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# Introduction
Using the pretext of numerous encounters with models imported from the deep unsupervising learning field, namely variational autoencoders (World Models [1]), distribution estimators (Diversity Is All You Need [2]), or RealNVP[3] ( which appears in the paper: Latent Space Policy for Hierarchical Reinforc... | {} |
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... | {} |
diabetes2 R Documentation
## Type 2 Diabetes Clinical Trial for Patients 10-17 Years Old
### Description
Three treatments were compared to test their relative efficacy (effectiveness) in treating Type 2 Diabetes in patients aged 10-17 who were being treated with metformin. The primary outcome was lack of glycemic co... | {} |
# Math Help - Linear Transformation Question.
1. ## Linear Transformation Question.
Hi,
I'm having some trouble with part 2 of this question. Any help would be appreciated. Thanks,
Mike
2. Originally Posted by mslodyczka
Hi,
I'm having some trouble with part 2 of this question. Any help would be appreciated. Thanks,... | {} |
# Integrate cos(lnx)dx
1. ### Cudi1
100
1. The problem statement, all variables and given/known data
let u=lnx
du=1/x*dx
dv=cosdx
v=-sin
2. Relevant equations
Now im confused as im getting nowhere with this substiution, i learned the LIPTE rule but its quite confusing, i have a function within a function
3. The atte... | {} |
find the Christoffel symbols of the first or second kind for a metric tensor - Maple Programming Help
Home : Support : Online Help : Mathematics : DifferentialGeometry : Tensor : DifferentialGeometry/Tensor/Christoffel
Tensor[Christoffel] - find the Christoffel symbols of the first or second kind for a metric tensor
... | {} |
# Polynomial recurrence equation
1. Dec 29, 2004
### Pietjuh
For our combinatorics class there is a bonus excercise in which we have to solve the following recurrence relation:
$$L_k(x) = L_{k-1}(x) + xL_{k-2}(x)$$
My first thought was to construct the following generating function:
$$F(x,y) = \sum_{k=0}^{\infty}... | {} |
Sum of Geometric Sequence/Examples/Common Ratio 1
Theorem
Consider the Sum of Geometric Sequence defined on the standard number fields for all $x \ne 1$.
$\ds \sum_{j \mathop = 0}^n a x^j = a \paren {\frac {1 - x^{n + 1} } {1 - x} }$
When $x = 1$, the formula reduces to:
$\ds \sum_{j \mathop = 0}^n a 1^j = a \pare... | {} |
# Category:Simultaneous Equations
This category contains results about Simultaneous Equations.
Definitions specific to this category can be found in Definitions/Simultaneous Equations.
A system of simultaneous equations is a set of equations:
$\forall i \in \set {1, 2, \ldots, m} : \map {f_i} {x_1, x_2, \ldots x_n} ... | {} |
# Caption Contest: “Which end is up? No, I mean the tree.”
0
33
Did you know the Japanese word for “corrupt” is 破損した ?
Thanks to CA for the photo, which has been lifted from DNA’s FB page, which lately has devolved into a forest of #OurNA hashtags and exclamation marks, because the less one has to say, the louder it... | {} |
## Friday, August 19, 2011
### installer
A few tricks to get out of jail with OS X installs and updates...
If you have a package that just won't install due to bad voodoo (this can happen if you install a lot of seeds and the stars misalign) you can use this to force the install with this:
sudo CM_BUILD=CM_BUILD COM... | {} |
• Create Account
## MSAA issues.
Old topic!
Guest, the last post of this topic is over 60 days old and at this point you may not reply in this topic. If you wish to continue this conversation start a new topic.
5 replies to this topic
### #1Gavin Williams Members
964
Like
0Likes
Like
Posted 19 December 2012 - 0... | {} |
An element with atomic mass Z consists of two isotopes of mass number Z-1 and Z + 2. The percentage abundance of the heavier isotope is -
(A) 0.25
(B)33.3
(C)66.6
(D)75 | {} |
# Properties
Label 276.1.h.b.275.1 Level 276 Weight 1 Character 276.275 Self dual yes Analytic conductor 0.138 Analytic rank 0 Dimension 1 Projective image $$D_{2}$$ CM/RM discs -23, -276, 12 Inner twists 4
# Related objects
## Newspace parameters
Level: $$N$$ = $$276 = 2^{2} \cdot 3 \cdot 23$$ Weight: $$k$$ = $$... | {} |
Seaborn Bar Plot - Tutorial and Examples
# Seaborn Bar Plot - Tutorial and Examples
### Introduction
Seaborn is one of the most widely used data visualization libraries in Python, as an extension to Matplotlib. It offers a simple, intuitive, yet highly customizable API for data visualization.
In this tutorial, we'l... | {} |
# Demystifying the tensor product
It seems to me, through my mathematical immaturity, that the tensor product seems to beg for more well-definition. I am working in vector spaces (so we always have a free module) and here is what my professor has shown me thus far.
We can define the tensor product of two maps (multi-... | {} |
## Random connected area
Published on Saturday, 8th February 2020, 04:00 pm; Solved by 167
### Problem 701
Consider a rectangle made up of $W \times H$ square cells each with area 1.
Each cell is independently coloured black with probability 0.5 otherwise white. Black cells sharing an edge are assumed to be connecte... | {} |
While most people will never need to open a .lnk file to edit it, there may be rare occasions when it is necessary or desired. But how do you open and edit a shortcut file? Today’s SuperUser Q&A post has the answers.
Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a... | {} |
Surface current density problem
1. Sep 9, 2012
ppoonamk
1. The problem statement, all variables and given/known data
A static surface current density Js(x,y) is confined to a narrow strip in the xy-plane In this
static problem ∇ ⋅Js = 0. Show that the line-integral of Js along any cross-section of the strip will yi... | {} |
## Past Talks
Ryan Lukeman, "A Numerical Investigation of a Two-Layer Frontal Geostrophic Model of the Antarctic Circumpolar Current", Wednesday, August 24
Abstract: The numerical simulation of oceanic flow is a primary research tool for understanding the physical properties of the world ocean. These models range fro... | {} |
Latest release
# Use of Price Indexes
Producer and International Trade Price Indexes: Concepts, Sources and Methods
Reference period
2022
Released
29/04/2022
Next release Unknown
First release
This section of the publication provides users with a detailed breakdown of the key users and use of the Producer and Intern... | {} |
# Prove periodicity of exp/sin/cos from Taylor series?
1. Nov 24, 2008
### Gerenuk
How is it possible to see that $exp(i\phi)$ is periodic with period $2\pi$ from the Taylor series?
So basically it boils down to if is it easy to see that
$$\sum_{n=0}^\infty \frac{(-1)^n}{(2n)!}(2\pi)^{2n}=1$$
? Or any other suggest... | {} |
# Example of a PRP that is not a strong PRP
The exact definition of security for a pseudorandom permutation is straightforward - for some encryption scheme $E\,\colon\,\mathcal{K}\times\mathcal{D}\rightarrow\mathcal{D}$, it must be the case that no efficient adversary can distinguish $E_k(\cdot)$ from $\Pi(\cdot)$ (a ... | {} |
# Can I run Orange widgets from normal Python scripts?
I'd like to do normal machine learning with Python and Sklearn, but occasionally use the nice graphical widgets or Orange for presentation.
Is this possible?
I don't think Orange was ever intended to be used that way, but if you can convert your data into Orange... | {} |
# Do the rows of the design matrix refer to the observations or predictors?
I attempt to understand the formulation of dictionary learning for this paper:
Both papers used the exact formulation in two different domains.
Part 1: Clarification on math notations
Based on my understanding, in common machine learning, w... | {} |
## 3.6 Derivatives of Logarithmic Functions
Today, we will find the derivative of y = ln x using the fact that it is the inverse of the function y = e^x. There are a couple of different ways to determine this, and we will make use of the properties of logarithms to differentiate more complicated logarithmic functions... | {} |
Creating
data_frame() is a nice way to create data frames. It encapsulates best practices for data frames:
• It never changes an input’s type (i.e., no more stringsAsFactors = FALSE!).
data.frame(x = letters) %>% sapply(class)
#> x
#> "factor"
data_frame(x = letters) %>% sapply(class)
#> x
#> "chara... | {} |
I wanted to contribute to the PyFladesk project. The objective is to have a function that receives a Flask's app and embeds it in a Qt desktop app.
I've already create a Pull Request on the main repository, individual commmits and changes can be viewed there
This was the initial version: 83 lines - 3 Classes - 1 Func... | {} |
# Competition Diophantine Equation
I am looking for the number of integer solutions to this system of equations
$$a^2+b^2+c^2+d^2=2500$$ and
$$(a+50)(b+50)=cd$$
I tried moving terms around in the first equation and using the difference of two squares to try and gain some information, but came up empty. I was wonder... | {} |
User alexander chervov - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-24T19:05:27Z http://mathoverflow.net/feeds/user/10446 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/109706/minimizing-ftx-infty-by-permutation-of-x-i-question-on-fourier-transform Minimizi... | {} |
# Finding equivalent resistance for time constant in R-C circuit
Given the first order circuit above. The switch has been closed for a long time and is opened at $t=0$. Find the equation for the voltage $vc(t)$ across the capacitor after the switch has been opened.
I have determined that $vc(0)=7.619 V$, but cannot f... | {} |
# Student Q&A
Professor Kedlaya provided answers to some of the questions commonly asked by students in the class. The questions, as well as their answers, are listed below.
Are the hypotheses of Hartshorne exercise II.2.18(d) (PS 3) all necessary?
No, it is enough to assume that phi is surjective; the hypothesis th... | {} |
## polarity
https://doi.org/10.1351/goldbook.P04710
When applied to solvents, this rather ill-defined term covers their overall @S05747@ capability (@S05747@ @P04792@) for solutes (i.e. in chemical equilibria: reactants and products; in reaction rates: reactants and @A00092@; in light absorptions: ions or molecules in... | {} |
# quaintitative
I write about my quantitative explorations in visualisation, data science, machine and deep learning here, as well as other random musings.
For more about me and my other interests, visit playgrd or socials below
## Setting Up a Data Lab Environment - Part 6 - Serve a Flask
Adding Flask to the mix i... | {} |
# Recent Developments in Quantum Affine Algebras and Related Topics : Representations of Affine and Quantum Affine Algebras and Their Applications, North Carolina State University, May 21-24, 1998
Edited by , Edited by | {} |
# Control of Fractional Heat Equation
We use DyCon Toolbox for solving numerically the following control problem: given any $T>0$, find a control function $g\in L^2( ( -1 , 1) \times (0,T))$ such that the corresponding solution to the parabolic problem
satisfies $z(x,T)=0$.
Here, for all $s\in(0,1)$, $(-d_x^2)^s$ de... | {} |
# Inverse Functions
### LEARNING OBJECTIVES
By the end of this lesson, you will be able to:
• Verify inverse functions.
• Determine the domain and range of an inverse function, and restrict the domain of a function to make it one-to-one.
• Find or evaluate the inverse of a function.
• Use the graph of a one-to-one f... | {} |
# Quadratic Lie Algebras - Mathematics > Quantum Algebra
Abstract: In this paper, the notion of universal enveloping algebra introduced in A.Ardizzoni, \emph{A First Sight Towards Primitively Generated Connected BraidedBialgebras}, submitted. arXiv:0805.3391v3 is specialized to the case ofbraided vector spaces whose N... | {} |
# Bold font weight for LaTeX axes label in matplotlib
In matplotlib you can make the text of an axis label bold by
plt.xlabel('foo',fontweight='bold')
You can also use LaTeX with the right backend
plt.xlabel(r'$\phi$')
When you combine them however, the math text is not bold anymore
plt.xlabel(r'$\phi$',fontwei... | {} |
Calculus Examples
Find the Sum of the Infinite Geometric Series
, ,
Step 1
This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by gives the next term. In other words, .
Geometric Sequence:
Step 2
The sum of a series is calculated usi... | {} |
# Step down 48v input POE to 4 outputs 3.3v/5v/12v/custom
#### StealthRT
Joined Mar 20, 2009
266
Hey all I have been searching for a already-built solution that would output 3.3vdc, 5vdc and 12vdc @ 5a. I have found that here:
However the issue is that I will be feeding this 48vdc (POE) and it seems that the max thi... | {} |
## MECA member companies sold 20,177 diesel retrofits in the US 2011
##### 21 May 2012
The total number of verified (US EPA- and/or California ARB-verified) diesel retrofit devices (for both on-road and off-road diesel engines) sold in the US (including California) by MECA member companies in 2011 was 20,177, accordi... | {} |
Another maths curiosity from the Futility Closet:
Fortuitous numbers
In American usage, 84,672 is said EIGHTY FOUR THOUSAND SIX HUNDRED SEVENTY TWO. Count the letters in each of those words, multiply the counts, and you get 6 × 4 × 8 × 3 × 7 × 7 × 3 = 84,672.
Here’s something I’ve (pointlessly) struggled with for a l... | {} |
### Home > A2C > Chapter 12 > Lesson 12.1.4 > Problem12-69
12-69.
Graph each complex number and find its absolute value. Remember that the absolute value of a complex number is the same as its distance from the origin.
1. $−2i$
How far is this point away from $0$ on your graph?
The absolute value is $2$.
1. $−3 +... | {} |
# zbMATH — the first resource for mathematics
Optimal Hardy-Littlewood inequalities uniformly bounded by a universal constant. (English) Zbl 1410.46027
The original Hardy-Littlewood inequality, published in [G. H. Hardy and J. E. Littlewood, Q. J. Math., Oxf. Ser. 5, 241–254 (1934; JFM 60.0335.01)], relates some $$\el... | {} |
# If i = √-1, then how many values does i-2n have for different n ϵ Z?
1. One
2. Two
3. Four
4. Infinite
Option 2 : Two
## Detailed Solution
Concept:
The value i or the concept of i is used in explaining and expressing complex numbers. Complex numbers are numbers with a real and imaginary part. The imaginary part ... | {} |
## Wednesday, August 31, 2016
### OpenStax: Doing OER effectively and sustainably.
I recently discovered OpenStax and their collection of open source textbooks for classes at the high school and collegiate levels. Their texts hit the major courses in math, science, and the social sciences—from calculus to physics to... | {} |
Copied to
clipboard
## G = S3×D5⋊C8order 480 = 25·3·5
### Direct product of S3 and D5⋊C8
Series: Derived Chief Lower central Upper central
Derived series C1 — C15 — S3×D5⋊C8
Chief series C1 — C5 — C15 — C30 — C3×Dic5 — C3×C5⋊C8 — S3×C5⋊C8 — S3×D5⋊C8
Lower central C15 — S3×D5⋊C8
Upper central C1 — C4
Generators... | {} |
# lt¶
## Description¶
Return true if A is strictly less than B.
bool
## Domain¶
This is a scalar function (calculates a single output value for a single input row.)
## Usage¶
lt( a, b )
Argument
Type
Required
Multiple
a
any
Required
Only one
b
any
Required
Only one | {} |
# 4.2 Lab 3: prelab (part 2)
Page 1 / 1
You will design a fourth-order notch filter and investigate the effects of filter-coefficient quantization. You will compare the response of the filter having unquantized coefficients with that of a filter having coefficients quantized as a single, fourth-order stage and with t... | {} |
## Tuesday, July 26, 2011
### typedef[ine]
The typedef keyword introduces a new type. The #define directive provides a textual substitution mechanism. When does this matter? Consider the following source:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "str_type.h"
size_t length (CharPtr str) {... | {} |
Simplifying a trig expression
• May 29th 2008, 06:07 PM
Kim Nu
Simplifying a trig expression
[(1 / (cos^2 (x)) - x]*sin(x)
Can someone help me simplify this? Thanks,
Kim
• May 29th 2008, 06:49 PM
TKHunny
Probably not. Why do you think it possible?
• May 29th 2008, 08:06 PM
angel.white
Quote:
Originally Posted by Ki... | {} |
# python class (6): python 2 and python 3 class definition with super()
## 1. Why need super()
In a single inheritance case (when you subclass one class only), your new class inherits methods of the base class. This includes __init__. So if you don't define it in your class, you will get the one from the base.
Thing... | {} |
1. 125. C. 120. Example: The code that opens a certain lock could, for instance, be 333. You can’t be first and . Total […] ... All permutations of the string with repetition of ABC are: AAA AAB AAC ABA ABB ABC ACA ACB ACC BAA BAB BAC BBA BBB BBC BCA BCB BCC CAA CAB CAC CBA CBB CBC CCA CCB CCC. Repetition of characters... | {} |
# ABCD is a trapezium having AB || DC. Prove that O,
Question:
$A B C D$ is a trapezium having $A B \| D C$. Prove that $O$, the point of intersection of diagonals, divides the two diagonals in the same ratio. Also prove that $\frac{\operatorname{ar}(\Delta O C D)}{\operatorname{ar}(\Delta O A B)}=\frac{1}{9}$, if $A... | {} |
# Horizontal Bar Chart: A stroll through the languages of data¶
#### Some preliminaries¶
If you are wondering why in the world this webpage looks the way it does, it might help you to review Anaconda, Jupyter scripts and a basic Python example. You can do so by reviewing the post(s) below.
### Using Matplotlib¶
Try... | {} |
# Using PyOpenGL, can I rotate raw data rather than the current matrix?
I'm trying to create a sort of PyOpenGL renderer for the Bullet physics engine, and at the moment I'm rotating my basic cubes with math in Python. However, if I do the math in Python that's going to take more time than doing the math with OpenGL.
... | {} |
# Identify isomorphism type for each proper subgroup of (Z/32Z)*
#### ianchenmu
##### Member
The question is to identify isomorphism type for each proper subgroup of $(\mathbb{Z}/32\mathbb{Z})^{\times }$.
(what's the "isomorphism type" means? Does the question mean we need to list all the ismorphism between of each ... | {} |
If it took Carlos ~$\frac{1}{2}$~ hour to cycle from his house to the library yesterday, was the distance that he cycled greater than 6 miles? (Note: 1 mile = 5,280 feet)
(1) The average speed at which Carlos cycled from his house to the library yesterday was greater than 16 feet per second.
(2) The average speed at w... | {} |
2022-02-21
Dr. Genki Hosono gave us a stimulating talk on pluripotential and $L^2$ methods in complex geometry. The talk was carefully designed not only for non-mathematicians but also for experts around the topic. He began his talk with the definition and basic properties of subharmonic function and its multivariable... | {} |
2014
03-16
lazy gege
Gege hasn’t tidied his desk for long,now his desk is full of things.
This morning Gege bought a notebook,while to find somewhise to put it troubles him.
He wants to tidy a small area of the desk, leaving an empty area, and put the notebook there, the notebook shouldn’t fall off the desk when putt... | {} |
# Comparison of Falcon R5 processors verse R4¶
Recently IBM Quantum announced the move to revision 5 (R5) of its Falcon processors see this tweet from Jay Gambetta. In particular it was highlighted that there is a 8x reduction in meausrement time on these systems. Lets see if this, or any other enhancements, are visib... | {} |
# American Institute of Mathematical Sciences
July 2009, 12(1): 109-131. doi: 10.3934/dcdsb.2009.12.109
## Numerical computation of dichotomy rates and projectors in discrete time
1 Fakultät für Mathematik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld
Received September 2008 Revised December 2008 Pub... | {} |
# A 12.0 L sample of argon gas has a pressure of 28.0 atm. What volume would this gas occupy at 9.70 atm?
Jun 6, 2016
The volume that this gas occupies is $34.6 L$
#### Explanation:
Let's start off with identifying our known and unknown variables.
The first volume we have is 12.0 L, the first pressure is 28.0 atm, ... | {} |
# Analyzing a lammps trajectory¶
In this example, a lammps trajectory in dump-text format will be read in, and Steinhardt’s parameters will be calculated.
Earlier versions of this tutorial used traj_process module. It is now updated to work with the more efficient trajectory module.
import pyscal.core as pc
import o... | {} |
Under the auspices of the Computational Complexity Foundation (CCF)
REPORTS > DETAIL:
### Paper:
TR11-112 | 10th August 2011 15:09
#### The Projection Games Conjecture and The NP-Hardness of ln n-Approximating Set-Cover
TR11-112
Authors: Dana Moshkovitz
Publication: 10th August 2011 16:04 | {} |
3 Fixed some wording and corrected statement of Whitney's Theorem
Let me remark on the $C^m$ version of the question for $m \geq 1$. A classic result of H. Whitney from
Differentiable functions defined in closed sets I, Transactions A.M.S. 36 (1934), 369–387
reads as follows: Suppose that $f : \lbrace x_1, x_2 ,\cdo... | {} |
# Definite Integral of Uniformly Convergent Series of Continuous Functions
## Theorem
Let $\sequence {f_n}$ be a sequence of real functions.
Let each of $\sequence {f_n}$ be continuous on the interval $\hointr a b$.
Let the series:
$\ds \map f x := \sum_{n \mathop = 1}^\infty \map {f_n} x$
be uniformly convergent... | {} |
# IB DP Maths Topic 9.4 Improper integrals of the type HL Paper 3
## Question
(a) Using l’Hopital’s Rule, show that $$\mathop {\lim }\limits_{x \to \infty } x{{\text{e}}^{ – x}} = 0$$ .
(b) Determine $$\int_0^a {x{{\text{e}}^{ – x}}{\text{d}}x}$$ .
(c) Show that the integral $$\int_0^\infty {x{{\text{e}... | {} |
<meta http-equiv="refresh" content="1; url=/nojavascript/"> Pedal Power Extra for Experts | CK-12 Foundation
# 8.15: Pedal Power Extra for Experts
Created by: CK-12
0 0 0
Extra for Experts: Pedal Power – Write Functions Rules from Graphs and Tables
Solutions:
Extra for Experts, Pedal Power: 1
Time (Number of ho... | {} |
# Eigenvalues of an imperfect circulant matrix
For the circulant matrix, for example, $$\begin{bmatrix} a & b & 0 & & 0 \\ 0 & a & b & \cdots & 0 \\ 0 & 0 & a & & 0 \\ & \vdots & &\ddots & \vdots\\ b & 0 & 0 & \cdots & a \end{bmatrix},$$ we can obtain its eigenvalues analytically using the property of circulant matrix... | {} |
# The math behind supply curves
When I took introductory microeconomics towards the end of my undergraduate I expected almost everything in the course to be nonsense. Most of the claims of the economics profession that I had encountered seemed to me to be so far from the world around me that I expected the course to b... | {} |
# Django删除Model时自动删除文件
Note that when a model is deleted, related files are not deleted. If you need to cleanup orphaned files, you’ll need to handle it yourself (for instance, with a custom management command that can be run manually or scheduled to run periodically via e.g. cron).
## Django REST Framework
class M... | {} |
# OEMMFF94InitialCharges¶
bool OEMMFF94InitialCharges(OEMolBase &mol)
Assigns integral or fractional formal atomic charges (for example +1/3 on guanidinium nitrogens), which are used in MMFF94 force field for obtaining final partial atomic charges applying bond charge increments. Requires a prior call of OEMMFFAtomT... | {} |
Comparing the images
I have a drawable, which I want to compare to. I created a drawable object with it, and when I log it with toString, I get:
android.graphics.drawable.BitmapDrawable@41f95548
I am randomly selecting a button, and I want to keep randomly selecting until the image of the image button is not androi... | {} |
# Homework Help: Continuous topology problem
1. Jun 2, 2010
### beetle2
Let $(X; T )$ be a topological space. Given the set Y and the function $f : X \rightarrow Y$, define
$U := {H\inY \mid f^{-1}(H)\in T}$
Show that U is the finest topology on Y with respect to which f is continuous.
2. Relevant equations
3. T... | {} |
# A Notebook Zettelkasten
2»
• Very cool find! Instant Zettel material:
# 202102261003 Your first notes will suck in 20 years time
#zettelkasten #quality
It may be inevitable that your first notes will not hold up to
scrutiny 10 or 20 years from now.
Cyberneticist Ross Ashby (1903--1972) left behind 25 volumes of ... | {} |
# Numerical discretization and the Schrodinger equation, for a simulation
i'm solving numerically the Schrodinger time dependent equation, in this case simplified to one dimension, and i don't know at all how to discretize it, or if what i have done its okay.
$$i\hbar\frac{\partial }{\partial t}\psi(x,t)=-\frac{\hbar... | {} |
# Effective ways of teaching regex to students who know Java
My students are knowledgeable about Java but need to know something about Regular Expressions. Many students find them difficult and intimidating. The students don't need to know every detail, but do need to know enough to work effectively and learn more.
W... | {} |
F_1_panel.stripplot {lattice} R Documentation
## Default Panel Function for stripplot
### Description
This is the default panel function for stripplot. Also see panel.superpose
### Usage
panel.stripplot(x, y, jitter.data = FALSE,
factor = 0.5, amount = NULL,
horizontal = TRUE, groups = NULL,
...,
identifier = "str... | {} |
## mathmath333 one year ago How many 4 digit numbers are there whose decimal notation contains not more than 2 distinct digits ?
1. mathmath333
\large \color{black}{\begin{align} & \normalsize \text{ How many 4 digit numbers are there whose decimal notation}\hspace{.33em}\\~\\ & \normalsize \text{ contains not more t... | {} |
# Does a compact semilocally simply connected geodesic space have the homotopy type of a CW complex?
Does a compact semilocally simply connected geodesic space have the homotopy type of a compact CW complex? Actually what I'd like to know is whether the fundamental group of such a space is finitely presented.
Edit: A... | {} |
1. The increase in pressure required to decrease the 200 L volume of a liquid by 0.004% (in kPa) is (Bulk modulus of the liquid ==2100 MPa)
Maharashtra CET 2006 Mechanical Properties Of Solids
AFMC 2010 Atoms
3. To draw maximum current from a combination of cells, how should the cells be grouped?
AFMC 2006 Current ... | {} |
# Contains Duplicate II in C++
C++Server Side ProgrammingProgramming
Suppose we have an array and an integer k, we have to check whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the absolute difference between i and j is at most k.
So, if the input is like [1,2,4,1] and k =... | {} |
# quartz禁止一个工作任务还没执行完，下一个工作（同jobkey）就开始执行的方法
@DisallowConcurrentExecution
public class IncrCrawlJob implements Job {
/** logger */
note:
• 该时间段应该执行几个任务还是会执行几个任务，即使上一个任务执行完毕后已经超过该时间段
@DisallowConcurrentExecution is an annotation that can be added to the Job class that tells Quartz not to execute multiple instances... | {} |
## LaTeX forum ⇒ LyX ⇒ Wrong page numbers in ToC of unnumbered sections Topic is solved
Information and discussion about LyX, a WYSIWYM editor, available for Linux, Windows and Mac OS X systems.
sascq
Posts: 2
Joined: Wed Aug 21, 2019 10:50 pm
### Wrong page numbers in ToC of unnumbered sections
Hi all,
I am a LyX ... | {} |
JEDNOSTKA NAUKOWA KATEGORII A+
# Wydawnictwa / Czasopisma IMPAN / Studia Mathematica / Wszystkie zeszyty
## Differentiation of Banach-space-valued additive processes
### Tom 147 / 2001
Studia Mathematica 147 (2001), 131-153 MSC: 47A35, 47D03, 46E30, 46E40. DOI: 10.4064/sm147-2-3
#### Streszczenie
Let $X$ be a Ban... | {} |
Project Euler 22: Names scores using dictionary
I solved Project Euler 22 using Python 3. The problem reads as follows:
Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing over five-thousand first names, begin by sorting it into alphabetical order. Then working out the alphabetical ... | {} |
# Equations of state¶
## Base class¶
class burnman.eos.EquationOfState[source]
Bases: object
This class defines the interface for an equation of state that a mineral uses to determine its properties at a given $$P, T$$. In order define a new equation of state, you should define these functions.
All functions shoul... | {} |
Question
If the gauge pressure inside a rubber balloon with a 10.0-cm radius is 1.50 cm of water, what is the effective surface tension of the balloon?
$3.68 \textrm{ N/m}$
Solution Video | {} |
# Question on division field of abelian variety
I am wondering if the following holds or not.
Let A be an abelian variety of dimension $d\geq 1$ over $\mathbb{Q}$. Then there is a positive number c depending on d and A such that $[\mathbb{Q}(A[n]):\mathbb{Q}]\geq c^{w(n)} n^2$ where $w(n)$ is the number of distinct p... | {} |
# Programmatically Illustrating an Expansion Permutation
Based on the discussion over here, I drew this:
With this code:
\documentclass[tikz,border=3.14mm]{standalone}
\usepackage{tikz}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pgfdeclarelayer{background}
\pgfdeclarelay... | {} |
# Prove that external charge has no net flux on a gaussian surface mathematically
I understand how the field lines enter and leave the gaussian surface. But my concern is that the field isn't constant everywhere on the gaussian surface, i.e, there exactly doesn't exist an $$- E\cdot da$$ corresponding to every $$E\cdo... | {} |
Is this puzzle like a mathematics exercise?
Result: Thanks to Dan Russell’s thoughtful answer and others’ constructive comments, the puzzle statement has been reupholstered, the puzzle has been reopened, and a complete solution is imminent.
Original post
The rainbow mystery below was readily understood by three post... | {} |
# Thread: Equation of perpendicular bisector
1. ## Equation of perpendicular bisector
Next Question .... Sorry :P
The line with equation x+3y=12 meets the x and y axes at the points A and B respectively. Find the equation of the perpendicular bisector of AB
2. This requires a couple of steps. The words look all goo... | {} |
# How do you solve log_2x+log_2 3=3?
Aug 21, 2016
I found: $x = \frac{8}{3}$
#### Explanation:
You can condense the two logs and write:
${\log}_{2} \left(3 x\right) = 3$
use the definition of log and write:
$3 x = {2}^{3}$
$3 x = 8$
$x = \frac{8}{3}$
Aug 21, 2016
$x = \frac{8}{3}$
#### Explanation:
As ${2}^{3} ... | {} |
Domain and Range
1. Jun 21, 2007
kuahji
Find the domain & range of the function.
2x^2 + 4x - 3
I attempted to solved doing the following
2x^2 + 4x = 3
x^2 + 2x = 3/2 (divided by two)
(x+1)^2 = 5/2 (completed the square & added one to both sides)
(x+1)^2 - 5/2 = 0
So I put the range was (-5/2, infinity), but the ... | {} |
Adobe Photoshop 2022 (Version 23.0.1) Crack+ [2022]
Tip
You may need to choose the Rectangle tool or Ellipse tool instead of the Brush tool to draw the image you’re going to use in place of the photo.
9. **Click once anywhere on the canvas to select the entire image with the Rectangle or Ellipse tool.**
If you choo... | {} |
### Turbulent drag reduction by oblique wavy wall undulations
File Description SizeFormat
Title: Turbulent drag reduction by oblique wavy wall undulations Authors: Ghebali, Sacha Item Type: Thesis or dissertation Abstract: The turbulent flow past a horizontal wavy wall, positioned at an angle to the main flow directi... | {} |
# Text Images
## What are text images
Text images are just arrays of numbers stored in a tab-delimited file (https://en.wikipedia.org/wiki/Tab-separated_values), where each location in the file is a pixel and the value stored there is the pixel intensity.
## What are they good for?
### You might need to read them
... | {} |
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