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# Forum:No seriously though, we are going to merge with Illogicopedia
Forums: Index > Village Dump > No seriously though, we are going to merge with Illogicopedia
Note: This topic has been unedited for 1458 days. It is considered archived - the discussion is over. Do not add to unless it really needs a response.
Sorry... | |
# Tag Info
1
This is not a direct answer to your main question, but it does answer something very important. What is the nature of relationship between taking the fractional part of a number and the mod function? Just for fun, let's use the notation you've built above. Take $n=1$ and $m$. The function is $\sqrt{1+m}$... | |
# Why shouldn't I use linear regression if my outcome is binary?
This week a student asked me (quite reasonably) whether using linear regression to model binary outcomes was really such a bad idea, and if it was, why. In this post I'll look at some of the issues involved and try to answer the question.
Linear regress... | |
# when silicon carbide is heated strongly in producers
#### Reactivity of silicon carbide and carbon with oxygen in …
1/1/1993· The oxidation behavior of bidirectional silicon carbide-based composites is studied in the temperature range from 900–1200 C under an oxygen pressure equal to 1 kPa. The composite consists o... | |
Checkout JEE MAINS 2022 Question Paper Analysis : Checkout JEE MAINS 2022 Question Paper Analysis :
# Oscillatory Motion
The motion that repeats itself after fixed intervals of time is called periodic motion. We know that oscillatory motion is a type of periodic motion. In this session, let us know in detail about th... | |
# PCA on data having more dimensions than observations [duplicate]
I have a 73 by 426 matrix, where 73 is the number of my observations, and 426 is the number of my features/dimensions. When I perform the PCA, I expect to get a 73 by 426 score matrix; instead, I get a 73 by 72 matrix. I assume this is because I have m... | |
# 13.9 Give the structures of A, B and C in the following reactions: (vi) $\inline C_{6}H_{5}NO_{2}\xrightarrow[]{Fe/HCl}A\xrightarrow[273K]{HNO_{2}}B\xrightarrow[]{C_{6}H_{5}OH}C$
Initially, product A is the reduction of nitrobenzene means it is an aniline. when A react with $HNO_{2}$ it gives benz... | |
##### Question
In: Computer Science
# To calculate Moment of inertia of DISC
explain how to calculate the moment of inertia of a disk, we will take the example of a uniform thin disk which is rotating about an axis through its centre.
## Solutions
##### Expert Solution
Concept.
As we have a thin disk, the mass i... | |
A new study on how we use reward information for making choices shows how humans and monkeys adopt their decision-making strategies depending on the uncertainty of information present. The findings challenge one of the most fundamental assumptions in economics, neuroeconomics and choice theory that decision-makers typi... | |
1. ## average speeds
On a drive from your ranch to Austin, you wish to average 64 mph. The distance from your ranch to Austin is 80 miles. However, at 40 miles (half way), you find you have averaged only 48 mph.
What average speed must you maintain in the remaining distance in order to have an overall average speed o... | |
# Quantum Spin Simulation
In Leonard Susskind's Quantum Mechanics: The Theoretical Minimum, he describes a computer program that could fool you into thinking there is a quantum spin in a magnetic field. This spin is inside a virtual measuring apparatus that can arbitrarily oriented during the experiment. The spin is r... | |
# News & Events
## NISER Colloquium
Date/Time:
Friday, October 26, 2018 - 16:00 to 17:00
Venue:
LH-5
Speaker:
Parameswaran Shankaran
Affiliation:
IMSc Chennai
Title:
The geometry of the upper half-space
The parallel postulate of the Euclidean geometry says that there is exactly one straight line that is parallel to ... | |
# Analytical solutions to the third-harmonic generation in trans-polyacetylene: Application of dipole-dipole correlation to single-electron models
@article{Xu1999AnalyticalST,
title={Analytical solutions to the third-harmonic generation in trans-polyacetylene: Application of dipole-dipole correlation to single-electro... | |
# PhaseMax
### convex relaxation without lifting
Phase retrieval deals with the recovery of an $$n$$-dimensional signal $$x^0\in\mathbb{C}^n$$, from $$m\geq n$$ magnitude measurements of the form \begin{align} \label{eq:original} b_i = |\langle a_i, x^0\rangle|, \quad i = 1,2,\ldots,m, \end{align} where $$a_i\in\math... | |
Documentation
# kfoldMargin
Classification margins for observations not used in training
## Description
example
m = kfoldMargin(CVMdl) returns the cross-validated classification margins obtained by CVMdl, which is a cross-validated, error-correcting output codes (ECOC) model composed of linear classification model... | |
Homology of the fiber
Let $$f:X\rightarrow Y$$ be a fibration (with fiber $$F$$) between simply connected spaces such that $$H_{\ast}(f):H_{\ast}(X,\mathbb{Z})\rightarrow H_{\ast}(Y,\mathbb{Z})$$ is an isomorphism for $$\ast\leq n$$
Is it true that the reduced homology of the fiber is $$\tilde{H}_{\ast}(F,\mathbb{Z})... | |
# New way of doing the A* Algorithm
I wrote a Python script for implementing an A* algorithm. Map, Start and Goal are given.
The code works well as far as I tested it but I want to get feedback from the best out there too. So I am sharing the code here. Map is given to you as pickle file.
In the code M is:
class Ma... | |
# Prove $f$ is riemann integrable if $f$ is continuous on closed interval $[a,b]$. (Explanation)
I was given the following proof of a theorem, quick note about notation, the fact that $$f$$ is riemann integrable on $$[a,b]$$ we denote by $$f\in\mathcal{R}([a,b])$$
Theorem: Let $$a,b\in\mathbb{R},a, let $$f$$ be conti... | |
# Elimination of parameter
1. Jan 19, 2007
### kasse
1. The problem statement, all variables and given/known data
Eliminate the parameter given
x=2e^t, y=2e^-t
3. The attempt at a solution
lnx = ln2 + t, so t = lnx - ln 2
This gives:
y=2e^(ln2-lnx)
y=2(e^ln2 * e^-lnx)
y= -4x
This does not, however, match the g... | |
# Financial ratio
Jump to: navigation, search
In finance, a financial ratio or accounting ratio is a ratio of two selected numerical values taken from an enterprise's financial statements. There are many standard ratios used to try to evaluate the overall financial condition of a corporation or other organization. Fi... | |
# PyCon 2019 Tutorial and Conference Days
written by on 2019-05-10 | tags: pycon 2019 conferences data science
It's just been days since I got back from PyCon, and I'm already looking forward to 2020! But I thought it'd be nice to continue the recap.
This year at PyCon, I co-led two tutorials, one with Hugo Bowne-An... | |
# Logical Constructions
First published Wed Nov 20, 1996; substantive revision Tue May 21, 2019
The term “logical construction” was used by Bertrand Russell to describe a series of similar philosophical theories beginning with the 1901 “Frege-Russell” definition of numbers as classes and continuing through his “const... | |
# Writing the ideal $m=\langle X, Y \rangle$ in $R=k[X, Y]$ as a countable union of prime ideals
Here's a problem (Exercise 3.21) from "A Term in Commutative Algebra" by Altman & Kleiman:
Let $k$ be a field, and $R=k[X, Y]$ be polynomial ring in two variables. Let $\mathfrak{m}=\langle X, Y\rangle$ - this is (maximal... | |
描述
A prefix of a string is a substring starting at the beginning of the given string. The prefixes of “carbon” are: “c”, “ca”, “car”, “carb”, “carbo”, and “carbon”. Note that the empty string is not considered a prefix in this problem, but every non-empty string is considered to be a prefix of itself. In everyday lang... | |
# 26.14. Filesystem Configuration¶
This section describes configuration options related to filesytems. By default, the In-Memory Filesystem (IMFS) is used as the base filesystem (also known as root filesystem). In order to save some memory for your application, you can disable the filesystem support with the CONFIGURE... | |
## Past Events
### One World Fractals, 2 November 2022
• De-Jun Feng (video).
• Dimensions of projected sets and measures on typical self-affine sets.
• Abstract: Let $$\{T_ix+a_i\}_{i=1}^\ell$$ be an iterated function system on $${\Bbb R}^d$$ consisting of invertible affine maps with $$\|T_i\|<1/2$$, and $$\pi:\{1,\... | |
# Re: [O] Bug ? Normal lines interpreted as list items
Sébastien Delafond <sdelaf...@gmail.com> writes:
> Hi all,
>
> a Debian user, reports[0] the following problem :
>
> When using Org within GNU Emacs, integers starting lines and followed
> by a period are interpreted as the first items of ordered lists, even
... | |
# Make a one sequence
A sequence of integers is a one-sequence if the difference between any two consecutive numbers in this sequence is -1 or 1 and its first element is 0.
More precisely: $$\a_1, a_2, ..., a_n\$$ is a one-sequence if:
$$\forall k \::\: 1\le k
Input
• $$\n\$$ - number of elements in the sequence
•... | |
# Galois connection
In mathematics, especially in order theory, a Galois connection is a particular correspondence between two partially ordered sets ("posets"). Galois connections generalize the correspondence between subgroups and subfields investigated in Galois theory. They find applications in various mathematica... | |
# [pdftex] Automatic custom equation numbers, hyperref and \ref*
Heiko Oberdiek oberdiek at uni-freiburg.de
Tue Feb 21 18:26:19 CET 2006
On Tue, Feb 21, 2006 at 09:48:54AM -0500, Victor Ivrii wrote:
> On 2/21/06, Heiko Oberdiek <oberdiek at uni-freiburg.de> wrote:
> > On Tue, Feb 21, 2006 at 06:19:27AM -0500, Victor... | |
# A model train, with a mass of 3 kg, is moving on a circular track with a radius of 3 m. If the train's kinetic energy changes from 18 J to 0 J, by how much will the centripetal force applied by the tracks change by?
##### 1 Answer
Feb 4, 2016
The centripetal force is given by $F = \frac{m {v}^{2}}{r}$. We are given... | |
# How to eliminate the gaps before and after \frac{}{}?
The macro \frac add a gap (approx 1.2pt) before and after the whole fraction. You could compare
$\frac{1}{1}\frac{1}{1}\frac{1}{1}\frac{1}{1}\frac{1}{1}\frac{1}{1}\frac{1}{1}\frac{1}{1}$
and
\newcommand{\mycmd}{\hskip1.2pt1\hskip1.2pt}
$\mycmd\mycmd\mycmd\myc... | |
## [DM16L] Collatz explorer
Contributed software for the DM10, DM11, DM12, DM15 and DM16 goes here.
Please prefix the subject of your post with the model of the calculator that your program is for.
dalremnei
Posts: 37
Joined: Thu Dec 10, 2020 11:32 am
Location: Scotland
### [DM16L] Collatz explorer
Just a fun progr... | |
+0
# trapezoid
0
63
4
What is the area of the trapezoid shown? Express your answer in the simplest exact form.
Feb 16, 2022
### 4+0 Answers
#1
+516
+6
We have ourselves here a trapezoid. The area of a trapezoid is h(base1 + base2) / 2.
Plugging in the values we see the area is 6(12 + 15)/2 = 3(12 + 15) = 3(27) ... | |
# Tag Info
## Hot answers tagged proof-writing
2 votes
### Hint on Kuratowski 14-Set Theorem Proof
For any set $U$ we have $X/clU=int(X/U)$. Then for $\, U=B^{c}$ we get $X/cl(B^{c})=int(X/B^{c})=intB$. So all we have to prove is that, $cl(intB)=B$. Clearly $\,\,cl(intB)\subseteq\,B$. Now we will ...
• 1,702
1 vote... | |
You are at the newest post.
## July202011
### Allan McRae » Blog Archive » How To File A Bug Report - One day this will feature a witty tagline…
I have been noticing that there are some things that people could be improve when reporting bugs to the Arch Linux bug tracker. So here are some guidelines for what I perso... | |
### Qi Rao
• PhD, University of Technology Sydney
raoqi1219@gmail.com
Qi Rao is currently a first-year Ph.D. student at Centre for Artificial Intelligence, University of Technology, Sydney, under the supervision of Prof. Yi Yang. | |
# Tag Info
10
Putting space and time on the same footing means to treat time as another dimension in addition to the other three physical dimensions. In the context of relativity, time is treated as another dimension (but within this idea of Spacetime space and time are not the same). In classical Newtonian physics, ... | |
# Translation:Attempt of a Theory of Electrical and Optical Phenomena in Moving Bodies/Section I
Translation:Attempt of a Theory of Electrical and Optical Phenomena in Moving Bodies by Hendrik Lorentz, translated from German by Wikisource
Section I. The fundamental equations for a system of ions located in the aether.... | |
# How do you prove that the Galois Group of a radical field extension is always soluble/solvable?
The question is asking how to prove (not necessarily in high detail but concisely) that the Galois Group (the group of Q-automorphisms of F where Q is the base field and F is a field extension of the base field) of a radi... | |
Understanding complex forms and confusions
I have few questions about forms that I am trying to grasp. So, first of all, let us consider the following things according to the order of difficulties.
First, we have space $L_{\mathbb{R}}(\mathbb{C},\mathbb{R})$ which is the space of all linear real forms. We have the fo... | |
## anonymous one year ago For what values of r does the integral convege? $\int\limits_{0}^{+\infty}\frac{ 1 }{ x^r(x+2) }dx$ Well, i tried dividing the integral from 0 to 1 and from 1 to infinity and then compare with the integral of 1/x^r, but not sure how to compare the second one. Any ideas?
1. anonymous
So long ... | |
• Views 1,816
• Citations 10
• ePub 50
• PDF 1,538
`Journal of CeramicsVolume 2013 (2013), Article ID 526434, 8 pageshttp://dx.doi.org/10.1155/2013/526434`
Research Article
Preparation and Characterization of Nano-Cadmium Ferrite
1Reactor Physics Department, Nuclear Research Center, Egyptian Atomic Energy Authority, ... | |
blog
# Releasing Norfair: an open source library for object tracking
Thu, Sep 10, 2020
Share
At Tryolabs, we are always on the look for the next big thing in detection models. This search usually involves fiddling with newly released research repositories and mixing and matching ideas between them. One thing that h... | |
Lemma 63.6.3. Let $S$ be a scheme. Let $X$ be an algebraic space over $S$. Then $X$ is quasi-compact if and only if there exists an étale surjective morphism $U \to X$ with $U$ an affine scheme.
Proof. If there exists an étale surjective morphism $U \to X$ with $U$ affine then $X$ is quasi-compact by Definition 63.5.1... | |
# When did the concept of temperature first arise?
I am interested in when the concept of temperature first arose. This seems surprisingly hard to pin down from the web-based research I've done so far. I am mostly interested in how people thought about the concept (or its precursors) prior to the invention of thermody... | |
# variance of the product of two samples with awgn
problem solved itself, sorry for your inconvenience. I'll try to post better questions next time.
Their equation (9) $$V(xy) = E^2(x)V(y) + E^2(y)V(x) + V(x)V(y). \quad (9)$$ reduces to your result | |
# Exact Value of sin 15°
How to find the exact value of sin 15° using the value of sin 30°?
Solution:
For all values of the angle A we know that, (sin $$\frac{A}{2}$$ + cos $$\frac{A}{2}$$)$$^{2}$$ = sin$$^{2}$$ $$\frac{A}{2}$$ + cos$$^{2}$$ $$\frac{A}{2}$$ + 2 sin $$\frac{A}{2}$$ cos $$\frac{A}{2}$$ = 1 + sin ... | |
My Math Forum Confused with quadratic
Algebra Pre-Algebra and Basic Algebra Math Forum
June 6th, 2016, 10:12 AM #1 Newbie Joined: Jun 2016 From: indiana Posts: 4 Thanks: 1 Confused with quadratic I am a college student reviewing an algebra problem. It appears that there might be a mistake in the problem, but no... | |
# Computing the Stationary Distribution Locally
Year
2013
Type(s)
Author(s)
C.E. Lee, A. Ozdaglar, D. Shah
Source
Advances in Neural Information Processing Systems, pp. 1376-1384, 2013
Url
http://papers.nips.cc/paper/5009-computing-the-stationary-distribution-locally.pdf
Computing the stationary distribution of a lar... | |
# User:Trefor
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Announcements go here
NOTE: This page is used as a placeholder for incomplete typed class notes.
## Typed Notes
The notes below are by the students and for the students. Hopefully they are useful, but they come with no guarante... | |
# Decimal to binary and binary to decimal convertor
Please review this code. How can I optimise this code?
#include <iostream>
#include <vector>
#include <algorithm> // std::reverse
#include <cmath> // pow()
typedef unsigned long long int ulli;
bool is_binary(ulli num)
{
bool status = true;
while (true)
{
if (num =... | |
Introduction to Sociology 3e
# 9.4Theoretical Perspectives on Social Stratification
Introduction to Sociology 3e9.4 Theoretical Perspectives on Social Stratification
### Learning Objectives
By the end of this section, you should be able to:
• Apply functionalist, conflict theory, and interactionist perspectives on... | |
Browse Questions
# During an adiabatic process, the pressure of a gas is proportional to the cube of its temperature. The value of $C_p/C_v$ for that gas is :
$\begin {array} {1 1} (a)\;\frac{7}{5} & \quad (b)\;\frac{4}{5} \\ (c)\;\frac{5}{3} & \quad (d)\;\frac{3}{2} \end {array}$
Can you answer this question?
$(d)\... | |
## Section16.3ElGamal Encryption System
The ElGamal encryption system is a public key encryption algorithm by Taher Elgamal [3] in 1985 that is based on the Diffie-Hellman key exchange. We give an introduction to the ElGamal Encryption System and an example in the video in Figure 16.3.1.
We assume that the message $$... | |
# American Institute of Mathematical Sciences
March 2014, 13(2): 729-771. doi: 10.3934/cpaa.2014.13.729
## Non-autonomous Honesty theory in abstract state spaces with applications to linear kinetic equations
1 Dipartimento di Ingegneria Civile, Università di Udine, via delle Scienze 208, 33100 Udine, Italy 2 Unive... | |
# Conductance and polarization in quantum junctions
Godby, R.W. and Bokes, P. (2004) Conductance and polarization in quantum junctions. Physical Review B (PRB). Art. No. 245420. ISSN 1098-0121
Full text available as:
We revisit the expression for the conductance of a general nanostructure -- such as a quantum point c... | |
## Number of Matchings in Regular Bipartite Graph
Prove or Disprove:
A k-regular bipartite graph (a bipartite graph where every vertex has degree k) has at least k! perfect matchings.
-
Is this homework? – Gjergji Zaimi Mar 4 at 19:07
It was originally a homework problem, but then a problem was discovered in the sta... | |
# Find the number of positive integers such that logarithm of whose reciprocals to the base 10 has the characteristic $-2$.
Find the number of positive integers such that logarithm of whose reciprocals to the base 10 has the characteristic $-2$.
Let $x$ be a positive integer.
Now the characteristic of $\log_{10}(\fra... | |
# Proof of Riemann Rearrangement Theorem
I’m reading the proof of Riemann Rearrangement Theorem in T. Tao’s Analysis 1 textbook which can be found here
Rearrangement Thm
(the parts missing from the textbook, left as exercises for the reader, are completed by the user asking the question)
but I don’t understand the las... | |
The perimeter of a triangle is 51 cm. The lengths of its sides are consecutive odd integers. How do you find the lengths?
May 16, 2018
16, 17 and 18
Explanation:
$a + b + c = 51$
$a + a + 1 + a + 2 = 51$
$3 a = 48$
$a = 16$
$b = 17$
$c = 18$
May 16, 2018
The sides are $15 c m , 17 c m \mathmr{and} 19 c m$
Explan... | |
# The case for trade surveillance in FX and fixed-income markets
A central bank’s role is to provide its nation’s currency with price stability by controlling inflation and achieving steady GDP growth. As part of their mandates, central banks are among the governmental and independent bodies that set foreign exchange ... | |
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Beyond the Standard Model
Searches for heavy resonances decaying into Z, W and Higgs bosons at CMS
D. Roy
Full text: Not available
Abstract
A summary of searches for heavy resonances with masses exceeding 1 TeV decaying into pairs... | |
Chapter 11.II, Problem 20RE
### Contemporary Mathematics for Busin...
8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447
Chapter
Section
### Contemporary Mathematics for Busin...
8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447
Textbook Problem
# Solve the following word problems by using Table 11... | |
# PN Junction Diodes and BJT Transistors: an Introduction
Want create site? Find Free WordPress Themes and plugins.
This article provides a brief introduction to PN junction diodes and BJT transistors.
## Doping Silicon: N-Type and P-Type Semiconductors
PN junctions play an important role in semiconductor fabricati... | |
# Shock polar
The term shock polar is generally used with the graphical representation of the Rankine-Hugoniot equations in either the hodograph plane or the pressure ratio-flow deflection angle plane. The polar itself is the locus of all possible states after an oblique shock.
## Shock Polar in the ${\displaystyle (... | |
# How to graph the contour of a resulting Manipulate curve
How can the green contour be graphed?
FourierF[a_, t_] := a.Table[Sin[ 2 Pi i t], {i, Length[a]}];
FourierAnim[a_, t_] :=
Module[{
A = Accumulate[a*Table[Cos[ 2 Pi i t], {i, Length[a]}]],
B = Accumulate[a*Table[Sin[2 Pi i t], {i, Length[a]}]]},
PrependTo[A, ... | |
# Feature selection
In machine learning and statistics, feature selection, also known as variable selection, attribute selection or variable subset selection, is the process of selecting a subset of relevant features (variables, predictors) for use in model construction. Feature selection techniques are used for sever... | |
## Conformal Mappings
Suppose we have a functionsends any pointin the plane to another pointWe can define smooth curves that pass throughThe functionis conformal if the angle between any two paths throughis unchanged by the transformation. This is shown below. The angle betweenandis the same as the angle betweenand
A... | |
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# How to find maximum spanning tree in BEERUS?Please help
1 asked 13 Jun, 13:24 2★babu1998 11●1 accept rate: 0%
One Answer:
0 Observe that ($node_i$ OR $node_j$) $+$ ($node_i$ AND $node_j$) = $node_i$ $+$ $node_j$. We can use this i... | |
# Ubuntu – Win10 linux subsystem libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast
driversnvidiaopenglwindows-subsystem-for-linux
I'm not really asking a question, but this ___ website won't allow me to do this any other way.
I ran into a problem today using GTK under Win... | |
Stretch minipage to align to top and bottom
I'm having two minipages side by side. The left one includes an image and the right one some text. The text is so-called "enclosed" by a rule at the top and the bottom. The text in turn is aligned to the top (below the top rule). Below the text, I want to insert vertical whi... | |
# Weak, Strong convergence of the discretized solutions of a variational problem
1. Jun 20, 2009
### TNT
1. The problem statement, all variables and given/known data
Consider the Galerkin discretization of an abstract variational problem where the Hilbert space V is separable.
http://en.wikipedia.org/wiki/Galerkin_... | |
### Mathematical Biosciences and Engineering
2008, Issue 4: 789-801. doi: 10.3934/mbe.2008.5.789
# A malaria model with partial immunity in humans
• Received: 01 December 2007 Accepted: 29 June 2018 Published: 01 October 2008
• MSC : 34D20, 34D23, 92D30
• In this paper, we formulate a mathematical model for malaria... | |
# On the Role of Shared Entanglement
Abstract:
Despite the apparent similarity between shared randomness and shared entanglement in the context of Communication Complexity, our understanding of the latter is not as good as of the former. In particular, there is no known entanglement analogue'' for the famous theorem ... | |
## Price Variance
### Learning Outcomes
• Analyze the variance between standard unit price and actual price of materials purchased
You own a woodworking shop and have figured out a price you will pay and how many pounds of wood you will need to make tables. What happens if you use more or less wood, or it costs more... | |
## 2 Feb 2018
### New site!
This blog will no longer be updated. A new site is online at https://sites.google.com/view/mathschallenges/home.
## 25 Jan 2018
### Dingdong
Algebraic surface of degree $3$ generated by the algebraic equation $x^2+y^2+z^3=z^2$.
## 19 Jan 2018
### Challenge 26
Write $2018$ with the di... | |
# Rotation Problem: Earth lengths/Apparent Weights
a Vortex
## Homework Statement
A friendly Brazilian has a mass of 150 kg. Being in Brazil, he rotates in a circle around the center of the earth once per day, The radius of this circle (which is essentially the radius of the Earth) is 6.40 x 10^6 m.
I have found th... | |
# What is the maximum amount of IF_7 that can be obtained from 25.0 g fluorine in the equation I_2 + F_2 -> IF_7?
Nov 29, 2016
You need a stoichiometric equation. You can make a mass of approx. $50 \cdot g$
#### Explanation:
$\frac{1}{2} {I}_{2} \left(g\right) + \frac{7}{2} {F}_{2} \left(g\right) \rightarrow I {F}_... | |
The Annals of Statistics
Uniform Asymptotic Optimality of Linear Predictions of a Random Field Using an Incorrect Second-Order Structure
Michael Stein
Abstract
For a random field $z(t)$ defined for $t \in R \subseteq \mathbb{R}^d$ with specified second-order structure (mean function $m$ and covariance function $K$)... | |
# Is there anyway to observe my latency or wireless signal strength over a period of time?
Perhaps two weeks ago or so, I began having terrible latency problems whenever I began playing online. At first, I thought the wireless receiver (a USB device) on my computer was simply failing, but these problems also occur whe... | |
# The Reasonable Effectiveness of the Multiplicative Weights Update Algorithm
Christos Papadimitriou, who studies multiplicative weights in the context of biology.
## Hard to believe
Sanjeev Arora and his coauthors consider it “a basic tool [that should be] taught to all algorithms students together with divide-and-... | |
## Backing Up All The Things
Having a backup of your data is important, and for me it’s taken several different forms over the years — morphing as my needs have changed, as I’ve gotten better at doing backups, and as my curiosity has compelled me.
For various reasons that will become clear, I’ve iterated through yet ... | |
# The dynamical structure of political corruption networks
The dynamical structure of political corruption networks Abstract Corruptive behaviour in politics limits economic growth, embezzles public funds and promotes socio-economic inequality in modern democracies. We analyse well-documented political corruption scan... | |
# Using k-fold cross-validation of random forest: how many samples are used to create a tree?
I'm trying to tune the hyperparameters of my RandomForestRegressor created in python with sklearn with bootstrap = True using GridSearchCV. The hyperparameters that I am trying to tune are min_samples_leaf and min_samples_spl... | |
# Is there a version of law of large numbers that works for non i.i.d random variables?
Assume $X_1,X_2,\ldots,X_N$ are identically distributed, non-negative, not independent. If $E\left[\sum\limits_{k=1}^N \frac{X_k}{N}\right]=\mu$, is there a way that I can conclude $$\lim\limits_{N \to \infty}P\left(\sum\limits_{k=... | |
# Tests for statistical significance of Kalman Filter estimate
I am working on regression model with time-varying coefficient, which looks like
For simplicity, I assume that $\alpha_t$, $\beta_t$, and $\gamma_t$ follow random walk. I have already learned how to estimate the coefficient $\alpha_t$, $\beta_t$, and $\ga... | |
Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
# Capabilities of Table:TwoIndependentVariables object?
I have data points for power for a piece of equipment in terms of Outdoor Air Temperature Drybulb and Outdoor Air Temperature Wetbulb that is a bit sparse. I'... | |
# Problem regarding Trigonometry Multiple Angles
Well, I know that this is not a homework help site. This isn't a homework, but rather I want to clear a probable misconception that I have on trigonometry submultiple and multiple angles. Here is the question.
Determine the smallest positive value of x(in degrees) for ... | |
# Absolute continuous function with given set of discontinuities of derivatives.
Suppose $A \subset [0,1]$ has Lebesgue measure zero. How can I construct a strictly increasing absolutely continuous function $f : [0,1] \to \mathbf{R}$ with $$\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}=\infty$$ for each $x \in A$?
We know tha... | |
# How do you find the domain and range of f(x) = -2 * sqrt(x-3) + 1?
Jun 20, 2017
Domain: $x \ge 3$ In interval notation : $\left[3 , \infty\right)$
Range: $f \left(x\right) \le 1$. In interval notation : $\left(- \infty , 1\right]$
#### Explanation:
$f \left(x\right) = - 2 \cdot \sqrt{x - 3} + 1$
Domain: Under ro... | |
# CHEP 2016 Conference, San Francisco, October 8-14, 2016
10-14 October 2016
San Francisco Marriott Marquis
America/Los_Angeles timezone
## GEANT4-based full simulation of the PADME experiment at the DAFNE BTF
11 Oct 2016, 15:00
15m
GG C1 (San Francisco Mariott Marquis)
### GG C1
#### San Francisco Mariott Marquis... | |
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Posts
## Emacs Tip: Using Macros
Yesterday I started to edit an old $\LaTeX$ file, and it happened that in my set of definitions I changed a bold math-operator with no arguments `\df`, by a math-operator with one argument (which happens to by the following word) `\de{#1}`.
## The problem
The issue now is th... | |
Friday, September 19, 2014
Comparing Planck's noise and dust to BICEP2
In case anyone reading this doesn't recall, back in March an experiment known as BICEP2 made a detection of something known as B-mode polarisation in the cosmic microwave background (CMB). This was big news, mostly because this B-mode polarisation... | |
# Rest , Motion , Frame of Reference , distance , displacement
### What is the meaning of Rest & Motion ?
When a body is at rest , its position does not change with time Whereas , Motion means change of position with time .
#### But how do we describe the position of a body ?
We describe it relative to another bo... | |
# How do you find the exact values of sintheta and tantheta when costheta=1/2?
$\cos t = \frac{1}{2}$ --> $t = \pm \frac{\pi}{3}$
a. When $t = \frac{\pi}{3}$ -->
$\sin \left(\frac{\pi}{3}\right) = \frac{\sqrt{3}}{2}$
$\tan \left(\frac{\pi}{3}\right) = \sqrt{3}$
b. When $t = - \frac{\pi}{3}$ -->
$\sin \left(- \frac{\pi... | |
# According to molecular orbital theory, which of the following is true with respect to Li2+ and Li2− ?
more_vert
According to molecular orbital theory, which of the following is true with respect to $Li_2^+$ and $Li_2^-$ ?
(1) Both are unstable
(2) $Li_2^+$ is unstable and $Li_2^-$ is stable
(3) $Li_2^+$ is stable... | |
# Evaluate a limit using a series expansion
## Homework Statement
Use a series expansion to calculate L = $\lim_{x\to\ 1}\frac{\sqrt[4]{80+x}-(3+\frac{(x-1)}{108})}{(x-1)^{2}}$
## Homework Equations
A function f(x)'s Taylor Series (if it exists) is equal to $\sum_{n=0}^{\infty}\frac{f^{(n)}(x)}{n!}\cdot$ (x-a)$^{n}... | |
Séminaire Physique mathématique ICJ
# The large N melonic limit of O(N) tensor models
## by Sylvain Carrozza (Perimeter Institute)
vendredi 9 mars 2018 de au (Europe/Paris)
at Institut Camille Jordan ( Fokko du Cloux )
Université Lyon 1, Bât. Braconnier, 21 av. Claude Bernard, 69100 Villeurbanne
Description Tensor ... | |
# Mesh vertices edit
This topic is 2781 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
Hello,
I am trying to edit mesh which is 4 sided polygon (a square), which contains 4 faces, each one should have 3 vertexes, I have a function that gets a... |
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