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## Introduction
Increasing energy demands encourage scientists to find low-cost, clean, renewable, and sustainable alternative energy sources1,2,3. A comparative study of literature on various alternative fuels, such as ethanol, vegetable oils, microbial oils, biomass, glycerol, biodiesel, and hydrogen, has been repor... | {} |
# I Parameterize an offset ellipse and calculate the surface area
Tags:
1. Mar 16, 2016
### Thales Costa
I'm given that:
S is the surface z =√(x² + y²) and (x − 2)² + 4y² ≤ 1
I tried parametrizing it using polar coordinates setting
x = 2 + rcos(θ)
y = 2rsin(θ)
0≤θ≤2π, 0≤r≤1
But I'm not getting the ellipse that the... | {} |
# Question 13ptsWhich of the following is a mathematical statement of the ideal gas law?RT/PVPVRTPV/RTVrtip1 ptsQuestion 14
###### Question:
Question 13 pts Which of the following is a mathematical statement of the ideal gas law? RT/PV PVRT PV/RT Vrtip 1 pts Question 14
#### Similar Solved Questions
##### 1. Conver... | {} |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 19 Jul 2018, 01:10
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customize... | {} |
# Tag Info
let $\frac{\partial C}{\partial S}=\delta_c$ let $\frac{\partial^2 C}{\partial S^2}=\Gamma_c$ let $\frac{\partial C_0}{\partial S}=\delta_0$ let $\frac{\partial^2 C_0}{\partial S^2}=\Gamma_0$ we want $\frac{\partial V}{\partial S}=\frac{\partial C}{\partial S}=\delta_c$ and $\frac{\partial^2 V}{\partial S^2... | {} |
FeaturePlot on a KDE Plot/density plot
0
0
Entering edit mode
19 months ago
fouerghi20 ▴ 60
I created a KDE plot (density plot) using the following code:
contplus <- data.frame(scADAR$tsne@cell.embeddings) tSNE_1 <- scADAR$tsne@cell.embeddings[,1]
# Initialize arrays for data subsets for each condition and for plots... | {} |
12:08 AM
@Semiclassical right
12:45 AM
@bolbteppa oh lawd
5 hours later…
6:12 AM
There are plenty of criticism of math textbooks
Some by none other than Feynmann
7:12 AM
3
1 hour later…
8:28 AM
Feb 20 '15 at 15:17, by ACuriousMind
A lie-to-children is a simplified explanation of technical or complex subjects as a t... | {} |
# Linearized Gravity and the Transverse-Traceless Gauge Conditions
1. Sep 8, 2012
### Alexrey
1. The problem statement, all variables and given/known data
I'm working on some things to do with linearized gravitational radiation and I'm trying to justify the claim that in the Lorenz gauge, where $$\partial_{\nu}\bar{... | {} |
HOME › pipelines
# Changes that apply to Gene Expression and Feature Barcode analysis
1. Targeted Gene Expression analysis is available in Cell Ranger 4.0 and is invoked by specifying the --target-panel option when running the cellranger count command.
2. Cell Ranger 4.0 introduces the new targeted-compare pipeli... | {} |
# Deduction Seems Vulnerable to the Problem of Induction
Dirty little secret about logic: If induction has a justification problem (and it does), then so does deduction. Why? Because deductions rely on inductive conclusions imported into their premises. Here are a few examples.
A. Aristotelian Syllogism:
1. All men ... | {} |
Hot stars in external galaxies beyond the Magellanic Clouds: observations of supergiants in M33 and M31
Session 76 -- Spirals I
Display presentation, Wednesday, 11, 1995, 9:20am - 6:30pm
## [76.05] Hot stars in external galaxies beyond the Magellanic Clouds: observations of supergiants in M33 and M31
L.Bianchi, R.Boh... | {} |
Unique equilibrium states
# Unique equilibrium states for flows and homeomorphisms with non-uniform structure
Vaughn Climenhaga and Daniel J. Thompson Department of Mathematics, University of Houston, Houston, Texas 77204 Department of Mathematics, The Ohio State University, 100 Math Tower, 231 West 18th Avenue, Co... | {} |
## Murty, Maruti Ram
Compute Distance To:
Author ID: murty.maruti-ram Published as: Murty, M. Ram; Murty, Maruti Ram; Ram Murty, M.; Ram Murty, Maruti; Murty, M. R. more...less Homepage: http://www.mast.queensu.ca/~murty/ External Links: MGP · Wikidata · GND · IdRef
Documents Indexed: 265 Publications since 1974, in... | {} |
Is there actualy any hi-res footage made with MARS rover?
1. Mar 26, 2009
SAZAR
Is there actualy any hi-res footage made with MARS rover??
All I see are computer animations, photos and low-res low-fps black&white clips.
Can anyone point to some link where any Mars rover recorded a hi-res video?
2. Mar 26, 2009
St... | {} |
# Times tables
• May 26th 2012, 09:54 AM
silverpen
Times tables
OK.... Crazy basic for this forum and i didn't really know where to put this question BUT....
I've recently been learning my times tables and i found this site useful for it - Math Trainer - Multiplication
i found the way it questioned really easy to us... | {} |
# A Strict Digital Sum
How many different positive integers exist between $$10^{6}$$ and $$10^{7}$$ the sum of whose digits is equal to 2?
× | {} |
# Alternatic Current Derivation
sandy.bridge
Hello all,
I'm trying to find the derivation for the alternating signal. For example,
let b=width of loop
a=length of loop
Hence,
$$ε=vLB=vaB=ωraB=\frac{1}{2}ωabB=\frac{1}{2}ωAB$$
I cannot seem to find the derivation of how one gets from this step, to the sinusoidal wavefo... | {} |
2k views
### Using a list of tuples in a pure function
I want to use a list of tuples within a function to make assignments. Say I want to make assignments of the form value[i,j] = val What I have is a list of ...
2k views
### Going full functional (Haskell style)
I'm trying to define some notation so that Mathemat... | {} |
# How to make a ResultSet Read/Write
I have a DRAW document and BASE document. The BASE document has tables that contain data which relates to different shapes in the DRAW document.
I have written a macro that will display data related to a selected shape and display it in a Dialog.
Clicking the "Cancel button on th... | {} |
# Math Help - Trigonometric Derivative Question that I'm getting wrong
1. ## Trigonometric Derivative Question that I'm getting wrong
I attached the question in black and the answer in red in the "question & answer.pdf" file. My work is attached in the "mywork.pdf" file.
Can someone point out what I am doing wrong a... | {} |
# How do protons identify an atom?
Jan 1, 2018
The number of protons gives ${Z}_{\text{atomic number}}$......the which unequivocally identifies the given atom.....
#### Explanation:
$Z$ is the so-called $\text{atomic number}$, the which gives the identity of the of the element. $Z = 1$, the element is hydrogen; $Z ... | {} |
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clipboard
## G = C40⋊21(C2×C4) order 320 = 26·5
### 11st semidirect product of C40 and C2×C4 acting via C2×C4/C2=C22
Series: Derived Chief Lower central Upper central
Derived series C1 — C20 — C40⋊21(C2×C4)
Chief series C1 — C5 — C10 — C2×C10 — C2×C20 — C2×D20 — C2×C40⋊C2 — C40⋊21(C2×C4)
Lower central... | {} |
Performs different approaches for network-based source estimation: effective distance median, recursive backtracking, and centrality-based source estimation. Additionally, we provide public transportation network data as well as methods for data preparation, source estimation performance analysis and visualization.
##... | {} |
Sárközy's Theorem
A partial solution to the Erdös Squarefree Conjecture which states that the Binomial Coefficient is never Squarefree for all sufficiently large . Sárközy (1985) showed that if is the square part of the Binomial Coefficient , then
where is the Riemann Zeta Function. An upper bound on of has been obta... | {} |
# Statistical inference¶
The procedure of drawing conclusions about model parameters from randomly distributed data is known as statistical inference. This section explains the mathematical theory behind statistical inference. If you are already familiar with this subject feel free to skip to the next section.
## Gen... | {} |
工程科学与技术 2019, Vol. 51 Issue (1): 52-59
1. 北京林业大学 水土保持学院 重庆缙云山三峡库区森林生态系统国家定位观测研究站，北京 100083;
2. 北京市水土保持工程技术研究中心，北京 100083
Characteristics of Horseshoe Vortex Upstream of the Cylinder in Shallow Water with Low Cylinder Reynolds Number
YANG Pingping1, ZHANG Huilan1,2, WANG Yunqi1,2, WANG Yujie1,2
1. Jinyun Forest Ecos... | {} |
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## G = C8×M4(2) order 128 = 27
### Direct product of C8 and M4(2)
direct product, p-group, metabelian, nilpotent (class 2), monomial
Series: Derived Chief Lower central Upper central Jennings
Derived series C1 — C2 — C8×M4(2)
Chief series C1 — C2 — C22 — C2×C4 — C42 — C2×C42 — C2×C4×C8 — C8×... | {} |
## Domaine de Mortiès [in the New York Times]
Posted in Mountains, Travel, Wines with tags , , , , , , , , , , , , , on March 7, 2015 by xi'an
“I’m not sure how we found Domaine de Mortiès, an organic winery at the foothills of Pic St. Loup, but it was the kind of unplanned, delightful discovery our previous trips to... | {} |
declarative-0.5.4: DIY Markov Chains.
Copyright (c) 2015 Jared Tobin MIT Jared Tobin unstable ghc None Haskell2010
Numeric.MCMC
Contents
Description
This module presents a simple combinator language for Markov transition operators that are useful in MCMC.
Any transition operators sharing the same stationary distri... | {} |
# Math Help - Proportions
1. ## Proportions
I just wanted to make sure I got this problem correctly http://img109.imageshack.us/img109/7831/91757261.png
I got x = 5 did I do this one correctly?
Also I need help on a problem that looks like this http://img109.imageshack.us/img109/7831/91757261.png
I don't know how t... | {} |
# Given $E:N\to M$ an embedding and $V,W\in \mathfrak{X}(M)$ tangent to $N$, we claim that the commutator of $V$ and $W$ is also tangent to $N$.
I have encounter some difficulties while looking at an exercise online. It basically goes as follows:
Given $$E:N\to M$$ an embedding and $$V,W\in \mathfrak{X}(M)$$ tangent ... | {} |
# how to connect these antennas wirelesslly?
I know the qustion in little strange, but i need to connect between these three antennas by wireless channel (with distance d as a name) and (what is the possible options) also whats is the possible options for antennas or nodes (another shape in latex). so i can put it in ... | {} |
# update
Update posterior parameter distribution of degradation remaining useful life model
## Description
example
update(mdl,data) updates the posterior estimate of the parameters of the degradation remaining useful life (RUL) model mdl using the latest degradation measurements in data.
## Examples
collapse all
... | {} |
# Tag Info
3
Circulation may be controlled via either air blown through spanwise slots or horizontal-axis rotors, alone or in combination. Experiments on wing systems go back at least as far as 1902 and since then almost every variation imaginable has been tried. The problems come in the engineering implementation. W... | {} |
### magnetic field uniform
(PDF) Spherical coils for uniform magnetic fields, The design of a spherical coil system to produce a region of uniform magnetic field is discussed The construction of a set of spherical coils is described, and it is shown that a field uniformity ,magnetic fields and forces, A beam of protons... | {} |
# Math 120
Hi Matthew, let's see if this test works: Here's some random latex code: ${\displaystyle f(x)=\left(x^{3}-2x\right)^{3},f^{\prime \prime }(1)}$ test changes | {} |
Skip to content
Template for SIAM Journals
Author
License
Other (as stated in the work)
AbstractThis is the template for SIAM journals, downloaded from SIAM homepage on 14 March, 2018. | {} |
?
Free Version
Easy
# Finding the Slope of a Line
SATSTM-HVEQEX
What is the slope of the following linear equation?
$$6x-3y=4$$
A
$6$
B
$-2$
C
$2$
D
$-3$
E
$0.5$ | {} |
# Print a Lego piece
This challenge is a simple one. Given two inputs, describing the height and width of a Lego piece, you have print an ASCII art representation of it.
Here is how the Lego pieces are supposed to look:
(4, 2)
___________
| o o o o |
| o o o o |
-----------
(8, 2)
___________________
| o o o o o ... | {} |
Viser spørgsmål med mærket: Vis alle spørgsmål
• Løst
• Arkiveret
## PR_CONNECT_RESET_ERROR
Can't connect to websites
Stillet af linda28 for for 11 måneder siden
Besvaret af FredMcD for for 11 måneder siden
• Løst
• Arkiveret
## This video file cannot be played.(Error Code: 232011) Firefox help gives no specific ... | {} |
• Universal Sound Diffusion in a Strongly Interacting Fermi Gas (12/4/2020)
Science 370, 1222-1226 (2020)
10.1126/science.aaz5756
arXiv:1909.02555
BBC Radio 4:
Radio podcasts: WGBH Radio
Transport of strongly interacting fermions governs modern materials — from the high-Tc cuprates to bilayer graphene –, but also... | {} |
# Confused by how to derive the derivative of $f(\boldsymbol{x})=g(\boldsymbol{y})$
I was watching an online tutorial and saw this derivation.
It seems the the author took the derivative with respect to y on left side and to x on right side. I thought dx should always be in the denominator and should on both side of ... | {} |
1. Logarithm Urgent
Solve, correct to 3 significant figures, the equation
e^x + e^2x = e^3x
2. $\begin{gathered}
e^x \left( {e^{2x} - e^x - 1} \right) = 0 \hfill \\
z \equiv e^x \hfill \\
\Rightarrow z\left( {z^2 - z - 1} \right) = 0 \hfill \\
\end{gathered}$
now solve the quadratic equation and back substitute for ... | {} |
# Mechanism to get 10 pseudo-random positive numbers up to maximum from a seed (32-byte hash)?
I have learned new crypto words, so I rewrote the question:
I have quite random 32-byte hash which I want to use as a seed for generation of 10 pseudo-random positive numbers up to some maximum number, the generation must b... | {} |
## Tuesday, March 19, 2013
### Planck rumours will soon become Planck results
On Thursday, the Planck satellite will be revealing its first cosmological results. In terms of fundamental physics, this will be the biggest event since the Higgs discovery last year. In the cosmology community it is the biggest event for ... | {} |
# Laplace's equation in spherical coordinates with Neumann b.c
I am trying to find the temperature field in a semi-infinite solid on whose surface there is an isotherm spherical cap sunken by a length p. For example:
R = 10;
p = 3;
SphericalPlot3D[
1/2 (Sqrt[2] Sqrt[Cos[2 θ] (R - p)^2 + 2 p R + R^2 - p^2] +
2 Cos[θ] ... | {} |
# Hamiltonian for a 1D spin chain [closed]
I am trying to implement the Lanczos algorithm to tridiagonalize the Hamiltonian for a 1D spin chain of length $$L$$, but I am unable to decipher from my professor's notes (here's a link), what the action the Hamiltonian has on a random vector (or for that matter what the Ham... | {} |
# DNS simulation in industry
I have this idea in my mind that Direct Numerical Simulation (DNS) is only used in research since the Reynolds numbers of industrial applications are too high and require computer horsepower we don't have yet. Is that still true nowadays?
Any reference on the subject?
• To the best of my... | {} |
Journal topic
Mech. Sci., 10, 575–587, 2019
https://doi.org/10.5194/ms-10-575-2019
Mech. Sci., 10, 575–587, 2019
https://doi.org/10.5194/ms-10-575-2019
Research article 04 Dec 2019
Research article | 04 Dec 2019
# Rapid attitude maneuver of the space tether net capture system using active disturbance rejection contr... | {} |
### Cyclic dependencies (a note from Hacker News)
In response to a comment by bob1029 on Hacker News, which ran as follows.
Language constraints aside, the real world is not something that can be cleanly modeled without the notion of circular dependencies between things. Not very many real, practical activities can b... | {} |
# Re: [tlaplus] VIEW for Structure variable
Hunnn, thanks, Markus o/
Everyday is day to learn something about TLC.
On Thu, Jun 10, 2021, 1:32 AM Markus Kuppe <tlaplus-google-group@xxxxxxxxxxx> wrote:
On 09.06.21 21:04, pfeod...@xxxxxxxxx wrote:
>
> In TLC, we have the VIEW config where you choose which variables ar... | {} |
# Trigonometry! #72
Geometry Level 4
The solution set of $|4\sin (x) - 1| < \sqrt {5}$ for $$|x|<\pi$$ is
Options:
1. $$\left(-\pi,-\frac {4\pi}{5} \right)\cup\left(-\frac {\pi}{5} , \frac {\pi}{10} \right) \cup \left( \frac {9\pi}{10} , \pi\right)$$
2. $$\left(-\frac {9\pi}{10}, -\frac {\pi}{10}\right) \cup \left... | {} |
Translate equations to R
by Damir Cavar (March 2010)
In this section we will take a look at how to translate some typical equation into R. Let us start with the formula for variance:
The LaTeX code for the equation is: S^2_{N-1}=\frac{1}{N-1}\sum_{i=1}^N{(x_i - \bar{x})^2}
What this formula says is the following:
a... | {} |
New Zealand
Level 8 - NCEA Level 3
# Graphing Ellipses
## Interactive practice questions
Sketch the graph of the equation $\frac{x^2}{25}+\frac{y^2}{16}=1$x225+y216=1
Easy
Less than a minute
Sketch the graph of the equation $9x^2+16y^2=144$9x2+16y2=144.
Use a graphing utility to sketch the graph of the ellipse $1... | {} |
Pythagoras: a^2+b^2=c^2 which is the same as:
4n^4+8n^3+8n^2+4n+1 = 4n^4+8n^3+8n^2+4n+1
Now use Quadtratic Equations to proove that this is true
(2n^2+2n+1)^2 = (2n^2+2n+1)^2.
It must end as the equation above
Can someone talk me through all the steps plz
2. Originally Posted by SeaN187
4n^4+8n^3+8n^2+4n+1 = 4n^4+8n^3... | {} |
# 21.4 Transmutation and nuclear energy (Page 7/26)
Page 7 / 26
The energy produced by a reactor fueled with enriched uranium results from the fission of uranium as well as from the fission of plutonium produced as the reactor operates. As discussed previously, the plutonium forms from the combination of neutrons a... | {} |
# Fundamental frequency in the Fourier series of heat equation.
For a function $$f(x)$$ where $$x\in[0,1]$$, the Fourier series has a fundamental frequency of $$2\pi$$. But I noticed that in the Fourier series expansion of the solution of heat equation (with same domain and homogeneous boundary conditions), the fundam... | {} |
# 人脸检测
## code
# Face Detection Example
#
# This example shows off the built-in face detection feature of the OpenMV Cam.
#
# Face detection works by using the Haar Cascade feature detector on an image. A
# Haar Cascade is a series of simple area contrasts checks. For the built-in
# frontalface detector there are 25... | {} |
# Adversarial Risk Bounds for Binary Classification via Function Transformation
We derive new bounds for a notion of adversarial risk, characterizing the robustness of binary classifiers. Specifically, we study the cases of linear classifiers and neural network classifiers, and introduce transformations with the prope... | {} |
Uniqueness of Meromorphic Functions Concerning the Difference Polynomials
• Journal title : Kyungpook mathematical journal
• Volume 55, Issue 2, 2015, pp.411-427
• Publisher : Department of Mathematics, Kyungpook National University
• DOI : 10.5666/KMJ.2015.55.2.411
Title & Authors
Uniqueness of Meromorphic Functions... | {} |
# Grams to Tablespoons Calculator
Created by Hanna Pamuła, PhD candidate
Reviewed by Bogna Szyk and Jack Bowater
Last updated: Oct 07, 2022
If you're struggling with grams and tbsp conversion, look no further - this grams to tablespoons calculator has everything you could ever need when dealing with simple cooking me... | {} |
# American Institute of Mathematical Sciences
November 2013, 18(9): 2267-2282. doi: 10.3934/dcdsb.2013.18.2267
## Evolutionary branching patterns in predator-prey structured populations
1 Department of Mathematical Sciences, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino
Received November 2012 ... | {} |
# [SOLVED]energy equation
#### dwsmith
##### Well-known member
How does one use the energy equation to determine the type of orbit?
$$E = \frac{v^2}{2} - \frac{\mu}{r}$$
where $\mu = G(m_1+m_2)$ and
$$\mathbf{r} = \begin{pmatrix} -4069.503\\ 2861.786\\ 4483.608 \end{pmatrix}\text{km},\quad \mathbf{v} = \begin{pmatrix... | {} |
ISSN 0439-755X
CN 11-1911/B
Acta Psychologica Sinica ›› 2017, Vol. 49 ›› Issue (5): 590-601.
Does irrelevant long-term memory representation guide the deployment of visual attention?
HU Cenlou; ZHANG Bao; HUANG Sai
1. (Department of Psychology / The Key Laboratory for Juveniles Mental Health and Educational Neurosc... | {} |
# 429. N-ary Tree Level Order Traversal
Reference: LeetCode
Difficulty: Easy
## Problem
Given an n-ary tree, return the level order traversal of its nodes’ values. (ie, from left to right, level by level).
Example:
Note:
• The depth of the tree is at most 1000.
• The total number of nodes is at most 5000.
## Ana... | {} |
# Divisibility by seven
Given number n, whose decimal representation contains digits only $1, 6, 8, 9$. Rearrange the digits in its decimal representation so that the resulting number will be divisible by 7.
If number is m digited after rearrangement it should be still $m$ digited.
If not possible then i need to tel... | {} |
# Lesson 9
Applying Area of Circles
### Problem 1
A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape?
### Solution
For access, consult one of our IM Certified Partners.
### Problem 2
Find the area of the shaded region. Express your answer in ... | {} |
# Delimiting a species’ geographic range using posterior sampling and computational geometry
## Abstract
Accurate delimitation of the geographic range of a species is important for control of biological invasions, conservation of threatened species, and understanding species range dynamics under environmental change.... | {} |
What is the equation of the parabola with a focus at (-1,-4) and a directrix of y= -7?
Jul 26, 2016
$6 y = {x}^{2} + 2 x - 32$.
Explanation:
Let the Focus be $S \left(- 1 , - 4\right)$ and, let the Directrix be $d : y + 7 = 0$.
By the Focus-Directrix Property of Parabola, we know that, for any pt. $P \left(x , y\r... | {} |
# Ellipse|Definition & Meaning
## Definition
A regular oval shape called an ellipse can be created by a point moving in a plane in a way that the summation of its distances from the foci remains constant or by cutting a cone with an oblique plane that does not cross its base.
Ellipse is a conic section component wit... | {} |
### Principia Reissue Kickstarter
Spanish independent publisher Kronecker Wallis is making a new edition of Isaac Newton’s Principia Mathematicia, using a Kickstarter campaign to fund the initial print run. Here’s their video:
It looks like it’ll be a fairly pretty object, and they’ve put a lot of time and thought in... | {} |
# CNC Milling of balsa?
### Help Support The Rocketry Forum:
#### shockwaveriderz
##### Well-Known Member
Does anybody have any idea how much it would cost to have some boost glider solid balsa wings cnc milled such that the airfoil is preformed into the wing? in small quantties?
any information will be appreciated... | {} |
HyperPhysics****HyperMath*****Algebra: R Nave: Go Back: Complex Conjugate. [3] 9. In mathematics, the conjugate transpose (or Hermitian transpose) of an m-by-n matrix with complex entries, is the n-by-m matrix obtained from by taking the transpose and then taking the complex conjugate of each entry (the complex conjuga... | {} |
Determining the minimal polynomial
How do you find the minimal polynomial, $\mu_{M^{-1}}(x)$ given $\mu_{M}(x)$? My guess is since if $\lambda$ is an eigenvalue of $M$, then $1\over \lambda$ is an eigenvalue of $M^{-1}$, we might have something like $\mu_{M^{-1}}(x)=\mu_{M}({1\over x})$? But then I am not sure that th... | {} |
Posted on
## Cross-site Request Forgery
Cross-site request forgery, also known as CSRF, is a vulnerability whereby an application accepts a form request without validating its origin.
This is also sometimes known as session riding (note that the word riding is used instead of hijacking). It is a different vulnerabil... | {} |
Over the past several years, many have discussed a possible “bubble” in private equity. This post explores publicly-traded private equity firms and their valuations.
Companies of Interest
Given available data, it is easiest to consider the 4 largest publicly traded private equity firms:
\begin{align*} \begin{array}{c... | {} |
# Unipolar arcing
Unipolar arcing is a phenomenon which may occur in plasma/fusion devices between the plasma and the cathode. This cathodic process features localized, bright, tiny spots on the cathode surface, which appear to move more or less randomly. At these spots, the cathode material makes a transition into de... | {} |
# Tag Info
### Counterexamples in algebra?
A very basic one: Over the field of two elements, the symmetric matrix $\left(\begin{matrix}1&1\\1&1\end{matrix}\right)$ is nilpotent and thus not diagonalizable.
### Counterexamples in algebra?
If $x$ and $y$ are elements of an associative ring such that $xy\ne1=yx$ then ... | {} |
# Thread: Ordinary Annuities and Annuities help
1. ## Ordinary Annuities and Annuities help
Could you plz show me how the formula for these problems work
R=1400 10% per year compounded quarterly for 8 years
Answer in the back of the book: 1st part $67,410.39 2nd part:$22,610.39
R=$800, 9% per year compounded monthl... | {} |
# warning about pdfpages with hyperref
Package pageslts prints out this warning since I use pdfpages and hyperref in the same document.
Package pageslts Warning: Package pdfpages detected. (pageslts) Using hyperref with pdfpages can cause problems. See (pageslts) ftp://ftp.ctan.org/tex-archive/ (pageslts) macros/late... | {} |
Isola
Tag(s):
## Easy-Medium
Problem
Editorial
Analytics
Isola is a two-player board game. It is played on a 7x7 grid which is initially filled with squares on each cell. Both players have one piece; it is in the middle position of the row closest to his/her side of the board. Players can place their piece on squares... | {} |
# What is a command line argument in C language?
An executable instruction that performs a task for OS is called a command. These commands are issued from the prompt of OS.
The arguments that are associated with the commands are as follows −
• argc - argument count.
• argv - argument vector.
argc − It holds the to... | {} |
He is the amount of matter in an object. He is the amount of matter in an object. Current worldwide lighting practices might be creating this very scenario. (1981) Fast atom bombardment of solids as an ion source in mass spectroscopy. Gravitational mass - Gravitational mass is a measurement of how much gravity an objec... | {} |
# Difference between revisions of "Subadditive function"
A real function $f$ with the property $$f(x+y) \le f(x) + f(y) \ .$$
A subadditive set function is a function $f$ on a collections of subset of a set $X$ with the property that $$f(A \cup B) \le f(A) + f(B) \ .$$ A set function is $\sigma$-subadditive or countab... | {} |
Hamiltonian Cycles in Prisms (1986, 2012)
Originators: Moshe Rosenfeld (presented by Douglas West - REGS 2012)
Definitions: The prism over a graph $G$ is the cartesian product graph $G\Box K_2$. A graph is Hamiltonian if it has a spanning cycle, and $G$ is prism-Hamiltonian if the prism over $G$ is Hamiltonian.
B... | {} |
# Existence of a specific reordering bijection
Please consider a bijection $g:\mathbb{N}\rightarrow\mathbb{N}$ with following properties:
1. For all real series $(a_n)_{n\geq1}$, convergence of $\sum_{n=1}^{\infty}a_n$ implies convergence of $\sum_{n=1}^{\infty}a_{g(n)}$
2. Exist at least one real series $(c_n)_{c\g... | {} |
# Modeling Pandemics (3)
In Statistical Inference in a Stochastic Epidemic SEIR Model with Control Intervention, a more complex model than the one we’ve seen yesterday was considered (and is called the SEIR model). Consider a population of size $N$, and assume that $S$ is the number of susceptible, $E$ the number of e... | {} |
# Math Insight
### Applet: A parametrized helicoid
The function $\dlsp(\spfv,\spsv) = (\spfv\cos \spsv, \spfv\sin \spsv, \spsv)$ parametrizes a helicoid when $0 \le \spfv \le 1$ and $0 \le \spsv \le 2\pi$. You can drag the cyan and magenta points on the sliders to change the values of $\spfv$ and $\spsv$. Or, you can... | {} |
## Advanced Studies in Pure Mathematics
### Non-Collision and Collision Properties of Dyson's Model in Infinite Dimension and Other Stochastic Dynamics Whose Equilibrium States are Determinantal Random Point Fields
#### Abstract
Dyson's model on interacting Brownian particles is a stochastic dynamics consisting of a... | {} |
# $0$-th moment of product of gaussian and sinc function
I would like to calculate the following integrals:
1. $$\int_{-\infty}^{+\infty} \quad \left(\frac{\sin(\pi a x)}{\pi ax}\right)^2\quad \exp(-bx^2)\,dx$$
2. $$\int_{-\infty}^{+\infty} \quad \left(\frac{\sin(\pi a x\pm\pi)}{\pi ax\pm\pi}\right)^2\quad \exp(-bx^... | {} |
# Re: Problem with Icon overlays
From: Andy Levy <andy.levy_at_gmail.com>
Date: Thu, 16 Oct 2008 12:05:12 -0400
On Thu, Oct 16, 2008 at 11:46, Carrow, Amanda R
<amanda.r.carrow_at_lmco.com> wrote:
> I have my working copy on a network drive. I tried creating a working copy on my local machine and it works fine.
>
> T... | {} |
## The slicing problems for sections of proportional dimensions
Series:
School of Mathematics Colloquium
Thursday, April 14, 2016 - 11:05
1 hour (actually 50 minutes)
Location:
Skiles 006
,
University of Missouri, Columbia
,
Organizer:
We consider the following problem. Does there exist an absolute constant C such tha... | {} |
# NavList:
## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
### Compose Your Message
Message:αβγ
Message:abc
Add Images & Files Posting Code: Name: Email:
Re: Logarithms by Hand
From: Frank Reed
Date: 2014 Jun 6, 16:09 -0700
There's one oth... | {} |
How this Generator Work
RRITESH KAKKAR
Joined Jun 29, 2010
2,829
Hello,
I have seen this generator many times outside building, banks etc as an electrical engineer i have no idea how this work?
do you know ow to use it and what component are there in it?
R!f@@
Joined Apr 2, 2009
9,751
It's a backup generator.
A die... | {} |
# Chapter 10 - Section 10.2 - Graphs of Linear Equations and Slope - Exercises - Page 450: 11f
$\frac{-b}{a}$
#### Work Step by Step
(a,0) and (0,b) x1=a, y1=0,x2=0,y2=b Using slope formula m = $\frac{y2-y1}{x2-x1}$ m= $\frac{b-0}{0-a}$ = $\frac{-b}{a}$
After you claim an answer you’ll have 24 hours to send in a dr... | {} |
# An Inequality with Absolute Values
### Proof 1
Since $a\in (-1,1),\;$ $a^2\lt 1,\;$ $1-a^2\gt 0,\;$ $\displaystyle \frac{1}{1-a^2}\gt 0.\;$ Similarly, $\displaystyle \frac{1}{1-b^2}\gt 0.\;$
By the AM-GM inequality,
(1)
$\displaystyle\frac{1}{1-a^2}+\frac{1}{1-b^2}\ge 2\sqrt{\frac{1}{1-a^2}\cdot\frac{1}{1-b^2}}.... | {} |
Department of
# Mathematics
Seminar Calendar
for events the day of Friday, September 6, 2013.
.
events for the
events containing
More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery.
August 2013 September 2013 O... | {} |
Preferred stock returns Bruner Aeronautics has perpetual preferred stock outstanding with a par value of $100. The stock pays a quarterly dividend of$2 and its current price is $80. a. What is the stock’s value? b. What is its effective annual rate of return Comments • Anonymous commented rate it ## Answers (3) • a. Th... | {} |
# Geostat2016 Albacete: a write-up
Last week I went to GEOSTAT 2016. Given the amount of fun had at GEOSTAT 2015, expectations were high. The local organisers did not disappoint, with a week of lectures, workshops, spatial data competitions and of course lots of Geostatistics. It would be unwise to try to systematical... | {} |
# Venturi Effect
When a fluid flows through a constricted section of a pipe, the pressure decreases. This can be explained by invoking the equation of continuity and Bernoulli's theorem. The Bernoulli equation describes the relationship between velocity and pressure: \begin{align} p_{1}-p_{2}={\frac {\rho }{2}}\left(v... | {} |
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