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# How do you graph y<2x+1?
##### 1 Answer
Dec 18, 2016
graph{y < 2 x + 1 [-10.0, 10.0, -5.00, 5.00]}
#### Explanation:
graph{y < 2 x + 1 [-10.0, 10.0, -5.00, 5.00]}
The solution is the blue shading under the dotted line.
The line separating the blue area is dotted because the inequality is a "less than" inequalit... | {} |
Non-standard model of arithmetic - why is adding new constants to the model acceptable?
I have a question about the following proof of existence of a model of non-standard arithmetic (taken from wikipedia):
The existence of non-standard models of arithmetic can be demonstrated by an application of the compactness the... | {} |
## 0 A letter is chosen at random from the letters of the word “ASSASSINATION”. The probability that the chosen letter is a vowel is in th
Question
0 A letter is chosen at random from the letters of the word
“ASSASSINATION”. The probability that the chosen letter is a vowel is in the form of 6/2x+1 Hence the value of... | {} |
# What are the numbers belonging to the Fibonnacci’s sequence?
#### short answers for big questions
The Fibonnaci’s sequence consists on a series of numbers which are found from the sum of the two previous numbers of the sequence beginning the series by 0 and 1, the sequence keeps on adding these two numbers in order... | {} |
August 24, 2017 Alfred
We are fortunate to be invited to speak at the 232nd Electrochemical Society Meeting (ECS). The meeting will be held October 1-5 2017 in National Harbor, MD. Please join us!
## Presentation Title:
Peltier Supercooling with Isosceles Current Pulses: Cooling an Object with Internal Heat Generati... | {} |
# Get all the images from a folder in PHP
PHPServer Side ProgrammingProgramming
The glob function can be used to get the images from a specific folder. Below is a sample code for the same −
The path to the image folder is specified and all the files that have a .png extension are extracted. They are displayed with t... | {} |
# Progess on a Problem/Conjecture of Sullivan?
In Sullivan's postscript to his MIT notes https://www.maths.ed.ac.uk/~v1ranick/surgery/gtop.pdf he describes some problems and conjectures, where Problem 4 is: "Analyze the action of Gal($$\overline{\mathbb Q}/\mathbb Q$$)on the smooth manifold structure set on a profinit... | {} |
Lesson 18 Worksheet Solutions
Problem 1.
… sequence $(x_n)$ in S there is a subsequence $(x_{n_k})$ which converges to some $x\in S$.
Problem 2.
… a sequence $(x_n)$ in S for which no subsequence converges to a point in S.
Problem.3.
A subset of $\mathbb{R}^n$ is compact if and only if it is closed and bounded (the ... | {} |
# How to Solve Perfect Square Trinomial?
A perfect square trinomial is formed by multiplying two binomials, which are the same. In this step-by-step guide, you will become more familiar with solving perfect square trinomials.
Perfect square trinomials are algebraic expressions with three terms that are obtained by mu... | {} |
# Binomial confidence intervals for rare events: importance of defining margin of error relative to magnitude of proportion
Confidence interval performance is typically assessed in terms of two criteria: coverage probability and interval width (or margin of error). In this work we detail the importance of defining the... | {} |
University of Calgary
# A computational technique for evaluating {$L(1,\chi )$} and the class number of a real quadratic field
## Authors
Hugh Williams
Broere, J.
Powered by UNITIS. More features. | {} |
Rounding a value from a function
Is possible I define a mathematical function f(x), for example, f(x) = sqrt(x), evaluate this function in a given point p=2 and round the result with 4 decimal places? I prefer use this code inside a tikz environment. My difficult is calculate the number m =1/2*f(p) with my function de... | {} |
# Indeterminate expression. Where?
Consider the following:
a[m_, n_, x_] :=
1/2^n (-1)^n/((2 n)!) Sum[Binomial[m, l] (m - 2 l)^(2 n), {l, 0, m}] x^(2 n)
a[m_, 0, x_] := 1
f[m_, x_] := Sum[a[m, n, x], {n, 0, Infinity}]
I'm totally clueless why Mathematica fills in $0$ for $x$ while I feed it $x = 1$!
-
Please als... | {} |
In fact, what if we did not have even the English words, … Double Negative. For example, suppose we know the following: "The sky is purple." The negation of a for all statement is a some statement. (whenever you see $$ν$$ read 'or') When two simple sentences, p and q, are joined in a disjunction statement, the disjunct... | {} |
# Amorphous 2D materials containing a conjugated-polymer network
## Abstract
Two-dimensional materials, such as layered compounds and nanosheets, have attracted interest for their characteristic structures and properties. If layered materials containing functional organic molecules are synthesized, designed nanosheet... | {} |
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# There is an electric field E in x - direction . If the work done on moving a charge of 0.2C through a distance of 2m along a line making an angle $\;60_{0}\;$ with x - axis is 4J . What is value of E
$(a)\;\sqrt{3}\;N/C\qquad(b)\;4\;N/C\qquad(c)\;5\... | {} |
Revision history [back]
Calling setModelConfiguration service within a gazebo plugin/controller
Hi, I'm trying to modify the gazebo_ros_laser plugin simply adding a function (just before the PutLaserData() method) to move the joint in a way that the sensor can tilt a certain angle and I'm using the gazebo set_model_c... | {} |
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It is currently 05 May 2016, 02:33
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
C... | {} |
## Algebra 1: Common Core (15th Edition)
The expression can not be factored because there are no factors of $18$ with a sum of $15$.
Attempting to factor the trinomial, we search for two factors of $ac=2\cdot 9=18$, whose sum is $b=15$ Factors of 18:$\quad 1,2,3,6,9,18$ 6 and 9 add to 15, but $6\cdot 9\neq 18.$ The ex... | {} |
# Interesting mathematical statements (1 Viewer)
#### InteGrand
##### Well-Known Member
I have always found fixed point theorems quite pretty.
Probably the most well-known one is the Brouwer fixed point theorem. One version of this states that if you have a continuous function f from a closed n-ball (eg the set of p... | {} |
# Finite element mesh coordinate lies outside solution interpolation function
I solve a finite element problem and then want to look at values at mesh nodes for further calculations. Unfortunately the solution interpolation function identifies some mesh coordinates as being outside the solution interpolation function.... | {} |
LaTeX doesn't recognise label for unnumbered section
I'm fairly experienced with LaTeX and can usually solve bigger problems with a quick Google but this one is driving me mad.
In my thesis I have unnumbered sections. I am trying to refer to a subsection by name, using the nameref package.
In my preamble I have \use... | {} |
## Engineering Reference — EnergyPlus 8.7
### Engineering Reference
EnergyPlus can model refrigerated case equipment consisting of a compressor rack, multiple refrigerated cases and walk-in coolers, secondary loop equipment, and optional heat reclaim air and water heating coils. The refrigerated case equipment models... | {} |
Home > Standard Deviation > Standard Deviation Relative Error
# Standard Deviation Relative Error
## Contents
Note: the standard error and the standard deviation of small samples tend to systematically underestimate the population standard error and deviations: the standard error of the mean is a biased estimator Wa... | {} |
# Properties
Label 2.163.abu_bgt Base Field $\F_{163}$ Dimension $2$ Ordinary Yes $p$-rank $2$ Principally polarizable Yes Contains a Jacobian Yes
## Invariants
Base field: $\F_{163}$ Dimension: $2$ L-polynomial: $( 1 - 25 x + 163 x^{2} )( 1 - 21 x + 163 x^{2} )$ Frobenius angles: $\pm0.0652307277549$, $\pm0.19262... | {} |
#### Volume 11, issue 5 (2011)
Recent Issues
The Journal About the Journal Subscriptions Editorial Board Editorial Interests Editorial Procedure Submission Guidelines Submission Page Author Index To Appear ISSN (electronic): 1472-2739 ISSN (print): 1472-2747
The cactus tree of a metric space
### Panos Papasoglu and... | {} |
# Proof 8: The sum of squares
The formula for the sum of squares is:
$$1^2+2^2+\cdots+n^2=\frac16 n(n+1)(2n+1)$$
It is useful because it converts a row of confusingly many terms (therefore the dots $\cdots$) into a tangible number of terms that we can calculate.
If the formula works, then it must work for any numbe... | {} |
Home > CCA > Chapter A > Lesson A.1.9 > ProblemA-92
A-92.
Translate the Equation Mat at right into an equation. Remember that the double line represents “equals.” Homework Help ✎
Tackle the Equation Mat corner by corner: top left, bottom left, top right, bottom right.
Remember, the problem does not ask you to simpli... | {} |
# Performing a growth curve analysis using eyetrackingR
#### 2018-02-14
Our Experiment: Each eyetrackingR vignette uses the eyetrackingR package to analyze real data from a simple 2-alternative forced choice (2AFC) word recognition task administered to 19- and 24-month-olds. On each trial, infants were shown a pictur... | {} |
+0
# Algebra Question
0
94
4
+180
One root of x^2+12x+k=0 is twice the other root. Find k.
Dec 12, 2019
#1
+19820
0
This might work for ya
(x+4)(x+8) roots -4 and -8 k = 32
Dec 12, 2019
#2
+180
+1
I see, I did this using Vieta's Formula and got the same answer. Thank you!!!
Dec 12, 2019
#3
+10708... | {} |
# Are amines amphoteric?
An amine can react with an acid just like any other base to form a salt:
$$\ce{RNH2 + HCl-> RNH3+ Cl-}$$
According to my textbook (unreliable), amines also react with bases just like any other acid:
$$\ce{RNH2 + NaOH -> RNH- Na+}$$
Do amines (if not all amines, at least the ones substitute... | {} |
# Propositional Logic: For which natural numbers $n$ are there elements of $\mathcal{L_0}$ of length $n$?
Let $\mathcal{L_0}$ be the smallest set $L$ of finite sequences of $\textit{logical symbols}= \{(\enspace)\enspace\neg\}$ and $\textit{propositional symbols}=\{A_n|n\in\mathbb{N}\}$ for $n \in \mathbb{N}$ satisfyi... | {} |
# converting 64400 to scientific notation with 3 significant figures
Question
converting 64400 to scientific notation with 3 significant figures | {} |
# Polar coordinates? Still not bad!
Geometry Level 3
Let b, d>0. The locus of all points $$P(r,\theta)$$ for which the line OP (where O is the origin) cuts the line $$r\ sin\theta=b$$ in Q such that PQ=d.
Note:This question is a part of set KVPY 2014 SB
× | {} |
# The Pauli Exclusion Principle for more than two particles, applied to the Coulomb Potential
Disclaimer: I've asked a very similar question before (which I can provide if desired, but it shouldn't contain anything that is not stated here), but it was downvoted and eventually deleted for reasons unknown to me (hence, ... | {} |
# naginterfaces.library.specfun.bessel_i1_real_vector¶
naginterfaces.library.specfun.bessel_i1_real_vector(x)[source]
bessel_i1_real_vector returns an array of values for the modified Bessel function .
For full information please refer to the NAG Library document for s18at
https://www.nag.com/numeric/nl/nagdoc_2... | {} |
## The Annals of Mathematical Statistics
### Some Invariant Laws Related to the Arc Sine Law
J. P. Imhof
#### Abstract
Let $\{X_i : i = 1, 2, \cdots\}$ be a sequence of random variables such that $X_1, \cdots, X_n$ are exchangeable and symmetric $(n = 1, 2, \cdots)$. Suppose that ties occur with probability zero am... | {} |
[eigen] how to create a "virtual" array or matrix?
• To: eigen@xxxxxxxxxxxxxxxxxxx
• Subject: [eigen] how to create a "virtual" array or matrix?
• From: David Roundy <roundyd@xxxxxxxxxxxxxxxxxxxxxxx>
• Date: Mon, 7 Jun 2010 12:20:09 -0700
• Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:... | {} |
# Symmetric probability distribution
(Redirected from Symmetric distribution)
In statistics, a symmetric probability distribution is a probability distribution—an assignment of probabilities to possible occurrences—which is unchanged when its probability density function or probability mass function is reflected arou... | {} |
# Revision history [back]
Use the base_ring method.
Here is an example.
Define a field.
sage: K = GF(7)
sage: K
Finite Field of size 7
A matrix over this field.
sage: M = random_matrix(K, 2, 2)
The matrix's base ring:
sage: KK = M.base_ring()
sage: KK
Finite Field of size 7
Check that it is the same as your... | {} |
# Docverter
Use Docverter’s REST API to convert your documents, lickety split.
# API Reference
## Languages
Docverter has an official Ruby Gem (Github). The API described here can of course be used by any language that can make HTTP requests.
## Conversions
The API has one endpoint:
POST http://c.docverter.com/c... | {} |
# Homotopy Type Theory axiom R-flat > history (Rev #3, changes)
Showing changes from revision #2 to #3: Added | Removed | Changed
## Definition
Axiom R\flat \mathbb{R}\flat: For a space $A$, $A$ is discrete if and only if for every universe const: \mathcal{U} A \to (\mathbb{R} \to A) is and an every locally$\mathca... | {} |
### Homomorphic encryption using RSA
I recently had cause to briefly look into Homomorphic Encryption, the process of carrying out computations on encrypted data. This technique allows for privacy preserving computation. Fully homomorphic encryption (FHE) allows both addition and multiplication, but is (currently) imp... | {} |
# Why is continuity so crucial in arithmetic/algebraic geometry? [closed]
I'm interested in the arithmetic/diophantine equation applications of arithmetic/algebraic geometry. From what I understand, many of the difficult/technical aspects of the latter theories (sheaves, cohomologies, schemes, ...) are due to the desi... | {} |
## Abstract
This chapter has four sections: 1. General and Prose; 2. The Novel; 3. Poetry; 4. Drama. Section 1 is by Maxine Branagh-Miscampbell; section 2 is by Eliza O’Brien; section 3 is by Matthew Ward and Paul Whickman; section 4 is by Chrisy Dennis.
## 1. General and Prose
Two of the major themes to come out of... | {} |
AT Line Eyes
# Can you see a line
Hoping that it’s not just me. Originally put this in the wrong group.🤦🏻♀️ Had a bleed on 19/11
/2
• I can see it x
• I see it when was af due
• Budda0709 said:
I see it when was af due
Would have been due 25th but I had a little bleed on 19th so thought that it may hove come earl... | {} |
# American Institute of Mathematical Sciences
2005, 2005(Special): 605-610. doi: 10.3934/proc.2005.2005.605
## A new regularity estimate for solutions of singular parabolic equations
1 Department of Mathematics, Iowa State University, Ames, IA 50011
Received September 2004 Revised February 2005 Published Septem... | {} |
Rates of change were also important. When an object moves at a constant rate of change, then “$$\text{distance} = \text{rate}\times\text{time}\text{.}$$” But what if the rate is not constant—can distance still be computed? Or, if distance is known, can we discover the rate of change? | {} |
It is currently 20 Nov 2017, 14:50
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
we will pick new questions that match your level based o... | {} |
# Characterizations and approximability of hard counting classes below #P
An important objective of research in counting complexity is to understand which counting problems are approximable. In this quest, the complexity class TotP, a hard subclass of #P, is of key importance, as it contains self-reducible counting pr... | {} |
# Question involving absolute function
I saw this interesting problem in a math puzzle forum:-
Find all integral values of $t$ such that the equation $|s-1| - 3|s+1| + |s+2| = t$ has no solutions.
How does one approach these kind of problems?
-
Divide into regions like so:
Case 1: Assume $s\ge 1$
$s-1-3(s+1)+(s+... | {} |
# Axigluon signatures at hadron colliders - High Energy Physics - Phenomenology
Axigluon signatures at hadron colliders - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.
Abstract: Axigluons are colored heavy neutral... | {} |
## Tutorial 7 – Obstacles
The Biot-Savart formula provides for a given set of curves $$\gamma = (\gamma_1,\ldots,\gamma_m)$$ a divergence-free velocity field whose vorticity is concentrated along these curves. This led to a simple algorithm to model fluids on entire $$\mathbb R^3$$. Here we present a way to treat obst... | {} |
Graphic Calc in 1974?
06-23-2014, 11:51 AM
Post: #6
Jeff O. Member Posts: 194 Joined: Dec 2013
RE: Graphic Calc in 1974?
(06-23-2014 04:59 AM)Matt Kernal Wrote: <<Sorry, I tried uploading the photos multiple times to the forum, but every time I tried to Insert Into Post then Preview Post, they just disappeared. I gav... | {} |
## LAME bitrate and lowpass filters
2
Is there a formula or chart that specifies what lowpass filter LAME will automatically invoke for certain bitrates? I've looked around the net and can't find anything on this.
And is there a specific logic that dictates said formula or chart, besides just listening tests?
1
De... | {} |
Compound intrest problem : PS Archive
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack
It is currently 02 Dec 2016, 22:48
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have... | {} |
# BLS hash as a group element exponent?
In BLS short signatures paper, the authors describe a hash function $H\colon\ \{0, 1\}^∗ → G^∗$, where $G$ is a Gap-Diffie-Hellman group.
They present a structure where a standard hash is used on a field element, and then mapped to a subgroup of $G$, later to be used in the secu... | {} |
## An introduction to mathematical finance.(English)Zbl 0944.91024
Cambridge: Cambridge University Press. xv, 184 p. (1999).
This book provides an excellent introduction to the mathematics of finance. It is very well written, each new topic is clearly presented with plenty of examples and exercises. Little or no backg... | {} |
# Center of normalizer of cyclic group
Given a Group of order $pm$ with $p$ the least prime dividing the order of $G$ and p does not divide $m$. Is it true that a $p$-sylow subgroup is contained in the center of its normalizer.
I think yes, because of the Action by conjugation of normalizer on a $p$ sylow, and from t... | {} |
# Study of $b\overline b$ correlations in high energy proton-proton collisions
LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2017). Study of $b\overline b$ correlations in high energy proton-proton collisions. Journal of High Energy Physics, 11:030.
## Abstract
... | {} |
# Rewrite the following as an equivalent logarithmic equation. e^{3}=20.0855 An equivalent logarithmic for e^{3}=20.0855 is ?
Question
Decimals
Rewrite the following as an equivalent logarithmic equation. $$\displaystyle{e}^{{{3}}}={20.0855}$$ An equivalent logarithmic for e^{3}=20.0855 is ?
2021-03-03
$$\displaystyl... | {} |
## Deduce the rational root theorem from Gauss’ Lemma
Use Gauss’ lemma to prove the Rational Root Theorem: If $R$ is a Euclidean domain with fraction field $Q$ and if $p(x) = \sum_{i=0}^n c+i x^i$ is a polynomial in $R[x]$, then any root of $p(x)$ in $Q$ has the form $\frac{a}{b}$ where $a|c_0$ and $b|c_n$.
Suppose $... | {} |
## Friday, March 14, 2014
### Albert Einstein: 135th anniversary
Albert Einstein was born 135 years day, on the $$\pi\approx 3.14$$ day in 1879.
He is a towering figure of modern physics. Your humble correspondent knows too much about him; many readers know too much about him, too. Many of us have been exposed to si... | {} |
# Math Help - Math problem but from Chemistry class..
1. ## Math problem but from Chemistry class..
This is actually from my Chemistry class, it's a word problem with basic algebra, so think it belongs in this section.
Here's the problem:
The aluminum in a package containing 75ft^2(2 is for square) of kitchen foil ... | {} |
U. A. Khan, "High-dimensional consensus in large-scale networks: Theory and applications," PhD Thesis, ECE Department, Carneigie Mellon University, Aug. 2009.
Abstract
In this thesis, we develop the theory of \emph{High Dimensional Consensus} (HDC), a general class of distributed algorithms in large-scale networks. H... | {} |
occasional meanderings in physics' brave new world
Name:
Location: New Zealand
Marni D. Sheppeard
## Saturday, June 07, 2008
### Neutrinos Again
A paper by Altarelli and Feruglio on tribimaximal mixing was mentioned in talks at Neutrino 08, so I thought I should take a look at it. They begin by describing the 3 di... | {} |
√x2 + 1 + √x2 – 2x + 3 = 3
│ x-4 │ - │ 2–0,5x│ ≤ 3
│5- x2-6 │= x2-5x-6
x2-2x+3 : x2-4x+3 > -2
2. For the first one, do you mean $\sqrt{x^2}$?
│ x-4 │ - │ 2–0,5x│ ≤ 3
You need to get rid of the mods here. You can get rid of it by establishing case analysis.
$x-4-(2-0.5x) \leq 3$
$4-x-(2-0.5x) \leq 3$
$x-4-(0.5x-2)... | {} |
# 考满分网
### 题目内容 收藏 纠错
4. Of the two leading real estate firms in ourtown—Adams Realty and Fitch Realty—Adams Realty isclearly superior. Adams has 40 real estate agents; incontrast, Fitch has 25, many of whom work only inpart-time. Moreover, Adams' revenue last year wastwice as high as that of Fitch and included home ... | {} |
## anonymous one year ago Hey, I need help with one question about ellipses. I have to go so a simple step by step for the situation and then with my numbers to plug in would be good. Please help quickly... The question is: Write the equation of an ellipse with center (-3,2); covertex (-8,2) and focus (-3,-10)
1. Lose... | {} |
• 3psilon
Dad dreamed that he put $1 on the first square,$2 on the second, $4 dollars on the third, and so on, doubling the amount each time.If it costs$65,535 to cover all the squares,how many squares were in Dad's dream?
Mathematics
Looking for something else?
Not the answer you are looking for? Search for more exp... | {} |
# Satan-Primes
who are they?
they are Primes containing 666
these are Satan-Primes:[46663,266677,666599,666683,616669]
these are NOT :[462667,665669,36363631,555]
# Plot
Every number bigger than 6661 has Satan-Primes behind him
# The Challenge
Given an integer n>6661 find the Satan-Prime behind (or equal) and clos... | {} |
# Recent posts tagged exam
1
please explain this with the ans 0.462.... all the coachings have given ans but not explanation
2
in both the conditions its not clear why 3*3*3-2 and 3*3*3-1 coming.Please explain on this point kindly.
3
It is mentioned in the question itself Consider an instruction pipeline with five sta... | {} |
# Circumcentering approximate reflections for solving the convex feasibility problem – Fixed Point Theory and Algorithms for Sciences and Engineering
#### ByG. H. M. Araújo, R. Arefidamghani, R. Behling, Y. Bello-Cruz, A. Iusem and L.-R. Santos
Jan 4, 2022
In [9], the following global error bound assumption on the s... | {} |
# Suppose that the average annual revenue of a small business is $120,000 with a standard deviation... Suppose that the average annual revenue of a small business is$120,000 with a standard deviation of $20,000. Assume that the revenue distribution is normal. 22. {Average Annual Revenue Narrative} What is the probabili... | {} |
# If $x^3 =x$ then $6x=0$ in a ring
Let $R$ be a ring with unity where
$$x^3=x,\;\;\; \forall x \in R$$
How do I prove that $$x+x+x+x+x+x=0$$
-
It holds even when $R$ has no unit. In fact the ring must be commutative. – PAD Dec 12 '12 at 21:30
So if $x^n=x$, then multiplication by $(m^n-m)$, with $m$ natural, annih... | {} |
# Graph and Queries
Time Limit: 10000/5000 MS (Java/Others)
Memory Limit: 32768/32768 K (Java/Others)
## Description
You are given an undirected graph with N vertexes and M edges. Every vertex in this graph has an integer value assigned to it at the beginning. You're also given a sequence of operations and you need... | {} |
# Category:Gaussian Hypergeometric Function
This category contains results about Gaussian Hypergeometric Function.
The Gaussian hypergeometric function is an instance of a generalized hypergeometric function, given for $\size z < 1$ by:
$\ds \map F {a, b; c; z}$ $:=$ $\ds \sum_{n \mathop = 0}^\infty \dfrac {a^{\ove... | {} |
## Rough Ideas on Categorical Combinators for Model Checking Petri Nets using Cvxpy
Petri nets are a framework for modeling dynamical systems that is very intuitive to some people. The vanilla version is that there are discrete tokens at nodes on a graph representing resources of some kind and tokens can be combined a... | {} |
# Thread: 1(1!)+ 2(2!) + 3(3!) + ... + n (n!)
1. ## 1(1!)+ 2(2!) + 3(3!) + ... + n (n!)
Find the sum: 1(1!)+ 2(2!) + 3(3!) + ... + n (n!)
Define: n! = n(n-1) (n-2)(n-3) ... (3)(2)(1)
thanks
2. Originally Posted by rcs
Find the sum: 1(1!)+ 2(2!) + 3(3!) + ... + n (n!)
Define: n! = n(n-1) (n-2)(n-3) ... (3)(2)(1)
t... | {} |
## The mechanics of crack-tip dislocation emission and twinning
Dislocation emission from a crack tip is a necessary mechanism for crack tip blunting and toughening. A material is intrinsically ductile under Mode I loading when the critical stress intensity $K_{Ie}$ for dislocation emission is lower than the critical ... | {} |
# This is the function xt 100 cos a b what is the
• Homework Help
• 8
• 94% (18) 17 out of 18 people found this document helpful
This preview shows page 7 - 8 out of 8 pages.
; this is the function x'(t)\$\$100cos(A).(b) What is the horizontal velocity if A=20 degrees?=
(c) What is the horizontal velocity if A=45 de... | {} |
# Precision And Recall
Precision and recall are metrics used to describe the performance of binary predictors.
Terminology Note
Precision and Recall are used extensively in Inforation retreival. In this context,
• relevant document = true instance
• retrieved document = true prediction
## Precision¶
Given a set o... | {} |
Journal topic
Atmos. Chem. Phys., 20, 699–720, 2020
https://doi.org/10.5194/acp-20-699-2020
Atmos. Chem. Phys., 20, 699–720, 2020
https://doi.org/10.5194/acp-20-699-2020
Research article 21 Jan 2020
Research article | 21 Jan 2020
# Atmospheric fate of a series of saturated alcohols: kinetic and mechanistic study
At... | {} |
In studies of gene-environment interactions, exposure misclassification can lead to bias in the estimation of an interaction effect and increased sample size. The magnitude of the bias and the consequent increase in sample size for fixed misclassification probabilities are highly dependent on the prevalence of the misc... | {} |
CoCalc -- Collaborative Calculation in the Cloud
Sharedsupport / 2016-07-06-062637-modsym.sagewsOpen in CoCalc
Examples for support purposes...
for N in [11..100]:
print N, dimension_cusp_forms(N), ModularSymbols(Gamma0(N),base_ring=GF(2),sign=1).cuspidal_subspace().dimension()
11 1 1 12 0 0 13 0 1 14 1 1 15 1 1 16 ... | {} |
# Prerequisites
For this little how-to I assume that you have Xen Cloud Platform (XCP) already installed and successfully configured. The first things to do will be
• creating and / or joining a resource pool,
• creating and attaching a storage repository and
• configuring the network (e.g. with bonding).
I will not... | {} |
# How to submit a set of tikz command with pgfkeys?
I would like to send a serie of tikz keys to a tikz path with the pgfkeys interface. I succeeded with the following code but is there a simpler way to do that ? Can I do the same thing with something like \draw[\prop] ... ? Actually I would like to avoid the scope en... | {} |
5
# Use the Pythagorean Theorem to find the length of the missing side Then find the indicated trigonometric function of the given angle. Give an exact answer with a ra...
## Question
###### Use the Pythagorean Theorem to find the length of the missing side Then find the indicated trigonometric function of the given... | {} |
# March 2020: "Top 40" New CRAN Packages
by Joseph Rickert
Two hundred ninety-six new packages made it to CRAN in March. Here are my “Top 40” picks in ten categories: Computational Methods, Data, Machine Learning, Mathematics, Medicine, Science, Statistics, Time Series, Utilities, and Visualization.
### Computationa... | {} |
# proof of tangents law
To prove that
$\frac{a-b}{a+b}=\frac{\tan(\frac{A-B}{2})}{\tan(\frac{A+B}{2})}$
$\frac{a}{\sin(A)}=\frac{b}{\sin(B)}.$
This implies that
$a\sin(B)=b\sin(A)$
We can write $\sin(A)$ as
$\sin(A)=\sin(\frac{A+B}{2})\cos(\frac{A-B}{2})+\cos(\frac{A+B}{2})\sin(\frac{A% -B}{2}).$
and $\sin(... | {} |
# Write n = a + b + c + ...
#### hxthanh
##### New member
$\boxed 1$ How many ways writing positive integer $n\;$ as the sum of the positive integers different each pairs? (no permutation)
Example: $6=6=1+5=2+4=1+2+3 \quad$ (4 ways)
$\boxed 2$ How many ways writing positive integer $n\;$ as the sum of the positive ... | {} |
# mcrl2/data/replace_capture_avoiding_with_an_identifier_generator.h¶
Include file:
#include "mcrl2/data/replace_capture_avoiding_with_an_identifier_generator.h"
## Functions¶
void mcrl2::data::replace_variables_capture_avoiding_with_an_identifier_generator(T &x, Substitution &sigma, IdentifierGenerator &id_genera... | {} |
# How do I skip slides in Beamer?
I have a beamer presentation for a long presentation, but I'd like to make a smaller presentation which skips some of the slides. Does beamer have a way to do that, or should I just comment out the source code for the slides I want to skip?
• If you cut the code and paste in new file... | {} |
# Look at the underlined part of each sentence. Below each sentence, three possible substitutions for the underlined part are given. If one of them (i.e.,) (a), (b) or (c) is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter (a), (b) or (c). If none of the subs... | {} |
# Tag Info
9
Consider any option, vanilla or exotic. In between fixing dates it satisfies the Black & Scholes PDE (for simplicity zero interest rate and dividends) $$\frac{1}{2} \sigma^2 S^2 \frac{\partial^2 U}{\partial S^2}(S,t)+\frac{\partial U}{\partial t}(S,t)=0$$ Let ${\cal V}(S,t) = \frac{\partial U}{\partial \... | {} |
# 8.2E: The Inverse Laplace Transform (Exercises)
## Q8.2.1
1. Use the table of Laplace transforms to find the inverse Laplace transform.
1. ( {3over(s-7)^4})
2. ( {2s-4over s^2-4s+13})
3. ( {1over s^2+4s+20})
4. ( {2over s^2+9})
5. ( {s^2-1over(s^2+1)^2})
6. ( {1over(s-2)^2-4})
7. ( {12s-24over(s^2-4s+85)^2})
8. ( ... | {} |
Immutable and mutable objects, references and the heap
# Immutable and mutable objects, references and the heap
An object whose state cannot change after it has been constructed is called immutable (unchangable). The methods of an immutable object do not modify the state of the object. In Kotlin, all number types, st... | {} |
# percentage
1. ### How to interpret Standardized Coeff Beta when DV (in %) is transformed using log feature?
Hello everyone, I am analyzing the influence of some stores attributes (e.g., quality, price, in-store service, communication ...) on customer loyalty (more precisely share of wallet = how much a customer all... | {} |
# Math Help - Exponential Function
1. ## Exponential Function
A statistical study indicates that the fraction of the electric toasters manufactured by a certain company that are still in working condition after t years of use is approximately $f(t) = e^{-0.2t}$.
a) What fraction of the toasters can be expected to fa... | {} |
Abstract and Applied Analysis
Oscillation Behavior for a Class of Differential Equation with Fractional-Order Derivatives
Abstract
By using a generalized Riccati transformation technique and an inequality, we establish some oscillation theorems for the fractional differential equation $[a(t)$ ${(p(t)+q(t)({D}_{-}^{\... | {} |
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