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College of Arts and Sciences
# Archived BC Mathematics Seminars
## department of mathematics
### 2012-2013 Seminars and Colloquia
#### BC-MIT Number Theory Seminar
October 16, 2012 at BC 9 Lake Street, room 100 Directions Jeff Hoffstein (Brown University) Title: Multiple Dirichlet series and shifted convolutions,... | {} |
# Projection method (fluid dynamics)
The projection method is an effective means of numerically solving time-dependent incompressible fluid-flow problems. It was originally introduced by Alexandre Chorin in 1967 [1] [2] as an efficient means of solving the incompressible Navier-Stokes equations. The key advantage of t... | {} |
# Math Help - Product Rule Question
1. ## Product Rule Question
Utilize the product rule and sum rule to answer the following question...
How many subsets of a set with 100 elements have more than one element?
2. Originally Posted by fusion1455
Utilize the product rule and sum rule to answer the following question.... | {} |
Home When using VBA to open a CSV file directly from internet explorer, I cant then Interact with the file.
# When using VBA to open a CSV file directly from internet explorer, I cant then Interact with the file.
Christian T
1#
Christian T Published in 2018-02-14 12:56:09Z
So I have written some code to download ana... | {} |
Address 1114 Texas Palmyra Hwy, Honesdale, PA 18431 (570) 253-2949
noise due to quantization error Cochecton Center, New York
Putting the two measurements together would suggest that it's probably between 52" and 54". The analysis of quantization involves studying the amount of data (typically measured in digits or b... | {} |
A note on the accuracy of symmetric eigenreduction algorithms
K. Veselić
Abstract
We present some experimental results illustrating the fact that on highly ill–conditioned Hermitian matrices the relative accuracy of computed small eigenvalues by QR eigenreduction may drastically depend on the initial permutation of ... | {} |
# Colored mainfont with fontspec in a textblock yields to pdf error with LuaLaTex [closed]
When I (1) change the color of the mainfont with the fontspec package, (2) put some text in a textblock environment and (3) compile the document with LuaLaTex, the resulting pdf when opened with Adobe Reader 9 displays the follo... | {} |
# In the circuit used for measuring resistance (shown below), readings of ammeter and voltmeter are 2 A and 200 V. The ammeter and voltmeter resistances are 0.1 Ω and 2000 Ω respectively. The error in the calculated value of resistance (voltmeter reading / ammeter reading) is-
This question was previously asked in
DSS... | {} |
# Single Slit Diffraction and Monochromatic light
jones268
Monochromatic light with a wavelength of 419 nm passes through a single slit and falls on a screen 88 cm away. If the distance of the first-order dark band is 0.29 cm from the center of the pattern, what is the width of the slit?
My knowns are as follows:
L= ... | {} |
# V. V. Sharko
Search this author in Google Scholar
Articles: 5
### Topological equivalence to a projection
Methods Funct. Anal. Topology 21 (2015), no. 1, 3-5
We present a necessary and sufficient condition for a continuous function on a plane to be topologically equivalent to a projection onto one of the coordin... | {} |
#### Vol. 12, No. 7, 2019
Recent Issues
The Journal About the Journal Editorial Board Editors’ Interests Subscriptions Submission Guidelines Submission Form Policies for Authors Ethics Statement ISSN: 1944-4184 (e-only) ISSN: 1944-4176 (print) Author Index Coming Soon Other MSP Journals
Sign pattern matrices that al... | {} |
# Homework Help: A question about limit of a continuous function
1. May 21, 2012
### mike1988
I am trying to solve a question and I need to justify a line in which |lim(x-->0)(f(x))|≤lim(x-->0)|f(x)| where f is a continuous function.
Any help?
2. May 21, 2012
### micromass
The absolute value is a continuous func... | {} |
## Abstract and Applied Analysis
### Discussion on Generalized-(αψ, β$\phi$)-Contractive Mappings via Generalized Altering Distance Function and Related Fixed Point Theorems
#### Abstract
We extend the notion of (α ψ, β $\phi$)-contractive mapping, a very recent concept by Berzig and Karapinar. This allows us to con... | {} |
LoggingInterface.hh 6.88 KB
Jan Möbius committed Aug 05, 2009 1 /*===========================================================================*\ Jan Möbius committed Nov 25, 2010 2 3 * * * OpenFlipper * Jan Möbius committed Jan 26, 2011 4 * Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen * Jan Möbius... | {} |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 12 Dec 2019, 09:36
### 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... | {} |
CAT Practice : Percents, Profits
Three Wokers
Burger Competition
Q.33: A, B and C participated in a burger eating competition. A beat C by 18 burgers. A also beat B by eating 50% more burger than B. Also B had eaten 5 percentage points more burger than C. Find the overall number if burgers that were eaten.
1. 90 bur... | {} |
## Significance of hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
Emily Glaser 1F
Posts: 156
Joined: Thu Jul 27, 2017 3:01 am
### Significance of hybridization
I understand how to find the hybridization of an atom in a compound, but I don't understand the significance of this concept. Why can Carbon be bo... | {} |
# Let's check divisibility
Number Theory Level 4
Fine the number of 7-digit integers of the form $$\overline{30a0b03}$$ (where $$a,b$$ are digits), which are divisible by 13.
× | {} |
# Let X be a discrete random variable that takes on the values 1, 2, 3, 4, and 5. Assume that f is the
Let X be a discrete random variable that takes on the values 1, 2, 3, 4, and 5. Assume that f is the probability mass function of X. Given that f(1)=0.1, f(2)=0.2, f(3)=0.3, and f(4)=0.1, what is the value of f(5)?
D... | {} |
# ToricVectorBundle ** ToricVectorBundle -- the tensor product of two toric vector bundles
## Description
If $E_1$ and $E_2$ are defined over the same fan and in the same description, then tensor computes the tensor product of the two vector bundles in this description
i1 : E1 = toricVectorBundle(2,hirzebruchFan 3)... | {} |
# BBO Discussion Forums: The neutrinos from the future... - BBO Discussion Forums
• 4 Pages
• 1
• 2
• 3
• Last »
## The neutrinos from the future... Faster then c?
### #1akhare
• Posts: 1,261
• Joined: 2005-September-04
• Gender:Male
Posted 2011-September-22, 17:52
foobar on BBO
0
### #2whereagles
• Posts: 14,9... | {} |
# The vertices of a tetrahedron correspond to four alternating corners of a cube. By using analytical geometry, demonstrate that the angle made by connecting two of the vertices to a point at the center of the cube is 109.5^@, the characteristic angle for tetrahedral molecules.
The vertices of a tetrahedron correspond... | {} |
# GRE Subject Test: Math : Vectors & Spaces
## Example Questions
### Example Question #51 : Vectors & Spaces
What is the vector form of ?
Possible Answers:
Correct answer:
Explanation:
In order to derive the vector form, we must map the -coordinates to their corresponding , and coefficients.
That is, given , t... | {} |
Appendix Chapters typeset as Sections in ToC
I am very new to LaTeX and still more in a trial and error phase than on a real understanding level.
My goal is to have all appendices - which are chapters and I would like to keep it that way - to appear in the TOC as sections, under a 'chapter' appendices.
Here is what ... | {} |
# 2012 TC4
2012 TC4 is a tumbling micro-asteroid classified as a bright near-Earth object of the Apollo group, approximately 10 meters (30 feet) in diameter.[6][7][8] It was first observed by Pan-STARRS at Haleakala Observatory on the Hawaiian island of Maui, in the United States. As of 1 October 2017, it had a small ... | {} |
# Range Chmin Chmax Add Range Sum
AC一覧
## Problem Statement問題文
Given a size $N$ interger sequence $a_0, a_1, \dots, a _ {N - 1}$. Process the following $Q$ queries in order:
• 0 $l$ $r$ $b$: For each $i = l, \dots, {r-1}$, $a_i \gets \min(a_i, b)$
• 1 $l$ $r$ $b$: For each $i = l, \dots, {r-1}$, $a_i \gets \max(a_i... | {} |
# Re: SOFT HYPHEN
From: Markus Kuhn (Markus.Kuhn@cl.cam.ac.uk)
Date: Tue Nov 16 1999 - 08:42:40 EST
Klaus Weide wrote on 1999-11-10 12:27 UTC:
> I asume you are familiar with the dissenting treatise at
>
> http://www.hut.fi/~jkorpela/shy.html
I wasn't familiar with it, but a quick look at it tells me that I wish I
h... | {} |
### Author Topic: 9.3 problem 18 (Read 3692 times)
#### Brian Bi
• Moderator
• Full Member
• Posts: 31
• Karma: 13
##### 9.3 problem 18
« on: March 25, 2013, 12:32:43 AM »
I'm having some trouble getting this problem to work out. There are four critical points: (0,0), (2, 1), (-2, 1), and (-2, -4). At the critical p... | {} |
# Homework Help: Temperature and Heat
1. May 9, 2006
### superdave
A .1 kg piece of aluminum at 90 degrees C is submerged in 1 KG of water at 10 degrees C. What is the temperature when they reach equalibrium?
Now I know, aluminum has a c of 920 J/(kg * degree C) and water has a c of 4186 J/(kg * degree C).
I'm not... | {} |
How to center text blocks in memoir class under twoside/default option?
I'm using memoir class to write a book; the output is fine for the purpose of printing -- the text on odd pages being placed slightly to the left, and the text of the even pages being placed slightly to the right.
However, now I want each page to... | {} |
Q
# Carry out the following divisions -36 y^3 / 9 y^2
q1) Carry out the following divisions
ii)
$-36 y^3 \div 9 y^2$
Views
We have,
$-36$$y^{3}$ $= -1 \times 2 \times 2 \times 3 \times 3 \times y \times y \times y$
$9$$y^{2 }$ $= 3 \times 3 \times y \times y$
Therefore,
$\frac{-36y^{3}}{9y^{2}} = \frac {-1 \time... | {} |
# Continuous reactor
(Redirected from Continuous reactors)
Jump to: navigation, search
Continuous reactors (alternatively referred to as flow reactors) carry material as a flowing stream. Reactants are continuously fed into the reactor and emerge as continuous stream of product. Continuous reactors are used for a wid... | {} |
# What is the Sandbox?
This "Sandbox" is a place where Code Golf users can get feedback on prospective challenges they wish to post to the main page. This is useful because writing a clear and fully specified challenge on the first try can be difficult. There is a much better chance of your challenge being well receiv... | {} |
RSQLite::dbGetPreparedQuery() is deprecated in AnnotationForge
2
0
Entering edit mode
MOD • 0
@mod-12330
Last seen 5.2 years ago
Teagasc Dublin
Hi,
I'm trying to run create an annotation database for Agaricus bisporus through NCBI in AnnotationForge, but I get a couple of errors:
Error in makeOrgDbFromDataFrames(dat... | {} |
Please, try EDU on Codeforces! New educational section with videos, subtitles, texts, and problems. ×
### Egor.Lifar's blog
By Egor.Lifar, 13 months ago, translation, ,
Hi!
On Jun/01/2019 17:35 (Moscow time) we will host Codeforces Global Round 3.
It is the third round of a new series of Codeforces Global Rounds s... | {} |
Mach Number
Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers
Mach number, abbreviated as Ma, is a dimensionless number is the ratio of the velocity of flow to the velocity of sound.
$$\large{ Ma = \frac{v}{a} }$$ Where: $$\large{ Ma }$$ or $$\large{ M }$$ = Mach number $$\large{ a }$$ = spee... | {} |
Solving simultaneous modular congruences
Let $\{n_i\}_{i=1}^k$ be a set of pairwise relatively prime integers- that is, $\mathsf{gcd}(n_i,n_j) = 1$ whenever $i \neq j$.
1. Show that the Chinese Remainder Theorem implies that for any $\{a_i\}_{i=1}^k \subseteq \mathbb{Z}$, there is a solution $x \in \mathbb{Z}$ to the... | {} |
# sigwin.blackmanharris class
Package: sigwin
Construct Blackman-Harris window object
## Description
Note: The use of `sigwin.blackmanharris` is not recommended. Use `blackmanharris` instead.
`sigwin.blackmanharris` creates a handle to a Blackman-Harris window object for use in spectral analysis and FIR filteri... | {} |
# How do you write 9,364 in scientific notation?
May 10, 2016
#### Answer:
$9364 = 9.364 \times {10}^{3}$
#### Explanation:
Choose the exponent of $10$ so that when the mantissa is shifted that many places to the right, the resulting value lies in the range $\left[1.0 , 10\right)$.
In our example, we need to divi... | {} |
## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
Published by Pearson
# Chapter 1-2 - Cumulative Review - Page 152: 12
#### Answer
$t=9$
#### Work Step by Step
Using the properties of equality, the solution to the given equation, $\dfrac{2}{3}t+7=13$, is \begin{array}{l}\require{cance... | {} |
# Understanding the Iterative Algorithm in Data-Flow Analysis
This blog is aim to help you understand the iterative algorithm and the worklist algorithm, which are the foundation of data-flow analysis, and also the most confusing part for beginners (in this case, me). A lot of content in this blog was summarized from ... | {} |
### doreshnikov's blog
By doreshnikov, history, 4 weeks ago,
Hello Codeforces!
Once again, we are glad to invite you all to Codeforces Round #753 (Div. 3), the third division round held on Nov/02/2021 17:35 (Moscow time). This round was prepared (again) by me and MikeMirzayanov. The problems are different but our an... | {} |
# semidirect product between subgroup of general linear group and vector space in GAP
I am currently working on trying to get a solvable doubly transitive permutation group using GAP. So, I am trying to create the semidirect product of a subgroup of a general linear group and a vector space. Currently I am trying to w... | {} |
# Extra Border Around ID3DXSprite [SOLVED]
## Recommended Posts
Extra Border Around ID3DXSprite I'm trying to use ID3DXSprite in DirectX 9.0 to draw animated sprites. However, when I try and draw sprites from my texture, I get an odd black border around my sprites. When drawing normally, there is a black line at the ... | {} |
# How to "directly" obtain Maclaurin series of $\exp(x-1+\sqrt{x^2+1})$
Consider the Taylor expansion centered around $$x_0 = 0$$ for $$f(x) = e^{x-1 + \sqrt{x^2+1}} ~,\qquad x\in\mathbb{R}$$
The goal is to arrive at $$\sum c_k x^k$$ by hand, and I wonder if there is an efficient way to obtain the coefficients of eac... | {} |
# How to set batch_size, steps_per epoch and validation steps
I am starting to learn CNNs using Keras. I am using the theano backend.
I don't understand how to set values to:
• batch_size,
• steps per epoch,
• validation_steps.
What should be the value set to batch_size, steps per epoch, and validation steps if I h... | {} |
## Do we ever need to convert pressure?
Volume: $\Delta S = nR\ln \frac{V_{2}}{V_{1}}$
Temperature: $\Delta S = nC\ln \frac{T_{2}}{T_{1}}$
Wilson Yeh 1L
Posts: 42
Joined: Fri Sep 29, 2017 7:06 am
### Do we ever need to convert pressure?
Is there a standard unit of pressure for the equation $\Delta S = nRln\frac{P1}... | {} |
Goto Chapter: Top 1 2 3 4 5 6 A B C D E F Bib Ind
### F Overview of the MatricesForHomalg Package Source Code
#### F.1 Rings, Ring Maps, Matrices, Ring Relations
Filename .gd/.gi Content homalg definitions of the basic GAP4 categories and some tool functions (e.g. homalgMode) homalgTable dictionaries between Matric... | {} |
Introduction¶
This document is intended to be a core reference guide to the formats, naming convention and data quality flags used by the reference files for pipeline steps requiring them, and is not intended to be a detailed description of each of those pipeline steps. It also does not give details on pipeline steps ... | {} |
# Factor by difference of squares Calculator
## Get detailed solutions to your math problems with our Factor by difference of squares step-by-step calculator. Practice your math skills and learn step by step with our math solver. Check out all of our online calculators here!
Go!
1
2
3
4
5
6
7
8
9
0
x
y
(◻)
◻/◻
÷
2
e... | {} |
# How to interpret probability of a nonrepeating event?
I'm wondering about the meaning of ascribing probabilities to the outcomes of nonrepeating events. As a concrete example, here in the UK we're pollsters are currently predicting the result of the referendum on UK's membership in the European Union. They say thing... | {} |
# The Shortest Wavelength Of He + Ion In Balmer Series Is X, Then Longest Wavelength In The Paschene Series Of Li +2 Is:
The shortest wavelength of Helium ion in Balmer Series is X
$$\frac{1}{\lambda He} = R_{H}(\frac{1}{2^{2}} – \frac{1}{\infty ^{2}})2^{2}$$ $$\Rightarrow \frac{1}{\lambda He} = \frac{R_{H}}{4} * 4$$... | {} |
RUS ENG JOURNALS PEOPLE ORGANISATIONS CONFERENCES SEMINARS VIDEO LIBRARY PACKAGE AMSBIB
General information Latest issue Forthcoming papers Archive Impact factor Subscription Guidelines for authors License agreement Submit a manuscript Search papers Search references RSS Latest issue Current issues Archiv... | {} |
## College Algebra 7th Edition
a.$\quad$ x and y b.$\quad$ dependent c.$\quad$ $x=3+z,\ y=5-2z,\ z=$ any real number.
a. Leading variables correspond to leading entries in the reduced row-echelon form. x and y have a corresponding leading 1 in their correspoding columns, z does not. Answer: x and y. b. Since the last ... | {} |
Lemma 27.23.3. Let $X$ be a scheme. There exists a cardinal $\kappa$ such that every quasi-coherent module $\mathcal{F}$ is the directed colimit of its quasi-coherent $\kappa$-generated quasi-coherent subsheaves.
Proof. Choose an affine open covering $X = \bigcup _{i \in I} U_ i$. For each pair $i, j$ choose an affine... | {} |
# Calculus: Calculus, Volume 1: One-Variable Calculus with an Introduction to Linear Algebra
###### Tom M. Apostol
Publisher:
John Wiley
Publication Date:
1967
Number of Pages:
688
Format:
Hardcover
Edition:
2
Price:
145.95
ISBN:
0471000051
Category:
Textbook
BLL Rating:
The Basic Library List Committee considers thi... | {} |
## A Natural Limit Definition
Often, the first exposure one gets to rigorous mathematics is the definition of a limit. Let’s consider what this is for a sequence. We say $\lim_{n\rightarrow \infty} a_n = A$ if
$\displaystyle \forall \epsilon \in \mathbb{R}^+\quad\exists N \text{ s.t.}\quad\quad n > N \implies |a_n-A|... | {} |
On the stability of the coupling of 3D and 1D fluid-structure interaction models for blood flow simulations
ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 41 (2007) no. 4, pp. 743-769.
We consider the coupling between three-dimensional ($3$D) and one-dimensi... | {} |
Browse ORBi by ORBi project The Open Access movement
ORBi is a project of
Publications of Michaël Gillon Results 1-20 of 364. 1 2 3 4 5 6 7 8 9 10 A search for transiting planets around hot subdwarfs: I. Methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPSVan Grootel, Valérie ; Pozuel... | {} |
ln (phi) dalam Fungsi Hiperbolik
Bentuk lain $\ln (\phi)$ dalam fungsi hiperbolik, tepatnya pada inverse hyperbolic cosecant dari 2, atau inverse hyperbolic sine dari 1/2:
$\displaystyle \boxed {\ln(\phi)=\mathrm{csch}^{-1}(2)= \mathrm{sinh}^{-1}\left ( \frac{1}{2} \right )= 0.481211825....}$
Formula kunci kemuncula... | {} |
?
Free Version
Difficult
# Convergence of a Trigonometric Sum
APCALC-BJBCUE
For which values of $x$ on the interval $(0, \pi)$ will the series below converge?
$$\sum _{ n=1 }^{ \infty }{ ( \sin { x } ) ^{ n } }$$
A
$(0, \pi)$
B
$(0,\cfrac{\pi}{2})$ or $(\cfrac{\pi}{2},\pi)$
C
$(0, \cfrac{\pi}{2})$
D
$(\cfr... | {} |
# Atom Editor
### Combined Stream
47 thoughts
last posted Nov. 22, 2014, 12:43 a.m.
get stream as: markdown or atom
0
I'm encouraging people to share their thoughts here on Github's Atom Editor.
0
For this reason, we didn't build Atom as a traditional web application. Instead, Atom is a specialized variant of Chro... | {} |
## Appendix C: Compressed Image Formats
The compressed texture formats used by Vulkan are described in the specifically identified sections of the Khronos Data Format Specification, version 1.1.
Unless otherwise described, the quantities encoded in these compressed formats are treated as normalized, unsigned values.
... | {} |
#### Efficient Nonnegative Tucker Decompositions: Algorithms and Uniqueness
##### Guoxu Zhou, Andrzej Cichocki, Qibin Zhao, Shengli Xie
Nonnegative Tucker decomposition (NTD) is a powerful tool for the extraction of nonnegative parts-based and physically meaningful latent components from high-dimensional tensor data ... | {} |
# Principle of Superposition and Wronskian
Assume that $$p$$ and $$q$$ are continuous and that the functions $$y_1$$ and $$y_2$$ are solutions of the differential equation $$y''+p(t) y'+q(t)y=0$$ an open interval $$I$$. Prove that if $$y_1$$ and $$y_2$$ are zero at the same point in $$I$$, then they cannot be a fundam... | {} |
I feel really dumb, but I am stuck on this (changing direction of a sprite)
Recommended Posts
Hey, I am currently working on making a pong clone (for learning purposes). I have it to the point where both paddles and the ball are onscreen, both paddles can be controlled, and there are checks in place to make sure noth... | {} |
# when does cos^2x=sin^2x?
• Feb 4th 2010, 02:26 PM
Amberosia32
when does cos^2x=sin^2x?
when does cos^2 x=sin^2 x?
• Feb 4th 2010, 02:32 PM
Prove It
Quote:
Originally Posted by Amberosia32
when does cos^2 x=sin^2 x?
You should know from the Pythagorean Identity that
$\cos^2{x} + \sin^2{x} = 1$.
So $\cos^2{x} = 1 ... | {} |
# Profile Likelihood
November 16, 2015
By
(This article was first published on Freakonometrics » R-english, and kindly contributed to R-bloggers)
Consider some simulated data
```> set.seed(1)
> x=exp(rnorm(100))```
Assume that those data are observed i.id. random variables with distribution, with . The natural ide... | {} |
# familiar with IGBT? how to use it in a strobe flash circuit?
#### rwmoekoe
Joined Mar 1, 2007
172
Hi everyone
A common strobe flash circuit with brightess preset until now usually is using a fast thyristor (such as cr3jm) as the 'quenched' switch.
You may refer to the circuit here:
<------ (edited) the link doesn... | {} |
# Bounding $\liminf_{n} n |f^n(x)-x|$
I solved an exercise in which the first part asks to prove that for any measure preserving measurable transformation $f:[0,1]\rightarrow [0,1]$ we have $$\liminf_{n} n |f^n(x)-x| \leq 1, \ \mbox{a.e.}$$
I can't prove the second part of the exercise: Let $\omega=(\sqrt{5}-1)/2$ an... | {} |
Deepak Scored 45->99%ile with Bounce Back Crack Course. You can do it too!
# Solve each of the following quadratic equations:
Question:
Solve each of the following quadratic equations:
$100 x^{2}-20 x+1=0$
Solution:
We write, $-20 x=-10 x-10 x$ as $100 x^{2} \times 1=100 x^{2}=(-10 x) \times(-10 x)$
$\therefore ... | {} |
Browse Questions
The type of hybrid orbitals used by the chlorine atom in $ClO^{-}_2$ is
$(A)\;SP^3 \\ (B)\;SP^2 \\(C)\;SP \\(D)\;\text{none of these}$
We can calculate the number of orbitals involved in hybridisation by using the reaction.
Number of orbital involved in hybridisation by using the relation:
Number of... | {} |
## Bijective proofs
#### A fourth proof
Last month I described three proofs of the formula for the number of ways to choose k objects from a set of n, if repetition is allowed and order is not significant; it is the same as the number of choices of k objects from a set of n+k−1, with repetition not allowed but order ... | {} |
Notes on Introduction to Water | Grade 11 > Chemistry > Water | KULLABS.COM
## Introduction to Water (adsbygoogle = window.adsbygoogle || []).push({});
• Note
• Things to remember
### Water
Introduction to Water
Molecular formula = H2O
Molecular mass = 18
Melting point = 0°C
Boiling point = 100°C.
Water is a v... | {} |
# For the Following Inequation, Represent the Solution on a Number Line : (4
in General
For the following inequation, represent the solution on a number line :
$(4 - "x")/2 < 3$ , x R
by kratos
$(4 - "x")/2 < 3$ , x R | {} |
Algebra 1
$-4\frac{1}{12}\leq w\lt12\frac{1}{4}$
$-\frac{4}{3}\leq\frac{1}{7}w-\frac{3}{4}\lt1\longrightarrow$ using the addition property of inequality, add $\frac{3}{4}$ to each part $-\frac{4}{3}+\frac{3}{4}\leq\frac{1}{7}w-\frac{3}{4}+\frac{3}{4}\lt1+\frac{3}{4}\longrightarrow$ add $-\frac{7}{12}\leq\frac{1}{7}w\l... | {} |
# Homework Help: How is "cross sectional area" different from "area"?
1. Jan 11, 2006
### untitledm9
How is "cross sectional area" different from "area"?
I don't understand what cross sectional area is and there is no explanation about it in my textbook.I cannot find this anywhere and am really desperate right now.... | {} |
# Core Data code for manually creating a lot of entries from old ones
Does this looks ok to everyone?
NSFetchRequest *oldFetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *oldEntryEntity = [NSEntityDescription entityForName:@"Entry"
inManagedObjectContext:oldContext];
[oldFetchRequest setEntity:oldEn... | {} |
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... | {} |
# Scoping constructs in Wolfram Language
GROUPS:
NOTE: Please see the original version of this post and related discussion HERE. Cross-posted here per suggestion of Vitaliy Kaurov.
You will find a lot of information in this answer. I will add a few personal notes.
## Module
Use Module when you want to localize var... | {} |
# Math Help - Level Curves
1. ## Level Curves
Function: $z=f(x,y)=5-x^2-y^2$
How would you draw a contour plot and label the level curves for z=0, z=1, z=2, z=3, z=4, z=5? Also, how do you find out what the largest and smallest z-values are? Would the smallest be z=0 and the largest be z=5?
2. for the level curves z... | {} |
# BMI index
Calculate BMI (body mass index, an index indicating obesity, overweight, normal weight, underweight) man weighing m = 71 kg and height h = 170 cm. Index is calculated according to equation (formula):
$BMI=\frac{m}{{h}^{2}}$
With BMI index is possible to compare people of different heights in the followin... | {} |
# Question about the proof that 'A graph with maximum degree at most k is (k + 1) colorable
I'm trying to follow the MIT introductory mathematics for cs course.
In the reading on graph theory, the proof that a graph with maximum degree at most k is (k + 1) colorable is given as follows:
We use induction on the numbe... | {} |
Infoscience
Presentation / Talk
# Cognitive Architecture for Mutual Modelling
In social robotics, robots needs to be able to be understood by humans. Especially in collaborative tasks where they have to share mutual knowledge. For instance, in an educative scenario, learners share their knowledge and they must adapt... | {} |
Explain the following
1. ${\mathrm{CO}}_{2}$ is a better reducing agent below 710 K whereas CO is a better reducing agent above 710 K.
2. Generally sulphide ores are converted into oxides before reduction.
3. Silica is added to the sulphide ore of copper in the reverberatory furnace.
4. Carbon and hydrogen are ... | {} |
lw
# Plotter Control (obsolete)¶↑
lw()
Name:
lw - laser writer graphical output (or HP pen plotter)
Syntax:
h.lw(file)
h.lw(file, device)
h.lw()
Description:
h.lw(file, device) opens a file to keep a copy of subsequent plots (file is a string variable or a name enclosed in double quotes). All graphs which are ge... | {} |
# [ILUG] [OTish] Regex question...
Stephen Shirley diamond at csn.ul.ie
Mon Jan 7 18:01:52 GMT 2002
Mornin',
Say you were porting some files from dos to linux (woe is me),
and you wanted to run a searh+replace in vi (or sed, or awk or
*shudder* emacs) to convert
#include "foo\bar\apples.h"
to
#include "foo/bar/app... | {} |
# Circular motion
In physics, circular motion is movement with constant speed around in a circle: a circular path or a circular orbit. It is one of the simplest cases of accelerated motion. Circular motion involves acceleration of the moving object by a centripetal force which pulls the moving object towards the cente... | {} |
Equations with x in the Denominator
Here you’ll learn how to get rid of a denominator containing variables. The good news is that the approach is the same as with getting rid of a denominator with numbers! To find the common denominator, you multiply all the different factors once. Here’s two examples:
Example 1
Sol... | {} |
Mar 27, 2020
# Introduction
Rolling and re-rolling dice is our task for this week's Riddler Classic. Each time we roll, we replace the sides of the dice with the values of our previous roll. This makes for a tricky probability space, but a very fun Python class to write and some markov chain analysis to crunch in ord... | {} |
A rapid sand filter comprising a number of filter beds is required to produce $99$ MLD of potable water. Consider water loss during backwashing as $5\%$, rate of filtration as 6.0 m/h and length to width ratio of filter bed as $1.35$. The width of each filter bed is to be kept equal to $5.2$ m. One additional filter be... | {} |
## A Poisson Geometry Version of the Fukaya Category
Is there any possibility of a Poisson Geometry version of the Fukaya category? Given a Poisson manifold Y, objects could be manifolds with isolated singularities X which have the property that TX is contained in NX maximally. The naive example would be something lik... | {} |
### Theory:
Let us consider a group of social workers gathered at a place, and they planned to dig 100 pits to plant trees. If one person can dig one pit then,
If there are $$20$$ workers, they will take, $\frac{100}{20}$ $$=$$ 5 days.
If there are $$10$$ workers, they will take $$=$$ $\frac{100}{10}$ $$=$$ 10 days.... | {} |
# Execute Stage¶
Read time: 48 minutes (12014 words)
We have reached the point where we need to process some data. That all happens in the execute stage, and it can get complex. We have a bunch of instructions, each trying to manipulate some bits, and we have some components that can help do all of that. Specifically... | {} |
# Analytic method of vector addition
If two vectors display the results from two adjoining sides drawn from any point of a parallelogram in the direction of the result, then the result and direction, the parallelogram that is drawn by the diagonal has been drawn from the same point to add the vector Parallel quadratic... | {} |
# Local scale invariance without conformal anomaly
I need to know if conformal symmetry can be localized in the same manner that global symmetries like $$SU(2)$$ is localized and gauge bosons pop up?(I assume the trace anomaly doesn't violate the scale invariance symmetry)
If so what is the particle that appears afte... | {} |
Mathematical Innovation
The problem that was given by the ancient mathematician (ARCHIMEDES) concerning the squaring of the circle by using ruler and diabetes challenged me to take the time with it, just as many people did in the past.
This known and still (unsolved) problem it’s true that it has bothered for more 20... | {} |
Are there absolute reasons to prefer row/column-major memory ordering?
I've heard it said that "fortran uses column-major ordering because it's faster" but I'm not sure that's true. Certainly, matching column-major data to a column-major implementation will outperform a mixed setup, but I'm curious if there's any abso... | {} |
# Our Favourite Functions: Part I
Because we love functions!
Functions are rather important in maths. From the humble $y=$ constant to the exotic special functions, from straight lines to never-ending spirals, from those in one variable to those that live in multidimensional worlds, they’re pretty hard to escape. S... | {} |
# PoS(CHARM2016)005
Open charm physics with Heavy Ions: theoretical overview
A. Beraudo
Contribution: pdf
Abstract
The peculiar role of heavy-flavour observables in relativistic heavy-ion collisions is discussed. Produced in the early stage, $c$ and $b$ quarks cross the hot medium arising from the collision, inter... | {} |
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