text stringlengths 100 957k | meta stringclasses 1
value |
|---|---|
$A.$ $\left(-\infty,-\frac{1}{2}\right) \cup(2 \sqrt{2},+\infty)$ $B.$ $\left(-\infty,-\frac{1}{2}\right) \cup(0,2 \sqrt{2})$ $C.$ $(-\infty, 0) \cup(0,2 \sqrt{2})$ $D.$ $(-\infty, 0) \cup(2 \sqrt{2},+\infty)$
D | {} |
# Prime Gaps and a James Tanton problem
Early this week James Tanton, a seemingly bottomless pit of great math ideas for kids, posted the following problem on Twitter:
A nice little twist on an old problem that inspired our Family Math talk for today.
The first thing that we did was do a quick review of prime number... | {} |
# An object with a mass of 7 kg is pushed along a linear path with a kinetic friction coefficient of u_k(x)= 4+secx . How much work would it take to move the object over x in [(pi)/12, (pi)/6], where x is in meters?
Aug 31, 2017
The work is $= 19.5 J$
#### Explanation:
We need
$\int \sec x \mathrm{dx} = \ln \left(... | {} |
## 13 September 2014
### Part 2.1: Some R cool stuffs for motivation (R for beginners)
Image from: www.r2-d2builder.com
After finishing the Part 2: Starting R, I thought we’d like to take a break and see some cool stuffs, to give you (somewhat) more motivation to learn R.
I’ve posted several articles earlier:
1. A bi... | {} |
# 澳门蒲京娱乐场
String structures and modular invariants
Spin structure and its higher analogies play important roles in index theory and mathematical physics. In particular, Witten genera for String manifolds have very nice geometric implications. As a generalization of the work of Chen-Han-Zhang (2011), we introduce the ... | {} |
## Precalculus (6th Edition) Blitzer
$(x+3)^2=-8(y-1)$, vertex $(-3,1)$, focus $(-3,-1)$, directrix $y=3$, see graph.
Step 1. Rewriting the equation as $x^2+6x+9=-8y-1+9$ or $(x+3)^2=-8(y-1)$, we have $4p=-8$ and $p=-2$ with the parabola opening downwards and vertex $(-3,1)$. Step 2. We can find the focus at $(-3,-1)$... | {} |
# How can I prove the Wolfram Alpha result $\int_0^{\infty} \frac{(\sin x)^2}{x^2-\pi ^2} dx=-\frac1{2\pi}$?
Having played around with Wolfram Alpha, I find the following improper integral:
$$\int_0^{\infty} \frac{(\sin x)^2}{x^2-\pi ^2} dx=-\frac1{2\pi}\tag{1}$$
But I don't know how to prove this result. Without th... | {} |
# Right skewed asymmetric Gaussian-like distribution
I am trying to find a possible candidate as a fitting function for a distribution that looks like the following
I know that this isn't a straightforward question, but I would like a simple function to start working with, before starting to optimize the procedure.
... | {} |
you are viewing a single comment's thread.
[–] 2 points3 points (4 children)
sorry, this has been archived and can no longer be voted on
Hey guys so I was wondering does anyone ever not use PdfLaTex these days
In some sense, people who are using "regular" LaTeX are using pdfLaTeX.
ftpmaint@millstone:~$whereis lat... | {} |
Which magnifying visor do you recommend?
Merlysys
Joined Nov 17, 2013
23
I searched the posts but not much info.
I need a magnifying visor for general electronics work like soldering on PCBs.
I am nearly 50 so eyesight not perfect.
The lighted type would be best. Ebay stuff OK but most of them are for jewellery work ... | {} |
A ray is nothing but a portion of a line. ... Identify all the rays shown in the image below. Thus the ray definition geometry stands as follows. tells the geometry student or the geometry teacher that this ray starts at A and passes through B. It has staring point but has no end point. In geometry, a ray is a line seg... | {} |
## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
$(f^{-1}\circ f)(x)=x$ and $(f\circ f^{-1})(x)=x$, so the given function is the inverse of f.
If a function $f$ is one-to-one, then $f^{-1}$ is the unique function for which $(f^{-1}\circ f)(x)=f^{-1}(f(x))=x$ and $(f\circ f^{-1})(x)=f(f^{-1... | {} |
# Relative Paths in Compilation Database
I am calling runClangTidy using a JSONCompilationDatabase that I generate from a string. Everything works perfectly until I have a relative path.
With the following database I use “D:\CMakeTest\bld\…\src\main.cpp” as the file to open:
[
{
“directory”: “D:\CMakeTest\bld\”,
“com... | {} |
# Problem: The following reaction can be written as the sum of two reactions, one of which relates to ionization energy and one of which relates to electron affinity:1. What is the reaction that corresponds to the first ionization energy of potassium, K?2. What is the reaction that corresponds to the electron affinity ... | {} |
Welcome to the migration guide for PyTorch 0.4.0. In this release we introduced many exciting new features and critical bug fixes, with the goal of providing users a better and cleaner interface. In this guide, we will cover the most important changes in migrating existing code from previous versions:
• Tensors and Va... | {} |
# Rate Estimate Standard Errors
Version 5
Description:
Rates are commonly estimated statistically with the ratio of additive aggregates, such as the ratio of sums, or averages. There are three principle reasons driving the use of ratios of estimates: first, they lend themselves to interpretation; second, they are ve... | {} |
0
Research Papers: Internal Combustion Engines
# Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine
[+] Author and Article Information
William F. Northrop, Stanislav V. Bohac, Dennis N. Assanis
Department of Mechanical En... | {} |
# Tangent bundle of P^n and Euler exact sequence
I'm thinking about the Euler exact sequence for complex projective space, and I'm a bit confused. In the topological category, one has
$$T\mathbb{P}^n \oplus \mathbb{C} \cong L^{n+1}$$
where $L$ is the tautological line bundle and $\mathbb{C}$ is the trivial line bund... | {} |
# 20.3 Resistance and resistivity (Page 2/6)
Page 2 / 6
Resistivities $\rho$ Of various materials at $\text{20º}\text{C}$
Material Resistivity $\rho$ ( $\Omega \cdot \text{m}$ )
Conductors
Silver $1\text{.}\text{59}×{\text{10}}^{-8}$
Copper $1\text{.}\text{72}×{\text{10}}^{-8}$
Gold $2\text{.}\text{44}×{\text{10}}^{... | {} |
• Science
Psychoactive drugs are in a specific category. They significantly impact the body's central nervous system, altering a person's normal activities. A person using psychoactive drugs can experience...
• Science
The answer to this question is yes... and no. It is important to first understand what psychoactive ... | {} |
### Author Topic: Compiling a PM sample with GCC (Read 3886 times)
#### Martin Iturbide
• OS2World NewsMaster
• Global Moderator
• Hero Member
• Posts: 3595
• Karma: +34/-0
##### Re: Compiling a PM sample with GCC
« Reply #45 on: April 12, 2022, 04:37:44 pm »
Hi Martin, the PROTMODE statement is for whether the prog... | {} |
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T10: Searches for New Physics
The CLIC potential for new physics
J. Klamka* and On behalf of the CLICdp collaboration
Full text: pdf
Pre-published on: February 24, 2022
Published on: May 12, 2022
Abstract
The Compact Linear Co... | {} |
p Without actually finding the cube...
Question
# p Without actually finding the cubes find the following:
11th - 12th Class
Maths
Solution
108
4.0 (1 ratings) | {} |
August 13, 2020, 10:28:42 AM
Forum Rules: Read This Before Posting
### Topic: benzoin condensation (Read 12483 times)
0 Members and 1 Guest are viewing this topic.
#### pgk
• Chemist
• Full Member
• Posts: 892
• Mole Snacks: +97/-24
##### Re: benzoin condensation
« Reply #15 on: July 04, 2015, 03:47:42 PM »
The KO... | {} |
Prime number theorem for knots?
Is there an analog to the prime-number theorem describing the distribution of the prime numbers among the integers: A theorem that describes the distribution of the prime knots, perhaps with respect to the knots with $k$-crossings? Or a distribution with respect to some other relevant k... | {} |
# Does Zhang's theorem generalize to $3$ or more primes in an interval of fixed length?
Let $p_n$ be the $n$-th prime number, as usual: $p_1 = 2$, $p_2 = 3$, $p_3 = 5$, $p_4 = 7$, etc.
For $k=1,2,3,\ldots$, define $$g_k = \liminf_{n \rightarrow \infty} (p_{n+k} - p_n).$$ Thus the twin prime conjecture asserts $g_1 = ... | {} |
# Electron electric dipole moment as a sensitive probe of PeV scale physics
@article{Ibrahim2014ElectronED,
title={Electron electric dipole moment as a sensitive probe of PeV scale physics},
author={Tarek Ibrahim and Ahmad M. Itani and P. Nāth},
journal={Physical Review D},
year={2014},
volume={90},
pages={055006}
}
•... | {} |
Chapter 23
The endogenous corticosteroids are produced by the adrenal cortex and are essential for life. As with the gonadal steroid hormones discussed in Chapter 22, corticosteroids are synthesized from cholesterol. They comprise two major physiologic and pharmacologic groups, glucocorticoids and mineralocorticoids (... | {} |
Diffraction with a large array of slits
1. May 27, 2014
Flucky
Hi all, exams soon and I'm stressing out over this small question. If anyone could guide me through, explaining why you're doing what you're doing that'd be beyond great.
1. The problem statement, all variables and given/known data
Light of wavelength λ... | {} |
# 抽象代数代写| Cosets
1. Isomorphisms
We see that cyclic group of order $d$ looks very similar to the group $\left(\mathbb{Z}_{d},+\right) .$ In some sense this is the same group, and to make this claim precise we introduce a new notion.
2. Definition 1: Isomorphism
A group isomorphism between groups $\left(G_{1}, *{1}\... | {} |
# Mathematical proof
A mathematical proof is a way to show that a math theorem is true. One must show that the theory is true in all cases.
There are different ways of proving a mathematical theorem.
## Proof by Induction
One type of proof is called proof by induction. This is usually used to prove a theorem that i... | {} |
# How do you evaluate 5(3P2)?
Then teach the underlying concepts
Don't copy without citing sources
preview
?
#### Explanation
Explain in detail...
#### Explanation:
I want someone to double check my answer
2
Jan 29, 2016
5(3P2) on a calculator would give you 30.
#### Explanation:
3P2 means how many permutation... | {} |
Post Module Problem
$\Delta p \Delta x\geq \frac{h}{4\pi }$
Michael Du 1E
Posts: 117
Joined: Sun Sep 22, 2019 12:16 am
Post Module Problem
What would the uncertainty of position be for this problem? "The hydrogen atom has a radius of approximately 0.05 nm. Assume that we know the position of an electron to an accur... | {} |
# Rearrangement Reaction
1. Homework Statement
phph
| |
ph-c-c-ch3 + H+ ->
| |
OH Br
2. Homework Equations
3. The Attempt at a Solution
Here, the OH is protonated, and leaves as water. Then the phenolic group on the right carbon migrates to the left one leaving a +ive charge on the right carbon. What happens after... | {} |
# How do you factor and solve (a+1)(a+2) = 0?
Jun 16, 2016
$a = - 1$ or $a = - 2$.
#### Explanation:
$\left(a + 1\right) \left(a + 2\right) = 0$ is already factorized into $\left(a + 1\right)$ and $\left(a + 2\right)$.
As product of $\left(a + 1\right)$ and $\left(a + 2\right)$ is zero, it means
either $a + 1 = 0... | {} |
# The 12th International Workshop on the Physics of Excited Nucleons
Jun 10 – 14, 2019
Bonn, Campus Poppelsdorf
Europe/Zurich timezone
## EtaMAID-2019 for η and η' photoproduction on nucleons
Jun 11, 2019, 3:30 PM
30m
HS 7
### HS 7
Partial wave analyses and baryon resonance parameter extraction
### Speaker
Victo... | {} |
Woolz Image Processing Version 1.7.5
WlzCrossCorValue
Name
WlzCrossCorValue - computes the cross correlation value of two objects.
Synopsis
WlzCrossCorValue [-h] [-n] [-o<out obj>] [-u] [<in obj 0>] [<in obj 1>]
Options
-h Help, prints usage message. -n Normalise the cross-correlation value by dividing it by the are... | {} |
Home
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# Imaginary CTF 2021 - String Editor 2 [Pwn]
String Editor 2 is a pwn challenge from ImaginaryCTF 2021. We are given a compiled executable and the target server’s libc. The program is a very simple string editor that allows us to edit a 15 ch...
# WPICTF 2021 - Strong ARM [Pwn]
In thi... | {} |
Introduction
A significant amount of focus in statistics is on making inference about the averages or means of phenomena. For example, we might be interested in the average number of goals scored per game by a football team, or the average global temperature or the average cost of a house in a particular area.
The tw... | {} |
# Is the Product of Measurable Spaces the Categorical Product?
This post requires some knowledge of measure theory.
Today I’m going to show that the product of two measurable spaces ${(X, \mathcal{B}_X)}$ and ${(Y, \mathcal{B}_Y)}$, is actually the product in the category of measurable spaces. See Product (category t... | {} |
# Math API
## Functions
Return the absolute value of num (i.e. the number's distance from zero). This means that negative numbers will be converted to a positive number (e.g. -5 into 5), and positive numbers remain unaffected. The return value will always be a positive number.
Syntax math.abs(
)
Returns number
Part o... | {} |
# Math Help - Harmonic function question
1. ## Harmonic function question
Show that
$4 cos(\alpha t) + 3sin(\alpha t) = 5cos(\alpha t + \phi)$
where $\phi =arc tan(\frac{-3}{4}).$
I believe this is a harmonic function/sinusoid? Any help?
2. Well, I would probably use the addition of angles formula to expand out the... | {} |
# Arrangements of congruent rectangles
I have stumbled on an interesting problem. How many congruent rectangles on a plane can be arranged in such a way that they all touch each other but never overlap? I pondered this problem for a few days, but so far I'm not even sure what's the best way to formalize it. Has this p... | {} |
## Abstract
Using a population-based sampling strategy, the National Institutes of Health (NIH) Magnetic Resonance Imaging Study of Normal Brain Development compiled a longitudinal normative reference database of neuroimaging and correlated clinical/behavioral data from a demographically representative sample of healt... | {} |
LinearAlgebra[Modular]
Inverse
compute the Inverse of a square mod m Matrix
compute the Adjoint of a square mod m Matrix
Calling Sequence Inverse(m, A, det, B, meth) Adjoint(m, A, det, B, meth)
Parameters
m - modulus A - mod m Matrix det - (optional) name to use for output determinant B - (optional) Matrix to ... | {} |
### Theory:
A polynomial of the form $$ax^2 + bx + c$$, $$a \neq 0$$ is a quadratic polynomial.
The graph of a quadratic polynomial is a parabolic curve either open upwards or open downwards depending on whether $$a > 0$$ or $$a < 0$$.
Consider the graph of $$y = 2x^2 + 3x + 1$$.
$$x$$ $$-2$$ $$-1$$ $$0$$ $$1$$ $$... | {} |
# 10-seconds challenge-6
Calculus Level 3
Let $f(x) = \dfrac{\cos x}{x^4+ 1}$, find $f^{(3)} (0)$.
Clarification: We are looking for the third derivative of $f(x)$ with respect to $x$.
This is a part of 10-seconds challenge.
× | {} |
# Math Help - cut-point
1. ## cut-point
How would I show that a circle and a circle with a line bisecting it(with the end-points of the line touching the circumference) aren't homeomorphic?
I know I would have to use the 'cut-point principle' which states that homeomorphic sets have the same number of n-points for e... | {} |
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Resources tagged with Working systematically similar to Happy Octopus:
Filter by: Content type:
Stage:
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There are 122 results
Broad Topics > Using, Applying and Reasoning about Mathematics > Working systematically
Factors and Multiple Challenges
Stage: 3 Challenge Level:
This pack... | {} |
# Confusion in the position of image coordinates
I am struggling to work out how image coordinates are calculated and how to be consistent when finding particular points in an image using these coordinates for further analysis. I don't think it is necessarily a bug, but it makes it tricky to work with and modify image... | {} |
# Enabling “Update” button for installed packages
I found that if you navigate to the "Installed Add-Ons" page in the *Wolfram Documentation Center" accessed by following
Help ▸ Wolfram Documentation ▸ Add-ons and Packages
you will find a listing of all installed packages. Then if you open up the cell for one of the... | {} |
Skip to Main Content
Table 3—
Multivariate associations between beliefs, adherence, and health status
Independent variables predicting medication beliefsMedication beliefs (as dependent variables)
Antihyperglycemic
Antihypertensive
NecessityConcernsNecessityConcerns
n 803 573
Age (years) −0.12*** −0.17*** −0.08 −0.1... | {} |
Home » Uncategorized » Gate 2015 - Set 1 - EE Question 1 - Solution
# Gate 2015 - Set 1 - EE Question 1 - Solution
Gate 2015 - Set 1 - EE
Question 1 - Solution
$\int_{-\infty }^{\infty }f(x) dx =1 \Rightarrow \int_{0}^{1}(a+bx)dx =1 \Rightarrow \left [ax +\frac{bx^{2}}{2} \right ]_{0}^{1}=1$
Translate » | {} |
# How is confidence interval computed in statsmodels for ARIMA(p,d,q) parameters?
I am using statsmodel package for fitting ARIMA(p,d,q) model to a time series. My question is how exactly does this package estimate confidence intervals of the parameters of this model? statsmodels documentation says that
"The confiden... | {} |
# Univariate, Bivariate and Trivariate Entropies In netropy: Statistical Entropy Analysis of Network Data
knitr::opts_chunk$set(out.width = "100%", cache = FALSE ) The univariate entropy for discrete variable$X$with$r$outcomes is defined by $$H(X) = \sum_x p(x) \log_2\frac{1}{p(x)}$$ with which we can check for redun... | {} |
• Subject:
...
• Topic:
...
In van der Waals' equation of state of the gas, the constant 'b' is a measure of:
(a) intermolecular collisions per unit volume
(b) intermolecular attraction
(c) volume occupied by molecules
(d) intermolecular repulsions | {} |
# Problem with the Hermitian adjoint of an operator $\dagger$
Normally it is enough just to write \dag like this \hat A^{\dag} but it doesn't work here!. $$\hat A^{\dag}$$
If you type $\newcommand\dag\dagger$ at the beginning of your post, you can type $$a^\dag$$ and $$b^\dag$$ later. It will work as expected.
I actu... | {} |
process91/redmine_latex_mathjax
Subversion checkout URL
You can clone with
or
.
A plugin to enable mathjax on redmine
Ruby
Release: v0.3.0
latest commit a7a2dbabe6
authored
Failed to load latest commit information. lib/redmine_latex_mathjax/hooks Aug 5, 2015 README.md Aug 7, 2015 init.rb Aug 7, 2015
Redmine LaTeX M... | {} |
## devil in the details [Software]
Dear Helmut,
...exactly the same formulas, exactly the same equations, exactly the same numerical results, just more efficient code...
well, something is not exact
As usual, devil in the details (and extremums)
Kind regards,
Mittyri | {} |
5.2 Alkaline earth metals. Group 2 elements are known as alkaline earth metals because they are found in earth's crust. Did the reactions of the alkaline earth metals with water produce alkaline solutions? - Alkaline earth metals react slowly with cold water to form corresponding hydroxides and hydrogen gas. The alkali... | {} |
#### Archived
This topic is now archived and is closed to further replies.
# easy question about constructors......
This topic is 5045 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.
## Recommended Posts
high, i understand that the purpose of a contructor is to ... | {} |
# 5040 (number)
← 5039 5040 5041 →
Cardinalfive thousand forty
Ordinal5040th
(five thousand fortieth)
Factorization24 × 32 × 5 × 7
Divisors1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 25... | {} |
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Sciencemadness Discussion Board » Fundamentals » Beginnings » The Slime craze!! Select A Forum Fundamentals » Chemistry in General » Organic Chemistry » Reagents and Apparatus Acquisition » Beginnings » Miscellaneous » The Wiki Special topics » Technochemistry » Energet... | {} |
# 能量最小化初探，graphcuts能量最小化调用
梯度下降
模拟退火
图割
2.这个 跟最优化问题的求解，有什么联系跟区别呢？
3.这个能量的观点是否跟信息熵类似，让系统的熵最小？
/* energy.h */
/* Vladimir Kolmogorov (vnk@cs.cornell.edu), 2003. */
/*
This software implements an energy minimization technique described in
What Energy Functions can be Minimized via Graph Cuts?
To appear in IEEE Tra... | {} |
# Proving a Sequence Diverges
I'm required to prove $a_{n}=\frac{n+1}{\sqrt{n}}$ diverges by using the negation of the definition of convergence, that is:
$(\forall\epsilon >0)(\exists m \in \mathbb{N})$ such that $\forall (n>m) \in \mathbb{N}\:\:\left | f_{n}-L\right |<\epsilon$
The negation of this is: $(\exists \... | {} |
A study of vertical pathways in the upper ocean at scales from $\mathcal{O}$10 m - 1 km is proposed, where the high relative vorticities of surface flows lead to high Rossby numbers processes such as filaments and vortices. These processes are not quasigeostrophic and their vertical velocities cannot be determined usin... | {} |
Nonassociative Algebra
An Algebra which does not satisfy
is called a nonassociative algebra. Bott and Milnor (1958) proved that the only Division Algebras are for , 2, 4, and 8. Each gives rise to an Algebra with particularly useful physical applications (which, however, is not itself necessarily nonassociative), and... | {} |
# Revision history [back]
### Upgrade sage: build from sources?
I'm using an older version of Sage (4.5.3) in Ubuntu 10.04. I like it, but I'd like to upgrade to a more recent version. From the command prompt, calling
\$ sage -upgrade
throws a scary warning at me:
** WARNING: This is a source-based upgrade, whic... | {} |
# Non-intersecting Brownian Bridges in the Flat-to-Flat Geometry – Archive ouverte HAL
### Jacek GrelaSatya N. Majumdar 1 Grégory Schehr 2
#### Jacek Grela, Satya N. Majumdar, Grégory Schehr. Non-intersecting Brownian Bridges in the Flat-to-Flat Geometry. J.Statist.Phys., 2021, 183 (3), pp.49. ⟨10.1007/s10955-021-027... | {} |
# Comment on “Direct Mapping of the Finite Tem- perature Phase Diagram of Strongly Correlated Quantum Models”
This is the pre-published version harvested from ArXiv.
#### Abstract
In their Letter, Zhou, Kato, Kawashima, and Trivedi claim that finite-temperature critical points of strongly correlated quantum models e... | {} |
# fundamental solution of an ODE of second order
Let us consider the following homogenous ODE of second order: $$x''(t)+a_1(t)x'(t)+a_2(t)x(t)=0$$ where $$a_1$$ and $$a_2$$ are continuous functions. Are there conditions on these functions such that one fundamental solution is increasing and the other fundamental solut... | {} |
# Cryptarithms revisited!!
This problem is similar to the cryptarithm problem given by Apoorv but is somewhat difficult.I was not able to solve the problem so please give me a genuine solution to the question.
ACID+BASE=SALT+H20
Note: '0' is a digit, not a letter.
Same way to answer the question.
Note by Malay Pan... | {} |
# Graph Data Structures¶
At the core of TorchDrug, we provides several data structures to enable common operations in graph representation learning.
## Create a Graph¶
To begin with, let’s create a graph.
import torch
from torchdrug import data
edge_list = [[0, 1], [1, 2], [2, 3], [3, 4], [4, 5], [5, 0]]
graph = d... | {} |
# MLSN and salinity
When this question arrived, I thought I could respond by showing a blog post I’d written in the past with the answer.
“What kind of adjustments would you recommend to do when trying to use the MLSN on a Calcareous sand green profile and irrigation with water saline water with 1500 ppm and Pure Dyn... | {} |
# Thread: Prove that the order of Z(G) is either <e> or G
1. ## Prove that the order of Z(G) is either <e> or G
Let $\displaystyle G$ be a group of order $\displaystyle pq$, with $\displaystyle p$ and $\displaystyle q$ (not necessarily distinct) primes. Prove that the center $\displaystyle Z(G) = <e>$ or $\displaysty... | {} |
Coding
Published on
# Maximum Consecutive Sum of Length K coding solution
Authors
### Question
Find the maximum consecutive sum from an array with a given length k.
### Solution One:
The first method is just using a brute-force method.
def max_sum(arr, k):
if len(arr) < k:
return 'Invalid operation'
maximum = 0... | {} |
User:
Proportions Time and distance word problems "Time and distance" word problems, often also called "uniform rate" problems, involve something travelling at some fixed steady pace, or else at some average speed. Whenever you read a problem that involves "how fast", "how far", or "for how long", you should think of ... | {} |
# auto-pst-pdf problem - no cropped <file>-autopp.pdf
I'm trying to get some PSTricks pictures to PDF. I'm using the information provided on http://tug.org/PSTricks/main.cgi?file=pdf/pdfoutput#autopstpdf
Well, never change a running system ... yesterday it worked, but due to HDD problems I had to reinstall my system ... | {} |
# Difference between revisions of "Infinite Impulse Response Filter"
Infinite impulse response (IIR) filters are like finite impulse response filters (FIR filter), the difference lies in the fact that IIR filters use feedback, for example $y(n)=0.5y(n-1))$ which results in an infinite impulse response. | {} |
## Stream: maths
### Topic: finite free over PID
#### Johan Commelin (Mar 11 2021 at 05:00):
@Anne Baanen your PR about submodules of finite free modules over a PID came just at the right time. We need that kind of stuff (over $\Z$) for the liquid project. How hard do you think it is to lean the fact that over a PID... | {} |
2014
02-27
# Network
There is a network which is a completely binary tree. In the network, there are 2N users numbered from 1, 2, 3, 4, … 2N, which are the leaves in the network-tree. For example, Figure 1 is a network-tree. In the tree, there are 8 users (leaf nodes) and 7 transmitters (gray nodes).
Using network-t... | {} |
Chapter 8.2, Problem 18ES
### Discrete Mathematics With Applicat...
5th Edition
EPP + 1 other
ISBN: 9781337694193
Chapter
Section
### Discrete Mathematics With Applicat...
5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
1 views
# In 9-33, determine whether the given relation is reflexive symmetric,... | {} |
SetVelocity bypasses physics (see the call to SetVelocityMaximal underneath), so forces were not computed based on target velocity. To do this is a physically realistic fashion, write a force based PID controller that takes velocity target as feedback, and GetForceTorque should give you more physically meaningful readi... | {} |
Variational Bayesian Independent Component Analysis
Neil D. Lawrence, University of Sheffield
Christopher M. Bishop, Microsoft Research, Cambridge
Abstract
Blind separation of signals through the info-max algorithm may be viewed as maximum likelihood learning in a latent variable model. In this paper we present an a... | {} |
# Do all liquids boil in a vacuum?
Water boils at positive temperatures when put into a vacuum. Is this the case with all liquids, e.g. mercury?
-
Superfluid liquids technically do not boil with bubbles, but they evaporate nevertheless from the surface. When helium stops to boil, it is a clear sign of suprfluid trans... | {} |
# Two Constraints, One Inequality by Qing Song
### Solution 1
Clearly, none of $a,b,c$ is zero. Let $P(x)=(x-a)(x-b)(x-c)$ and $\displaystyle f(x)=\frac{P(x)}{x},$ the latter defined on $(-\infty,0)\cup (0,\infty),$ both with the roots $a,b,c.$
By Viète's theorem, $P(x)=x^3+2x^2+qx+4,$ for some real $q.$
Observe th... | {} |
Main content
# Solving equations graphically
CCSS Math: HSA.REI.D.11
Learn a clever method for approximating the solution of any equation. | {} |
## On generalized symmetric Finsler spaces.(English)Zbl 1211.53090
Authors’ abstract: We study generalized symmetric Finsler spaces. We first study some existence theorems, then we consider their geometric properties and prove that any such space can be written as a coset space of a Lie group with an invariant Finsler... | {} |
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# 5.4.1: Field of a Point Mass
[ "article:topic", "authorname:tatumj" ]
Equation 5.3.1, together with the definition of field strength as the force experienced by unit mass, means that the field at a distance $$r$$ from a point mass $$M$$ is
$g = \frac{GM}{r^2} \quad \text{N kg}^{-1} \text{ or ... | {} |
# Observational constraints on the origin of the elements II. 3D non-LTE formation of Ba ii lines in the solar atmosphere
### Abstract
Context. The pursuit of more realistic spectroscopic modelling and consistent abundances has led us to begin a new series of papers designed to improve current solar and stellar abund... | {} |
## Elementary Geometry for College Students (7th Edition) Clone
(a) $RN = 7.3$ (b) $RP = 5.3$
(a) The diagonals of a parallelogram bisect each other. Therefore the point R is the midpoint of $\overline{QN}$ We can find $RN$: $RN = QR = 7.3$ (b) The diagonals of a parallelogram bisect each other. Therefore the point R ... | {} |
2015-06-19 Andrew B. Collier
So, after upgrading to R 3.2.0 on my EC2 instance, I was installing newer versions of various packages and I ran into a problem with dplyr: virtual memory exhausted!
Seemed like a good time to add some swap.
Adding Swap and Turning it On
First make some swap files. I am in favour of cre... | {} |
International
Tables for
Crystallography
Volume B
Reciprocal space
Edited by U. Shmueli
International Tables for Crystallography (2006). Vol. B. ch. 2.5, pp. 283-284 | 1 | 2 |
## Section 2.5.2.7. Imaging of very thin and weakly scattering objects
J. M. Cowleya
#### 2.5.2.7. Imaging of very thin and weakly scatter... | {} |
Chapter 9 - Section 9.3 - Exponential Functions - Vocabulary, Readiness & Video Check: 3
yes
Work Step by Step
Yes, the function $y=2^{x}$ is a function because it passes the vertical line test.
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publis... | {} |
# f – Block Elements
## f – Block Elements
f-Block Elements :
→ Twenty eight elements in periodic table ie, atomic number 58 to 71 (14 elements) and atomic number 90 to 103 (14 elements). which are placed at the bottom of periodic table in two horizontal rows, are known as f-block elements. In these elements the las... | {} |
<meta http-equiv="refresh" content="1; url=/nojavascript/"> Circumference ( Read ) | Geometry | CK-12 Foundation
You are viewing an older version of this Concept. Go to the latest version.
# Circumference
%
Best Score
Practice Circumference
Best Score
%
Area and Circumference of Circles
0 0 0
You can use regular p... | {} |
# 0.1 Stoichiometry: laws to moles to molarity (Page 3/3)
Page 3 / 3
## Materials list
3M hydrochloric acid (HCl) solution
sodium bicarbonate ${\text{NaHCO}}_{3}$
methyl orange indicator
## Part 2
• Ask you TA for your assigned molarity–it will range from 0.7 M to 1.2 M.
• First need to know the formula for ... | {} |
# Monogame resolution problem (without scaling sprites)
So I'm working on a project and started working on a scaling system for different resolutions.
I know if you change the monogame resolutions, that the texture won't scale but I noticed deformed pixels. I just changed the PreferredBackBufferWidth to 1920 and the ... | {} |
# Incorrect plot with pgfplots and gnuplot
I'm attempting to plot atanh(x) although there seems to be a giant straight line linking the top and bottom points. Am I doing something wrong?
\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[no markers,samples=1001]
\end{ax... | {} |
# Tools for working with Scrum
Português | Source
Here at the company where I work, we participate in an internal project with a team of 8 people. After attending a lecture on Scrum, we decided to adopt some agile practices in our development team.
We were very excited about the methodology, however, the physica... | {} |
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