arxiv_id stringlengths 0 16 | text stringlengths 10 1.65M |
|---|---|
The Grand Locus / Life for statistical sciences
the Blog
## Who understands the histone code?
The most annoying thing about us biologists is that we keep using words that we don’t understand. “Epigenetics” is one of those that has drawn my attention for several years, as I explained in my last post. I suggested that... | |
## twenty-four to nil
Another puzzling question on X validated, where the expectation of a random sum of deterministic vectors is to be computed. (That is, the sum involves a random number of terms.) Without enough detail to understand why this proves a difficulty, given that each deterministic vector is to be invoked... | |
# zbMATH — the first resource for mathematics
## Tanaka, Tamaki
Compute Distance To:
Author ID: tanaka.tamaki Published as: Tanaka, T.; Tanaka, Tamaki
Documents Indexed: 153 Publications since 1976, including 11 Books
all top 5
#### Co-Authors
14 single-authored 19 Yamada, Syuuji 14 Takahashi, Wataru 13 Tanino, ... | |
# pair_style spin/magelec command¶
## Syntax¶
pair_style spin/magelec cutoff
• cutoff = global cutoff pair (distance in metal units)
## Examples¶
pair_style spin/magelec 4.5
pair_coeff * * magelec 4.5 0.00109 1.0 1.0 1.0
## Description¶
Style spin/me computes a magneto-electric interaction between pairs of magn... | |
# How to define a listing example environment
I have read the listing manual document. I would like to use the lstsample environment.
It looks like below:
Basically, the output is on the left and the code is placed on the right.
But I don't find where this environment is defined. Is it easy to define a new environm... | |
# Sergei Yakovenko's blog: on Math and Teaching
## Wednesday, December 26, 2007
### “Auxiliary Lesson” שעור עזר)#10) December 27, 2007
Filed under: Analytic ODE course,lecture,links — Sergei Yakovenko @ 5:56
Because of the dismal failure to meet the schedule in Lesson 9, the next meeting will deal with the items fr... | |
# All Questions
25,326 questions
8k views
1k views
### Converse to Euclid's fifth postulate
There is a fascinating open problem in Riemannian Geometry which I would like to advertise here because I do not think that it is as well-known as it deserves to be. Euclid's famous fifth postulate, ...
2k views
### Why do ... | |
## Introduction
Resident tissue macrophages (RTM) are present in most mammalian tissues. Historically known for their roles in host defense and clearance of dead cells, RTM are now recognized as an integral part of the tissues in which they reside, where they can contribute to a wide range of physiological and patholo... | |
Trigonometry (11th Edition) Clone
$w\cdot z$ = $36(cos130^\circ + isin130^\circ)$
$w = 12(cos80^\circ + isin80^\circ) = 12cis80^\circ$ $z = 3(cos50^\circ + isin50^\circ) = 3cis50^\circ$ Now, $w\cdot z$ = $12cis80^\circ \cdot 3cis50^\circ$ = $12 \cdot 3 \cdot cis(80^\circ+ 50^\circ)$ (Product Theorem) = $36cis130^\circ... | |
Sensor Systems
Site Tools
theory:electrochemistry:electrochemistry
An Introduction to Electrochemistry
When connecting electrodes to liquids, tissue or biological materials, we create an interface between electronics and chemistry. In the electrodes and electronic equipment, charge is conducted by electrons, while ... | |
Volume 6, issue 5 (2006)
1 R G Burns, V W D Hale, A note on group rings of certain torsion-free groups, Canad. Math. Bull. 15 (1972) 441 MR0310046 2 I M Chiswell, P H Kropholler, Soluble right orderable groups are locally indicable, Canad. Math. Bull. 36 (1993) 22 MR1205890 3 É Ghys, Groups acting on the circle, Ense... | |
# Séminaires : Séminaire d'Algèbre
Equipe(s) : gr, Responsables : J. Alev, D. Hernandez, B. Keller, Th. Levasseur, et S. Morier-Genoud. Email des responsables : Jacques Alev , David Hernandez , Bernhard Keller , Thierry Levasseur , Sophie Morier-Genoud Salle : à distance / remote Adresse : IHP Description Depuis le 2... | |
Lowerbound against homogeneous multilinear formulas
Speaker:
Time:
Friday, 13 September 2019, 17:15 to 18:15
Venue:
• A-201 (STCS Seminar Room)
Organisers:
Abstract: A polynomial is said to be multilinear if the individual degree of every variable is at most one in any monomial; and is said to be homogeneous if ... | |
+0
# Complex Numbers. Help is appreciated
0
69
1
Consider the complex number in this picture
We can write
$$z = 2\sqrt{2}e^{i\theta_1} = 2\sqrt{2}e^{i\theta_2} = 2\sqrt{2}e^{i\theta_3}$$
for $$\theta_1, \theta_2, \theta_3$$ between 0 and 6pi. Answer with $$\theta_1, \theta_2, \theta_3$$
Help is really appreciated... | |
# Cannot get large centered text vertically aligned with flushed text
I cannot get the name to vertically align with the text on the left or the right. Using a table seems better but its still off.
Just to clarify below are my two attempts to vertically align the name with the contact info on both sides.
The first w... | |
# Revision history [back]
### Fedora 20 - KDE not starting up
Well, it's been a long time I have a look at KDE. So, I decided to install it too on my Fedora 20 GNOME edition, and have a look at where is KDE now. And I installed KDE using:
yum install @kde-desktop
After rebooting, I tried to login to KDE Plasma and... | |
# All Questions
27 views
### What makes a sight or an image mesmerizing and irresistible?
There are some examples of this. What makes us: Feel we just HAVE TO watch that video or an image again, it's common with comedy videos Feel we need to stare at a such a beautiful sight, a person ...
90 views
### Is the book “... | |
# Calculate the Efficiency of Packing in Case of a Metal Crystal For Body-centred Cubic - Chemistry
Calculate the efficiency of packing in case of a metal crystal for body-centred cubic
#### Solution
Body-centred cubic:
It can be observed from the above figure that the atom at the centre is in contact with the othe... | |
# Boundary conditions in Montjoie
The boundary conditions implemented in Montjoie are listed in the class BoundaryConditionEnum :
The boundary conditions are usually taken into account in the finite element matrix (through the variational formulation). Dirichlet and Supported boundary conditions are set by setting th... | |
# Unique continuation of the Hilbert transform
Let's consider the usual Hilbert transform $$H$$ defined as $$Hf = P.V. (\frac{1}{x}*f).$$ A well-known unique continuation principle states that if $$Hf = f =0$$ on some interval $$I$$, then $$f \equiv 0$$. My question is whether the argument is still true if we replace ... | |
Time of flight with air resistance
1. Apr 1, 2007
Caspian
I need to compute the time of flight of a projectile which is subject to air resistance.
Here's where I am so far in solving the problem:
$$F_{drag} = -B v^2$$
$$a = \frac{\partial v}{\partial t} = \frac{-B v^2}{m}$$
integrate and solve for v...
$$v = \sq... | |
• The description of quantum dielectric function for insulators over Bethe surface
• Fulltext
https://www.ias.ac.in/article/fulltext/pram/092/02/0027
• Keywords
Energy loss function; differential inelastic inverse mean free path; local particle number; Bethe surface; dielectric function
• Abstract
A new expressio... | |
# Philosophy:Legalism (Chinese philosophy)
Short description: One of the six classical schools of thought in Chinese philosophy
Legalism
Legalism or Fajia is one of the six classical schools of thought in Chinese philosophy. Literally meaning "house of (administrative) methods / standards (法, Fa)",[1] [2]:93 the Fa "... | |
Gravitational Force Calculator
Enter values in given input box to find force of gravity by using our Gravitational Force Calculator.
kg
kg
m
N
Is This Tool Helpful?
Gravitational Force Equation / Formula
Gravitational Force :
F = Gm1m2 r2
Mass of Object 1 :
m1 = Fr2 Gm1
Mass of Object 2 :
m2 = Fr2 Gm1
Distance ... | |
# Is every element contained in a Borel subalgebra?
Let $\frak g$ be a complex semisimple Lie algebra. Is every $X\in\frak g$ contained in some Borel subalgebra $\frak b$?
Attempt: I know that a Borel subalgebra is by definition a maximal solvable subalgebra. Now, $Span(X)$ is abelian so it is solvable. Hence $Span(X... | |
# Time Complexity Analysis: "Cost of a Recursive Call"
When were are talking Time Complexity then as I have understood it. then to perform a while loop that will result in the cost of n(-1)/2 Further more the cost of a for loop is n(n+1)/2 - 1 but what is the cost of a recursive call?
• The time complexity of recursi... | |
💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!
JH
# Evaluate the integral.$\displaystyle \int_0^{\frac{\pi}{4}} \sqrt{1 - \cos 4 \theta} d \theta$
## $\frac{\sqrt{2}}{2}$
#### Topics
Integration Techniques
### Discussion
You must be signed in to d... | |
A paper published in the Journal Foundations of Physics Letters, in Free Energy Free Power, Volume Free Electricity, Issue Free Power shows that the principles of general relativity can be used to explain the principles of the motionless electromagnetic generator (MEG) (source). This device takes electromagnetic energy... | |
When running my algorithm, I am seeing a short Sell order that is followed by a BUY order to balance out.
That said, the buy order is issued at a different price than the selling price. I am wondering if this process is affecting the Backtest Overall Return.
Please see an attached snap of the transaction detail.
https:... | |
## Analyticity and polynomial approximation in modular function spaces.(English)Zbl 0692.41010
Let E be a compact subset of $$C^ n$$ and let $$L_ p$$ be a modular functions space. The authors study the problem of analytic extension of $$f\in L_ p$$ to a holomorphic function by means of polynomial approximations. The c... | |
• M Ramakrishna Murthy
Articles written in Bulletin of Materials Science
• Ion-beam modifications of the surface morphology and conductivity in some polymer thin films
Studies on the surface micromorphology and surface conductivity in thin polymer films of poly vinyl alcohol (PVA) and poly ethylene oxide (PEO) in bo... | |
# Business Static - Probability [closed]
Two cards were drawn, without replacement, from a pack of 52 cards. What is the probability that they are both Kings or both Queens ?
## closed as off-topic by Did, Davide Giraudo, Jack's wasted life, iadvd, user223391 Oct 29 '16 at 5:37
This question appears to be off-topic.... | |
## Introduction
Many problems in science, engineering, and mathematics can be reduced to solving systems of equations with notable examples in modeling and simulation of physical systems, and the verification and validation of engineering designs. Conventional methods for solving linear systems range from exact method... | |
# What is the Cartesian form of ( -9, (-7pi)/2 ) ?
(0, $- 9$)
Turn clockwise for negative angles, from $\theta$ = 0.
Here, r =$- 9$ and $\theta = - 7 \frac{\pi}{2}$.
Given point is same as $\left(- 9 , \frac{\pi}{2}\right)$. .
x = $- 9 \cos \left(\frac{\pi}{2}\right)$ =0 and y = $- 9 \sin \left(\frac{\pi}{2}\right) = ... | |
# Electrostatic Potential
## Homework Statement
Given an E field, determine if it's a possible electrostatic field. If so, determine a potential
∇⋅E
∇×E
## The Attempt at a Solution
[/B]
Just more of a clarification, since my friend and I both attempted this question differently.
I took the divergence and the cu... | |
## anonymous 3 years ago I need help with this problem. If a * b = a2 -b 2. Find 3 * 2. ________ a + b
1. anonymous
I' m attaching a file with 5 choices for this problem.
2. jim_thompson5910
Hint: $\Large a * b = \frac{a^2-b^2}{a+b}$ $\Large 3 * 2 = \frac{3^2-2^2}{3+2}$
3. anonymous
so it would be -2
4. jim_thom... | |
Prepare a 10-column work sheet for fiscal year 2005, starting with the unadjusted trial balance and including adjustments based on these additional facts:
a. The supplies available at the end of fiscal year 2005 had a cost of $3,200. b. The cost of expired insurance for the fiscal year is$3,900.
c. Annual depreciation ... | |
1. Sep 1, 2010
fluidistic
$$\Delta E \Delta t \geq \frac{\hbar}{2}$$.
If I understand well, if I measure the energy of a particle (or system of particles) with a great precision, I cannot know well at all when the system had this energy... right?
My doubt is: The system had (or will have?!) the energy I measured, bu... | |
# Selecting two points in [0-1] being the same p>0?
You and I each choose an undisclosed real number from 0 to 1. Then we compare them to see if we chose the same number.
p(a)=0, p(b)=0 -> p(a=b)>0 ?
I seem to recall that the probability of one instance of choosing a particular number should be zero, but if two peop... | |
cia studies astral projection. The Truth About Astral Projection by Keith Randolph and Carl Llewellyn Weschck - Customer Review - A brief, but inspiring guide to out-of-body experiences. Our topics include Conspiracy Theory, Secret Societies, UFOs and more!. The astral projection and lucid dreaming in Behind Her intell... | |
# Closable BlockingQueue
I am working on legacy code, specifically a sort of BoundedBlockingQueue (mainly used as a pipe between different threads). As it is heavily used in the system and the current implementation features fully synchronized methods and a wait/notify mechanism, I attempted to rewrite it, using the j... | |
# Yang-Mills action - a potential mistake in Wikipedia
Currently at the Wikipedia page on Yang-Mills theory, you see that [a screenshot],
Isn't that an obvious mistake? Based on this normal convention: $$F^2 \equiv F \wedge \star F$$ Shouldn't it be:
$$-\frac{1}{2}\operatorname{Tr}(F^2)\equiv -\frac{1}{2}\operatorna... | |
# What is the relationship between G and g in physics?
There are differences between Gravitation (G) and Gravity (g) are as follow:
Gravitation (G) Gravity (g) 1. Gravitation is the force of attraction acting between any two bodies of the universe. 1. Gravity is the earth's gravitational pull on the body, lying near... | |
# Electrodynamics
Magnetic field of a solenoid
The classical electrodynamics (also electrical theory ) is the branch of physics that deals with moving electric charges and time-varying electric and magnetic fields busy. The electrostatics as a special case of electrodynamics deals with dormant electrical charges and ... | |
# Math Help - exponential base. logarithm.
1. ## exponential base. logarithm.
so working on a few exponential functions. i know that you can make the exponents equal to one another if the bases are the same but what if there is a single variable and the terms are multiplied/added.
what i have so far:
$3^{2x}-2*3^{x... | |
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... | |
## symmetric part of a tensor
by on Dec.12, 2020, under Uncategorized
4 (1976), 665–667. of a symmetric tensor in 2-D/plane strain/axisymmetric conditions. Walk through homework problems step-by-step from beginning to end. If T∈V ⊗k is a tensor of order , then the symmetric part of is the symmetric tensor defined by.... | |
Formatted question description: https://leetcode.ca/all/1959.html
# 1959. Minimum Total Space Wasted With K Resizing Operations
Medium
## Description
You are currently designing a dynamic array. You are given a 0-indexed integer array nums, where nums[i] is the number of elements that will be in the array at time i... | |
MyTetra Share Делитесь знаниями!
Формулы из википедии 04.08.201819:20
Раздел: Цитаты - Пробная ветка - Ветка создана в Linux
Computational formulas
On computer systems with low floating-point precision, the spherical law of cosines formula can have large rounding errors if the distance is small (if the two points ar... | |
J Syst Evol ›› 1982, Vol. 20 ›› Issue (1): 34-44.
• Research Articles •
### A preliminary study on the classification, distribution and ecological nature of genus Stipa L. of China
Kuo Pen-Chao, Sun Yong-Hua
• Published:1982-02-18
Abstract: 24 species and 4 varietes of genus Stipa L. of China have been studied and... | |
# Math Help - derive the law of cosines
1. ## derive the law of cosines
how is it again that you would derve the law of cosines?
i do know that it starts out like the distance formula.
help plz
2. Originally Posted by Jnoobs
how is it again that you would derve the law of cosines?
i do know that it starts out lik... | |
. As the behavior of biological processes becomes known in much greater detail and more sophisticated scientific technologies are developed to measure biological processes, more complex mathematical models are required. Journal of Economic Perspectives 11:159–174. Von Neumann reached out to the meterology community for... | |
# Help with QM state vectors
Jumbuck
For my homework, I have a problem in which a (harmonic oscillator) system is prepared in state n=2 for t<0.
For time t>0, there is a perturbation given by
V(t) = sqrt(3/4)*h_bar*omega* (|2><1| + |1><2|)
After this I need to compute the probability amplitudes. However, my backgro... | |
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
For those without comedic tastes, the so-called experts at Wikipedia have an article about Zeno's Paradox.
“Now I understand the importance of not being Zeno.”
~ Oscar Wilde on Zeno
Zeno claimed to be a great philosopher and mathemagician, but ... | |
# What is the opposite and reciprocal of pi-3?
Jul 8, 2015
#### Answer:
The opposite is what makes $0$ when added
The reciprocal is what makes $1$ when multiplied
#### Explanation:
Opposite:
Usually you 'flip' the signs:
$- \pi + 3$ because $\left(\pi - 3\right) + \left(- \pi + 3\right) = 0$
Reciprocal:
Usually y... | |
### Multi-User CDH Problems and the Concrete Security of NAXOS and HMQV
##### Abstract
We introduce CorrGapCDH, the Gap Computational Diffie-Hellman problem in the multi-user setting with Corruptions. In the random oracle model, our assumption tightly implies the security of the authenticated key exchange protocols N... | |
Showing:
Handle Score
@Ibrahim Nash 5761
@akhayrutdinov 5111
@mb1973 4989
@Quandray 4944
@saiujwal13083 4506
@sanjay05 3762
@marius_valentin_dragoi 3516
@sushant_a 3459
@verma_ji 3341
@KshamaGupta 3318
Easy Accuracy: 50.08% Submissions: 16451 Points: 2
Given two linked lists, your task is to complete the function make... | |
You will be given two arrays of floating-point numbers. Your task is to pair the corresponding elements of the two arrays, and get the maximum of each pair. However, if the two corresponding elements are equal, you must take their sum instead.
For example, given the lists [1, 3, 3.2, 2.3] and [3, 1, 3.2, 2.6], you mus... | |
Algebraically closed fields of positive characteristic - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-21T09:27:14Z http://mathoverflow.net/feeds/question/3551 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/3551/algebraically-closed-fields-of-positive-characte... | |
Magyar Information Contest Journal Articles
# Problem P. 3703. (April 2004)
P. 3703. Subscribers can reach the text of the problem after signing in. The text will be public from April 15, 2004.]
(4 pont)
Deadline expired on May 11, 2004.
### Statistics:
139 students sent a solution. 4 points: 64 students. 3 poin... | |
# Tuple
A tuple is an ordered multiset that is a finite sequence with $n \ge 1$ tuple members.
## References
### 2015
• (Wikipedia, 2015) ⇒ http://en.wikipedia.org/wiki/tuple Retrieved:2015-2-23.
• A tuple is an ordered list of elements. In mathematics, an n-tuple is a sequence (or ordered list) of $n$ elements, wh... | |
11.1 Cost-Sensitive Classification
Imagine you are an analyst for a big credit institution. Let’s also assume that a correct decision of the bank would result in 35% of the profit at the end of a specific period. A correct decision means that the bank predicts that a customer will pay their bills (hence would obtain a... | |
# 134.2 kHz RFID reader for Arduino
I am looking for an Arduino-compatible RFID reader supporting ISO 11784 & 11785, in order to read tags used for animals (mostly cats and dogs) identification.
I found both RMD660 and and Sniffer Nano v2.0 from ITead Studio, but they are out of stock. Is there any alternative?
The ... | |
• Free Veritas GMAT Class
Experience Lesson 1 Live Free
Available with Beat the GMAT members only code
• 1 Hour Free
BEAT THE GMAT EXCLUSIVE
Available with Beat the GMAT members only code
• 5 Day FREE Trial
Study Smarter, Not Harder
Available with Beat the GMAT members only code
• Free Trial & Practice Exam
BEAT ... | |
# How do you find the asymptotes for 1/3(x-1)^3+2?
##### 1 Answer
Dec 11, 2016
No asymptote. This is an increasing function, making an x-intercept -0,8172 and y-intercept 5/3, nearly. See graph.
#### Explanation:
$y = \frac{1}{3} {\left(x - 1\right)}^{3} + 2 = 0$, when $x = - {6}^{\frac{1}{3}} + 1 = - 0.81712$, nea... | |
# Equivalence of norms on finite dimensional subset ($L^2$ and $H^1$ norms)
Let $b_i$ be a basis of $H^1(\Omega)$ and define $X=\text{span}(b_1, ..., b_n)$ for $n$ fixed.
Consider $X_1 = (X, \lVert \cdot \rVert_{H^1(\Omega)})$ and $X_1 = (X, \lVert \cdot \rVert_{L^2(\Omega)})$.
Both $X_1$ and $X_2$ are finite-dimens... | |
Under the auspices of the Computational Complexity Foundation (CCF)
REPORTS > DETAIL:
### Paper:
TR16-128 | 13th August 2016 18:23
#### Mildly exponential reduction from gap 3SAT to polynomial-gap label-cover
TR16-128
Authors: Irit Dinur
Publication: 13th August 2016 18:23
Downloads: 798
Keywords:
Abstract:
We s... | |
# Theta cos theta sin theta
our channel provide easy and simple solutions of maths and science problems. so guys join our channel subscribe it.Send your maths and science problems direc
if sin theta =cos theta ,find the value of theta and tan theta. Ask questions, doubts, problems and we will help you. 2015-06-12 As ... | |
## Provably Efficient Exploration in Policy Optimization
### Qi Cai · Zhuoran Yang · Chi Jin · Zhaoran Wang
Keywords: [ Non-convex Optimization ] [ Reinforcement Learning Theory ] [ Optimization - Non-convex ]
[ Abstract ]
Tue 14 Jul 7 a.m. PDT — 7:45 a.m. PDT
Tue 14 Jul 6 p.m. PDT — 6:45 p.m. PDT
Abstract: While p... | |
# Kronecker delta expansion
## Main Question or Discussion Point
If given δ_ijδ_kk what would the expansion of that be? I thought it was nine but have been told that is incorrect. I know that i=j =1 else zero so I thought that the δ_kk would equal 3 times 3 from the expansion of δ_ij but that isn't the answer
tiny-t... | |
# Difference between revisions of "2006 AMC 10B Problems/Problem 23"
## Problem
A triangle is partitioned into three triangles and a quadrilateral by drawing two lines from vertices to their opposite sides. The areas of the three triangles are 3, 7, and 7 as shown. What is the area of the shaded quadrilateral?
$[asy... | |
## RS Aggarwal Class 8 Solutions Chapter 1 Rational Numbers Ex 1D
These Solutions are part of RS Aggarwal Solutions Class 8. Here we have given RS Aggarwal Solutions Class 8 Chapter 1 Rational Numbers Ex 1D.
Other Exercises
Question 1.
Solution:
Question 2.
Solution:
Question 3.
Solution:
Question 4.
Solution:
Q... | |
# How does randomization avoid entering infinite loops in the vacuum cleaner problem?
Suppose we have a vacuum cleaner operating in a $$1 \times 2$$ rectangle consisting of locations $$A$$ and $$B$$. The cleaner's actions are Suck, Left, and Right and it can't go out of the rectangle and the squares are either empty o... | |
Acta Phys. -Chim. Sin. ›› 2018, Vol. 34 ›› Issue (12): 1321-1333.
Special Issue: 表面物理化学
• REVIEW •
### Interactions between Bases and Metals on Au(111) under Ultrahigh Vacuum Conditions
Xinyi WANG,Lei XIE,Yuanqi DING,Xinyi YAO,Chi ZHANG,Huihui KONG,Likun WANG,Wei XU*()
• Received:2018-01-09 Online:2018-12-15 Publi... | |
# C#LeetCode刷题之#231-2的幂（Power of Two）
Given an integer, write a function to determine if it is a power of two.
Credits:
Special thanks to @jianchao.li.fighter for adding this problem and creating all test cases.
```public class Program {
public static void Main(string[] args) {
var n = 8;
var res = IsPowerOfTwo(n);... | |
Volume 9 Issue 2 pp. 164-176 • doi: 10.15627/jd.2022.13
# Daylight Performance of the Modified Double Light Pipe (MDLP) Through Experimental Analysis on a Reduced Scale Model
Paolo Zazzini,a,* Alessandro Di Crescenzo,a Roberto Giammicheleb
Author affiliations
a Department INGEO, University “G. D’Annunzio”, Viale Pi... | |
# The Erasmus chessboard theorem
Professor Erasmus informed me today that he has proved another fascinating theorem about chessboards.
Consider a standard $8\times8$ chessboard with 32 black and 32 white squares. Pick an arbitrary (black or white) square $x$. Compute the sum $B$ of the 32 squared distances between th... | |
## Geometrization of 3-orbifolds of cyclic type. With an appendix: Limit of hyperbolicity for spherical 3-orbifolds by Michael Heusener and Joan Porti.(English)Zbl 0971.57004
Astérisque. 272. Paris: Société Mathématique de France. vi, 208 p. (2001).
Thurston’s geometrization conjecture in 3-dimensional topology states... | |
# 【matplotlib, scipy】How to plot normal distribution by python
The code to plot above graph.
import numpy as np
import matplotlib.pyplot as plt
import scipy.stats
mean = 50
std = 10
x = np.linspace(0,100,100)
y = scipy.stats.norm.pdf(x,mean,std)
plt.plot(x,y)
plt.show() | |
BBO Discussion Forums: WHICH BROWESRS BEST - BBO Discussion Forums
Page 1 of 1
WHICH BROWESRS BEST
#1RapidRob56
• Group: Members
• Posts: 1
• Joined: 2021-January-22
Posted 2021-January-22, 23:37
I am trying to switch browsers for BBO but am having trouble. The Settings under the Accounts Tab does NOT show the ch... | |
# Product of Odd Factorials: Do They Exist?
Case 1 ($n=1$): $$x_1!=1!\cdot3!=6=3!$$ Case 2 ($n=2$): $$x_2!=1!\cdot3!\cdot 5!=(1)\cdot(1\cdot 2\cdot 3)\cdot (1\cdot 2\cdot 3\cdot 4\cdot 5)=1\cdot 2\cdot 3\cdot 4\cdot 5\cdot 6=6!$$ Case 3 ($n=3$): $$x_3!=1!\cdot3!\cdot 5!\cdot 7!=(1)\cdot(1\cdot 2\cdot 3)\cdot (1\cdot 2... | |
## Thursday, November 24, 2016
### Author: Dhananjay Ghei
Dhananjay Ghei is a researcher at the National Institute for Public Finance and Policy. On this blog:
Please note: LaTeX mathematics works. This means that if you want to say $10 you have to say \$10. | |
# Image segmentation
(Redirected from Segmentation (image processing))
Model of a segmented femur. It shows the outer surface (red), the surface between compact bone and spongy bone (green) and the surface of the bone marrow (blue).
In computer vision, image segmentation is the process of partitioning a digital image... | |
### Session GO6: Z Pinches
9:30 AM–12:30 PM, Tuesday, November 15, 2011
Room: Ballroom G
Chair: Stephanie Hansen, Sandia National Laboratories
Abstract ID: BAPS.2011.DPP.GO6.4
### Abstract: GO6.00004 : Experimental Study of an Inverse Wire Array Z-Pinch Operating as a Current Switch
10:06 AM–10:18 AM
Preview Abst... | |
## wcaprar 3 years ago I just don't seem to be able to understand how to get the second derivative of a parametric equation. Can someone walk me through it?
1. wcaprar
Okay, my parametric equation is x=3+3t^2, y+3t^2+t^3. to find dy/dx you divide (dy/dt)/(dx/dt). Which I can do no problem.
2. wcaprar
For the first ... | |
Reasonable "Random" matrices to test numerical algorithms - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-21T09:12:31Z http://mathoverflow.net/feeds/question/50822 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/50822/reasonable-random-matrices-to-test-numerica... | |
Accelerating Innovation Through Analogy Mining
# Accelerating Innovation Through Analogy Mining
Tom Hope The Hebrew University of Jerusalem Joel Chan Carnegie Mellon University Aniket Kittur Carnegie Mellon University and Dafna Shahaf The Hebrew University of Jerusalem
###### Abstract.
The availability of large id... | |
# Need help converting units, momentum of quark question
1. Jan 2, 2013
### DunWorry
1. The problem statement, all variables and given/known data
A proton has a diameter of about 1fm. Estimate the minimum momentum in units of MeV/C of a quark confined in a proton.
2. Relevant equations
3. The attempt at a solution... | |
# Diff of /trunk/doc/cookbook/example01.tex
revision 3369 by jfenwick, Tue Oct 26 03:24:54 2010 UTC revision 3370 by ahallam, Sun Nov 21 23:22:25 2010 UTC
# Line 11 Line 11
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\begin{figure}... | |
CS 440/ECE 448
Margaret Fleck
## Reinforcement Learning 1
Gridworld pictures are from the U.C. Berkeley CS 188 materials (Pieter Abbeel and Dan Klein) except where noted.
## Reinforcement Learning
Reinforcement learning is a technique for deciding which action to take in an environment where your feedback is delaye... | |
# BMI Calculator
Not Reviewed
BMI =
Tags:
Rating
ID
Zoozoodude.BMI Calculator
UUID
ec2dac73-7138-11e5-a3bb-bc764e2038f2
Body mass index (BMI) is a way to calculate the amount of fat in a person's body.
Below is a table of the current health of the individual with the given values:
BMIWeight Health
Below 18.5Underwe... | |
NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1
### IIT-JEE 1998
If $$f\left( x \right) = {{{x^2} - 1} \over {{x^2} + 1}},$$ for every real number $$x$$, then the minimum value of $$f$$
A
doe... | |
## Introduction
It is observed that the reported MBI systems used different types of antennas for identifying the target tumor object. The reconstructed images from the systems are low resolution based, noisy, and blurry. As a result, tumor identification by non-expert physicians and radiologists can be difficult. The... | |
# Ahmed Arafat's research while affiliated with Mansoura University and other places
## Publications (4)
Article
Full-text available
We consider the class Ψd of continuous functions that define isotropic covariance functions in the d-dimensional sphere Sd. We provide a new recurrence formula for the solution of Probl... | |
# Worksheet on Operation of Multiplication
Practice the set of questions given in the worksheet on operation of multiplication. The questions are based on multiplying numbers to find the product of the given numbers, multiplication facts and word problems on multiplication.
1. Write the multiplication fact for each o... | |
# Literature: Literate programming: presenting code in human order
## HackerNews Discussion
### Literate programming but with many different presentations or paths of reading the program based on experience/need/use-case
" Peter Norvig 6 July 2016 at 11:47 I think the problem with Literate Programming is that assume... | |
Browse Questions
+1 vote
# A spring has a natural length of 14 meters.If a force of 5N is required to keep the spring stretched 2 meters.How much work is done in stretching the spring from its natural length to a length of 18 meters.
$\begin{array}{1 1}20Joules\\25Joules\\40Joules\\34Joules\end{array}$
We must first... | |
+0
-1
52
2
Find all possible integer values of n such that the following system of equations has a solution for z: \begin{align*} z^n &= 1, \\ \left(z + \frac{1}{z}\right)^n &= 1. \end{align*}
I just have no idea what to do.
\(\begin{align*} z^n &= 1, \\ \left(z + \frac{1}{z}\right)^n &= 1. \end{align*}
Aug 21, 20... | |
Home > CC1MN > Chapter cc21 > Lesson cc21.2.7 > Problem1-127
1-127.
Locate the coordinates of the three highlighted points on the graph of the triangle at right and write them as ordered pairs $(x,y)$. Homework Help ✎
The $x$ coordinate is the number of places going right or left to the point.
The $y$ coordinate is ... | |
# Hydrolysis constant of $NH^+_4$ is $5.55 \times 10^{-10}$. The ionisation constant of $NH^+_4$ is
(a) $1.8 \times 10^9$
(b) $5.55 \times 10^{-10}$
(c) $5.55 \times 10^4$
(d) $1.8 \times 10^{-5}$
Answer: $5.55 \times 10^{-10}$
$NH^+_4 + H_2O \rightleftharpoons NH_4OH + H^+$
$K_h = \frac{[NH_4OH][H^+]}{[NH^+_4]}... |
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