any other language works fine too):
lm(return ~ market_excess_return + small_minus_... | {} |
# Is the dealer a volunteer in Shamir secret sharing scheme?
In this Paper, Shamir secret sharing scheme there is one dealer and n players. The dealer gives a share of the secret to the players, but only when specific conditions are fulfilled will the players be able to reconstruct the secret from their shares. The de... | {} |
# The most optimal way to solve this set of non-linear equations in high dimensions
So I have a series of non-linear equations which I wish to solve as fast as possible, to illustrate for the case of $n = 4$, I have the following equations:
\begin{gather*} c_0\exp(\lambda_0-1)+f\exp(\lambda_0 + \lambda_1 + \lambda_2 ... | {} |
Prove that the sequence given by $x_1=1, x_{n+1}=x_n+\frac{1}{x_n^2}$ is unbounded [closed]
Prove that the sequence given by $x_1=1, x_{n+1}=x_n+\frac{1}{x_n^2}$ is unbounded.
It is enough to prove that $\lim_{n\rightarrow\infty} x_n = \infty$. Any hint please?
closed as off-topic by mercio, Najib Idrissi, Schroding... | {} |
E. Radio stations
time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output
In the lattice points of the coordinate line there are n radio stations, the i-th of which is described by three integers:
• xi — the coordinate of the i-th station on the line,
• ri — the b... | {} |
# Could I trust such a FlashPlayer update
On the same track than this old question:
How do I tell if the Flash Player Installer is a virus?
I see a new proposal regularly poping up during my web browsing:
Nothing within this installer tells me which version is here proposed.
If I check within:
Adobe Flash Player P... | {} |
# How to build very low cost current transformer?
Im building low cost home energy monitoring system. I want to see how much energy is used by water heater, big water pump, kitchen equipment, lightning, computer. I would be awesome if I could measure every light and socket in my house.
I found relatively cheap curren... | {} |
# Thankful for Worldwide standards
Tags:
1. May 29, 2016
### Algr
The world is divided by many conflicting standards. Spoken languages, Metric vrs English, 50hz vrs 60 hz current and video, right and left hand driving, ext... But AFAIK, there do seem to be a few things that the world has thankfully agreed upon:
Ara... | {} |
Phenomenology of Light Sneutrino Dark Matter in cMSSM/mSUGRA with Inverse Seesaw
Phenomenology of Light Sneutrino Dark Matter in cMSSM/mSUGRA with Inverse Seesaw
Maryland Center for Fundamental Physics, Department of Physics, University of Maryland, College Park, MD 20742, USA.
Consortium for Fundamental Physics, Sch... | {} |
暗无天日
=============>DarkSun的个人博客
笑话理解之Devil
scared devil out of people
Some ecclesiastical gentlemen -- a cardinal, a couple of bishops and some others -- were waiting outside the Pearly Gates for St. Peter to open up.
He finally arrived, but just they were about to enter heaven St. Peter asked them to wait a momen... | {} |
시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
5 초 128 MB 18 6 1 11.111%
문제
In AD 3456, the earth is too small for hundreds of billions of people to live in peace. Interstellar Colonization Project with Cubes (ICPC) is a project that tries to move people on the earth to space colonies to ameliorate the problem. ICPC obtained funding... | {} |
step-stool.io
As of a couple hours ago, my newest personal project has a website. Step Stool, the static site generator I’m writing in Python, now has a home at step-stool.io.1 If you visit the site, you’ll see that, while it looks nice (at least: I think it does), there’s not much to it and most of the links don’t go... | {} |
The newRPL display interface is similar to that of the stock HP 50g ROM in that the top ~65% of the display is the stack area (levels 1 through 7), followed by a row of soft menus. A new feature of newRPL is two separate sets of soft menus. The top set of soft menus (Menu 1) spans the width of the display. The second s... | {} |
## April 20, 2014
### Complexity Is Irreversible
Once again, programming language flame wars are erupting over the internet. This latest one gives us a helpful list of "harmful things" and "less harmful things". Unfortunately, I felt that it was a little inaccurate, so I decided to improve it:
Harmful thingsLess Har... | {} |
# Paul Stephen Aspinwall
• Professor of Mathematics
• Professor of Physics (Secondary)
External address: 244 Physics Bldg, Durham, NC 27708
Internal office address: Box 90320, Durham, NC 27708-0320
Phone: (919) 660-2874
Office Hours:
1:00 to 2:00pm each Tuesday
10:30am to 11:30am each Thursday
### Research Areas and... | {} |
The Adams method (also: divisor method with rounding up ) is a method of proportional representation ( seat allocation method ), as it is e.g. B. in elections with the principle of proportional representation (see proportional representation ) is required to convert votes into members of parliament.
The American polit... | {} |
# MATLAB: Can u please tell me that here ‘a’ is a array or matrix and what it means by max(max(aa))
surf feature detection
points = detectSURFFeatures(B); axes(handles.axes1); imshow(B); hold on; plot(points.selectStrongest(10)); title('SURF feature result on input image','fontsize',15);pause(1); a = points aa ... | {} |
I'm watching MIT chemistry by Donald Sadoway. In one of his lectures devoted to solutions and phase separation, he performs experiments with absinthe. First he mixes absinthe with 5 $\times$ water which turns into milky louche.
Then he adds some cognac and the mixture becomes transparent again. I don't grasp his expla... | {} |
메인 콘텐츠로 건너뛰기
# Do I have to connect to a network to use a floating license?
Last Updated:05/17/2017
## Question:
Do I have to connect to a network to use a floating license? | {} |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 12 Dec 2018, 08:35
CMU Tepper in Calling R1 Admits | Kellogg Calls are Expected Shortly
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questi... | {} |
# Homework Help: Is a system of equations consistent?
1. Jan 15, 2008
### SticksandStones
1. The problem statement, all variables and given/known data
Tell if the given system is consistent or not:
$$X_{1} -2X_{4} = -3$$
$$2X_{2}+2X_{3} = 0$$
$$X_{3}+3X_{4} = 1$$
$$-2X_{1}+3X_{2}+2X_{3}+X_{4} = 5$$
2. Relevant equat... | {} |
# ATLAS
2020-01-2310:09 [PUBDB-2020-00510] Report/Journal Article Nir, Y. The Higgs program and open questions in particle physics and cosmology [arXiv:1905.00382] Physics / Uspekhi Uspekhi [...] 189(9), 920 - 930 (2019) [10.3367/UFNe.2019.05.038568] The Higgs program is relevant to many of the open fundamental que... | {} |
Subjects -> AERONAUTICS AND SPACE FLIGHT (Total: 121 journals)
Showing 1 - 30 of 30 Journals sorted by number of followers AIAA Journal (Followers: 1188) SpaceNews (Followers: 826) Journal of Spacecraft and Rockets (Followers: 772) Journal of Propulsion and Power (Followers: 609) Acta Astronaut... | {} |
# What's the square root of 14.12?
* Either 1 or −1 is a square root of 1 (written $\pm \sqrt 1$), ... Twice the square of the fi... (continue) Homework Questions: ... - Read more
It is very easy to find sqaure roots. 150 is not a perfect square so its square ... Root Of 2 Times The Square Root 5 Square Root Of 3? ..... | {} |
## rate law vs integrated rate law
$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$
Helen Shi 1J
Posts: 78
Joined: Sat Jul 22, 2017 3:00 am
### rate law vs integrated rate law
What is the difference between the rate law and the integrated rate law?
Ashin_Jose_1H
Posts: 51
Joined: Fri S... | {} |
• Overview
• Reviews
• What's new
# Dow Jones Predictor MT5
Dow Jones Predictor is a professional expert advisor that trades spot CFD of Dow Jones Industrial Average US Stock Market Index (US30, DJIA, DOW30) with stable positive results. It uses Price Cyclicality, Relative Cyclicality, Adaptive CyclicalityCompound Cy... | {} |
Background
Taking an example from Decoding GZIP encoded Body, BodyBytes (ByteArray) and BodyBytesArray from URLRead:
URLRead[
]
{ ...
, "content-type" -> "application/json; charset=utf-8"
, "content-encoding" -> "gzip"
, ...
}
Import @ "https://api.stackexchange.com/2.2/info?site=mathematica"
returns string json ... | {} |
# Automatic differentiation with autograd¶
We train models to get better and better as a function of experience. Usually, getting better means minimizing a loss function. To achieve this goal, we often iteratively compute the gradient of the loss with respect to weights and then update the weights accordingly. While t... | {} |
### Mixbiopells: Enhancing the Market Relevance of Alternative and Mixed Biomass Pellets in Europe
T. Zeng, A. Pollex, V. Lenz, E. Alakangas, A. Sager & M. Rönnbäck
Currently, wood is the predominant fuel used for biomass combustion in Europe. However, caused by the growing demand for material and energy related use w... | {} |
# Thread: short question in ring theory
1. ## short question in ring theory
Let F be a field. State under what circumstances, if any, F is respectively an Euclidean Domain, Principal Ideal Domain, Uniqe Factorization Domain. Justify your answers
Thank you very much in advanced
2. Originally Posted by knguyen2005
Le... | {} |
Let me know if you need some clarification.. Thank you!
Image text transcribed for accessibility: Set up the integral that would represent the volume of the object with the vertical cross-sections in the shape of an isosceles triangle whose height is defined by the semi-ellipse with the semi-minor axis of 5 and semi-m... | {} |
# How are you going to solve this?
Calculus Level 4
$\large \lim _{ n\to\infty }{ \dfrac { n-\zeta (2)-\zeta (3)-\cdots-\zeta (n) }{ n-1-\zeta (2)-\zeta (3)-\cdots-\zeta (n-1) } }$
The limit above has a closed form. Find the value of this closed form.
Notation: $$\zeta(\cdot)$$ denotes the Riemann zeta function.
× | {} |
# Thread: 27.1 Initial value problem
1. ## 27.1 Initial value problem
did a c/p just avoid typos
ok the example did this
$$A=\begin{pmatrix}1&2\\3&2 \end{pmatrix}$$
and
$$y'=Ay$$
with initial value $$y(0)=\begin{pmatrix}y_1(0)\\y_2(0) \end{pmatrix}$$
ok I'm ????
2. ## Re: 27.1 Initial value problem
$y = c_1 e^{... | {} |
## General Kriging for Spatial-Temporal Processes with Random ARX-Regression Parameters
• In the following, we discuss a procedure for interpolating a spatial-temporal stochastic process. We stick to a particular, moderately general model but the approach can be easily transered to other similar problems. The original... | {} |
# Find the integral int_0^(pi/4) [1-tan(4x)]dx?
Oct 5, 2017
${\int}_{0}^{\frac{\pi}{4}} \left[1 - \tan \left(4 x\right)\right] \mathrm{dx} = \frac{\pi}{4}$
#### Explanation:
Let $4 x = u$, then $4 \mathrm{dx} = \mathrm{du}$ and we can write ${\int}_{0}^{\frac{\pi}{4}} \left[1 - \tan \left(4 x\right)\right] \mathrm{... | {} |
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# Combinatorics and Discrete Mathematics
$$\newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} }$$
$$\newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}}$$
Combinatorics is a branch of mathematics concerning the study of finite or countable di... | {} |
# Sweet and Sour Limits | Robert Low
Eagle-eyed friend of the blog @robjlow spotted an error in Uncle Colin’s last answer. As I’m forever telling my students, making errors is how you learn; Rob has graciously delivered a lesson for us all. Thanks for keeping me honest!
Recently, Uncle Colin gave a couple of ways to ... | {} |
Change the chapter
Question
Which of the following spectroscopic notations are not allowed? (a) $5s^1$ (b) $1d^1$ (c) $4s^3$ (d) $3p^7$ (e) $5g^{15}$. State which rule is violated for each that is not allowed.
1. allowed
2. $l=2$ exceeds the maximum allowed for $n=1$
3. A maximum of two electrons may occupy the "s" sub... | {} |
## arXiv Analytics
### arXiv:2007.15632 [astro-ph.CO]AbstractReferencesReviewsResources
#### KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
Published 2020-07-30Version 1
We present a joint cosmological analysis of weak gravitational lensing observations f... | {} |
# Force derived from Yukawa potential
This is with regards to problem 3.19 from Goldstein's Classical Mechanics,
A particle moves in a force field described by the Yukowa potential $$V(r) = -\frac{k}{r} e^{-\frac{r}{a}},$$ where $$k$$ and $$a$$ are positive.
where I bolded the assumptions as this is the only informa... | {} |
# human_time¶
astropy.utils.console.human_time(seconds)[source]
Returns a human-friendly time string that is always exactly 6 characters long.
Depending on the number of seconds given, can be one of:
1w 3d
2d 4h
1h 5m
1m 4s
15s
Will be in color if console coloring is turned on.
Parameters: seconds : int The numb... | {} |
The following structure is an anion with three possible resonance contributors. One incomplete resonance form is shown below. Complete the given structure by adding nonbonding electrons and formal charges. Draw the two remaining resonance structures (in any order), including nonbonding electrons and formal charges. | {} |
Although surfers have high incidental exposure to marine waters, no studies have investigated if surfer risk behaviors (such as surfing during advisories, near an outfall, during a rain event, or use of personal protective equipment) increase or decrease the risk of acquiring waterborne illnesses. We used a web-based s... | {} |
com.opengamma.strata.calc.runner
• All Implemented Interfaces:
Bean, ImmutableBean
public final class CalculationTasks
extends Object
implements ImmutableBean
The tasks that will be used to perform the calculations.
This captures the targets, columns and tasks that define the result grid. Each task can be executed t... | {} |
### Tangram Tangle
If you split the square into these two pieces, it is possible to fit the pieces together again to make a new shape. How many new shapes can you make?
### Triple Cubes
This challenge involves eight three-cube models made from interlocking cubes. Investigate different ways of putting the models toge... | {} |
# Minimal working example on how to use biblatex for LaTeX
Biblatex is a powerful tool for creating and managing references in LaTeX documents. The following (minimal) example shows how to use it.
$$\documentclass{scrartcl} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} % Step 1: Load biblatex package \usepackag... | {} |
Homework Help: Momentum Physics Problem
1. Jan 18, 2016
master_333
1. The problem statement, all variables and given/known data
A 0.150-kg baseball, thrown with a speed of 40.0 m/s, is hit straight back at the pitcher with a speed of
50.0 m/s. (a) What is the magnitude of the impulse delivered by the bat to the base... | {} |
innotop version 1.0 released
I've made the 1.0 release I promised yesterday, and it is available for download on the innotop project homepage. I'm now working on version 1.3, which is will become 1.4, which is on the road to version 2.0. I've added a project roadmap for versions 1.4, 1.6, 1.8 and 2.0.
Thanks to Sebas... | {} |
# Similarity transformation to the transpose
I have a real nxn matrix A and I want to find P, so that P-1AP=AT. Does such a matrix exist? How do I find it?
What if I have two matrices A,B. Does there exist a matrix P, that transforms both of them to their transposes?
Thanks
Fredrik
Staff Emeritus
Gold Member
This isn... | {} |
# Richter magnitude scale
The Richter magnitude scale (also Richter scale) assigns a magnitude number to quantify the size of an earthquake. The Richter scale, developed in the 1930s, is a base-10 logarithmic scale, which defines magnitude as the logarithm of the ratio of the amplitude of the seismic waves to an arbit... | {} |
# Tag Info
17
One of the advantages is purely on the human side of security. From RFC 6238's abstract: The HOTP algorithm specifies an event-based OTP algorithm, where the moving factor is an event counter. The present work bases the moving factor on a time value. A time-based variant of the OTP algorithm provides sh... | {} |
# kenzo: Construct topological spaces and compute homology groups¶
## Description¶
Kenzo is a package to compute properties (mainly homology groups) of topological spaces. It allows defining spaces created from others by constuctions like loop spaces, classifying spaces and so on.
GPL
## Dependencies¶
• ECL (Embed... | {} |
## Inertance
The above video depicts fluid velocity and displacement resulting from fully developed oscillatory flow in a cylindrical vessel. It is intended to conjure an impression of a mass of fluid that is being accelerated within a tube. I use the term acceleration here in the technical sense which is literally ... | {} |
Differential and Integral Equations
Nonlinear perturbations of some non-invertible differential operators
Abstract
We consider perturbations, depending on a small parameter $\lambda$, of a non-invertible differential operator having a nonnegative spectrum. Given a pair of lower and upper solutions, belonging to the ... | {} |
# Bounding point
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Let ${\displaystyle A\subset X}$ for some vector space ${\displaystyle X}$. Then ${\displaystyle x\in X}$ is a bounding point for ${\displaystyle A}$ if it is neither an internal point for ${\displaystyle A}$ nor its complement... | {} |
# Yong Hu
According to our database1, Yong Hu authored at least 193 papers between 1991 and 2019.
Collaborative distances:
Book
In proceedings
Article
PhD thesis
Other
## Bibliography
2019
Simple very deep convolutional network for robust hand pose regression from a single depth image.
Pattern Recognition Letters,... | {} |
# Next / Last functionality using fields
I have a bunch of tiddlers that are numbered consecutively in one of the fields. I’d like to link to the next and last tiddler in that field’s sequence on each tiddler’s page, how might I go about that?
Try this:
Create a tiddler (e.g., “NavSeq”), tagged with $:/tags/ViewTemp... | {} |
# Parametric equation of a circle in 3 space - odd result
I have the following problem involving parameterized circular equations, but am getting strange answers and wanted to check if my approach made any sense. In 3D space, the parametric equation of a circle is given by
$\vec r(t) = \vec c + r \cos(t) \vec u + r \... | {} |
Find expressions for the quadratic functions whose graphs are shown. So I got f(x)=3(x-5)^2 and g(x)=-7.5=a^2+b and they're both wrong so any help is appreciated.
edit:Yes I've seen the other posts but don't know how to apply to these problems.
$$f(x)=2(x-5)^2$$
since $f(6)=2$
$y=ax^2+bx+c$
$11=a(-4)^2+b(-4)+c$
$... | {} |
### 5.25 Exec
• Exec( <program> [, <argument(s)>, <working directory>, <wait>, <show window>] ).
• Description: the function executes a <program> (or a script) specifying any <arguments> and a <working directory>, the three other arguments are interpreted as strings. The argument <wait> whose value is $0$ (default) or... | {} |
# Predicting Products Of Chemical Reactions Chemistry If8766
Some of the worksheets for this concept are Predicting products of chemical reactions work, Steps to predicting the products of chemical reactions, Predicting reactions work answers, Predicting reaction products work and answer key, Read online predicting re... | {} |
# mathlibdocumentation
data.qpf.multivariate.basic
# Multivariate quotients of polynomial functors.
Basic definition of multivariate QPF. QPFs form a compositional framework for defining inductive and coinductive types, their quotients and nesting.
The idea is based on building ever larger functors. For instance, w... | {} |
# What Is the Nearest Positive Semidefinite Matrix?
Given a symmetric matrix and a nonnegative number $\delta$, what is the nearest symmetric matrix whose eigenvalues are all at least $\delta$? In other words, how can we project a symmetric matrix onto the set of symmetric positive semidefinite matrices with eigenvalu... | {} |
Free fall motion
1. Jan 21, 2008
clope023
[SOLVED] free fall motion
1. The problem statement, all variables and given/known data
A helicopter carrying Dr. Evil takes off with a constant upward acceleration of 5.0m/s^2. Secret agent Austin Powers jumps on just as the helicopter lifts off the ground. After the two m... | {} |
# Using formulas to solve problems
4. set write a movie up a clothes business plan linear equation involving distance, rate, and time. on saturday. using formulas to solve problems unit 31 using formulas part 5 1. solve the resulting equation and label the writing book reviews for money answer. for this concept, we wi... | {} |
2. Other
3. what are the ethical issues concerning marketing and advertising in...
# Question: what are the ethical issues concerning marketing and advertising in...
###### Question details
What are the ethical issues concerning marketing and advertising in relation to consumer ‘autonomy’ and 'targeting the vulnerab... | {} |
# Algebra Commons™
## All Articles in Algebra
979 full-text articles. Page 6 of 36.
2018 Bard College
#### An Implementation Of The Solution To The Conjugacy Problem On Thompson's Group V, Rachel K. Nalecz
##### Senior Projects Spring 2018
We describe an implementation of the solution to the conjugacy problem in ... | {} |
# A Matrix Commuting With a Diagonal Matrix with Distinct Entries is Diagonal
## Problem 492
Let
$D=\begin{bmatrix} d_1 & 0 & \dots & 0 \\ 0 &d_2 & \dots & 0 \\ \vdots & & \ddots & \vdots \\ 0 & 0 & \dots & d_n \end{bmatrix}$ be a diagonal matrix with distinct diagonal entries: $d_i\neq d_j$ if $i\neq j$.
Let $A=(a_{... | {} |
# SOL QP-MINOS
This page is part of the SOL Manual. See SOL.
## Using TOMLAB
### Purpose
minosQPTL solves quadratic optimization problems defined as
${\displaystyle {\begin{array}{ll}\min \limits _{x}&f(x)={\frac {1}{2}}x^{T}Fx+c^{T}x\\&\\s/t&{\begin{array}{lcccl}x_{L}&\leq &x&\leq &x_{U},\\b_{L}&\leq &Ax&\leq &b... | {} |
Herein, what type of reaction is ch4 2o2 → co2 2h2o? If the effective oxidation number of any particular atom changes during the reaction then a redox reaction has occurred. Fe^2+ +2OH^- =Fe(OH)2 I chose number 3, is this correct? in a particular redox reaction, MnO2 is oxidized to MnO4â and fe3+ is reduced to fe2+. ... | {} |
# HSA-SSE.A.2
Use the structure of an expression to identify ways to rewrite it. For example, see $x^4 - y^4$ as $(x^2)^2 - (y^2)^2$, thus recognizing it as a difference of squares that can be factored as $(x^2 - y^2)(x^2 + y^2)$. | {} |
# Aptitude Logical Reasoning Profit and Loss 2021 Uttar Pradesh PSC Exam Part 7
Glide to success with Doorsteptutor material for CMAT : fully solved questions with step-by-step explanation- practice your way to success.
1. In a certain store, the profit is 320 % of the cost. If the cost increases by 25 % but the sell... | {} |
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).
4 + link to further discussion
Feeling a vague inclination to keep the topic warm, but failing a clear sense of the word "random" that is wanted here, maybe it would... | {} |
# Question Paper from: SSC CPO (Shift-1)
What is the curved surface area (in cm2 ) of a cylinder having radius of base as 21 cm and height as 30 cm?
1:
3740
2:
3850
3:
1980
4:
3960 | {} |
unhandled win32 exception in WolframKernel.exe in DSolve of non-linear ODE in one variable
Bug persisting through 10.4. (windows 7, 64 bit)
Installed 10.3.1 and started to run some old ode's. in V 9, this ode used to return unsolved, which is ok, but in 10.3.1 now the kernel crashes. This is on windows 7, 64 bits. I ... | {} |
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