content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Rearranging a fixed point equation
May 24th 2010, 02:12 PM #1
Newbie
Joined
Feb 2009
Posts
11
Rearranging a fixed point equation
Hi, sorry if this is a silly/simple question! But i've been banging my head against it for a while. There's an example of a fixed point equation in my course book that gives $\... | 4 | [
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Exponential Growth and Decay
Exponential growth can be amazing!
Let us say we have this special tree. It grows exponentially, following this formula ... | 4 | [
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Centre of Mass
You are here
Centre of Mass
The centre of mass (/gravity) of a body or a system of particles is the resultant of the weights of the individual particles making up the body or system.
Uniform Bodies
A uniform body is a body whose density is the same throughout the body. Finding the centre of mass of u... | 5 | [
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Experiment of the Month
Black Body Radiation and the I-V Characteristics of an Incandescent Lamp
Our labs do not have written instructions. In keeping with this spirit, the description given here will be brief and general. The intent is that each performance of the lab will be unique; in each
nature will reveal a sli... | 4 | [
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e
Aerospace Trajectory Optimization Using Direct Transcription and Collocation
06 Nov 2012 (Updated 07 Jul 2014)
Demonstrates the solution of an aerospace trajectory optimization problem.
dto_trap.m
% dto_trap.m June 22, 2013
% t... | 4 | [
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Precision Triangular-Wave Generator Uses a Single IC
Precision Triangular-Wave Generator Uses a Single IC
By: Akshay Bhat, Senior Strategic Applications Engineer
© Jun 28, 2010, Maxim Integrated Products, Inc.
Abstract: This application note outlines the implementation of a single-supply, triangular wave oscillator ... | 4 | [
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Check my Derivatives =)
March 6th 2007, 07:23 PM #1
Junior Member
Joined
Mar 2007
Posts
38
Check my Derivatives =)
I hope I did these right... thanks in advance!
g(x) = (3x-2)/(2x+1)^(1/2)
g'(x) = (9x-1)/(2x+1)^(5/2)
y = sin(cos(tan(x))^(1/2))
y' = [-cos^2(tan(x))^(1/2)sin(tanx)^(1/... | 5 | [
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scipy.interpolate.LSQUnivariateSpline
scipy.interpolate.LSQUnivariateSpline¶
class scipy.interpolate.LSQUnivariateSpline(x, y, t, w=None, bbox=[None, None], k=3)[source]¶
One-dimensional spline with explicit internal knots.
Fits a spline y=s(x) of degree k to the provided x, y data. t specifies the internal ... | 4 | [
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IntroductionMulti-Sensing EnvironmentImproved Kalman FilterThe Kalman FilterImproved Kalman Filter Using a Neural NetworkSimulation ResultsSimulations for the Kalman FilterSimulations for Improved Kalman FilterExperimental ResultsConclusionsReferencesFigures and Tables
In the field of Radio Frequency Identification (RF... | 4 | [
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Coxeter
Coxeter groups
Part II. Word processing
... | 4 | [
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Speed Distance Time for Dummies
There’s been quite a bit of talk recently on the numerical reasoning tests at OASC, along with people asking how to do the sums quickly in your head – so here we go.
Top Tips!
Know your times tables as best you can.
Learn the following time/speed patterns
There ar... | 4 | [
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Modular Exponentiation
Suppose we are asked to compute $3^5$ modulo $7$. We could calculate $3^5 = 243$ and then reduce $243$ mod $7$, but a better way is to observe $3^4 = (3^2)^2$. Since $3^2 = 9 = 2$ we have $3^4 = 2^2
= 4$, and lastly
\[ 3^5 = 3^4\times 3 = 4 \times 3 = 5 \pmod{7}. \]
The second way is better be... | 5 | [
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Issue COMPLEX-ATAN-BRANCH-CUT Writeup
Forum: Cleanup
Issue: COMPLEX-ATAN-BRANCH-CUT
References: CLtL p.208, 212
Related issues: IEEE-ATAN-BRANCH-CUT
Category: CHANGE
Edit history: Version 1, 13-Dec-88, Steele
Problem description:
The formula that defines ATAN results in a bra... | 4 | [
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How To Calculate Square Footage
If math makes you feel off-colour, it is depressing to say, you can certainly not get away using mathematics in your normal life. Like now you have to calculate the square footage-maybe of your room
or your garden. Identifying how to do this easy calculation will be very useful. It is ... | 4 | [
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Sum of perfect cubes
January 3rd 2010, 08:47 PM #1
Senior Member
Joined
Apr 2009
Posts
306
Sum of perfect cubes
Prove there are infinitely many positive integers which cannot be represented as a sum of three perfect cubes
hmmm how do you go about this question using contradiction?
Okay, I'm not... | 4 | [
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ELECTROMECHANICAL ENERGY CONVERSION
CHARACTERISTICS OF DC GENERATOR
The following are the three most important characteristics of a d.c. generator:
1. Open Circuit Characteristic (O.C.C.)
This curve shows the relation between the generated e.m.f. at no-load (E0) and the field current (If) at constant speed. It is ... | 4 | [
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Solving the Cubic with Cardano - Depressing the Cubic
Depressing the Cubic
The problem Cardano set himself in Chapter 14 of the Ars Magna is [Cardano 1662, p. 253]:
Let, therefore, the cube ae, in the figure of Chapter 12, equal six times the square on ac and 100.
Symbolically, this is \(x^3=6x^2+100.\)
Cardano fir... | 5 | [
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A hard question that popped up in the exams 8years ago!
Member
Registered: 2007-02-23
Posts: 6,868
Re: A hard question that popped up in the exams 8years ago!
Member
Registered: 2007-08-16
Posts: 8
Re: A hard question that popped up in the exams 8years ago!
you could probably use this:
http:... | 4 | [
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U substitution with integral
December 14th 2011, 01:05 PM #1
Newbie
Joined
Dec 2011
Posts
4
U substitution with integral
Integrate 4 + 2x(1+x^2)^3 dx from x=0 to 1
I tried u substitution with u = 1 + x^2 and du = 2x dx and got 7.75, but the answer in the back of the book says 19. What did I do wrong... | 5 | [
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ation
Consider a PDE problem with two independent variables and one dependent variable, , and consider the list of infinitesimals of a symmetry group.
In the input above you can also enter the symmetry without labels for the infinitesimals, as in , or use the corresponding infinitesimal generator
The equation invari... | 4 | [
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covariant derivative with frame field
May 8th 2010, 02:31 PM #1
covariant derivative with frame field
In $\mathbb{R}^3$ let $E_1, \ E_2, \ E_3$ be a frame field, with $W=\sum f_iE_i$, show that $abla_V W=\sum_j \bigg{(}abla_Vf_i+\sum_i f_i\omega_{ij}(V)\bigg{)}E_j$
So what I have so far is: $abla_V W=abla_V ... | 4 | [
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Surface Area and Volume
The lateral area of a cylinder is the area of
its curved surface, excluding the area of its bases. Figure 18-15 illustrates an experimental method of determining the lateral area of a right circular cylinder.
The card of length L and width W in figure
18-15 is rolled into a cylinder. The hei... | 4 | [
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Logic Circuits
As has been emphasized many times, the circuits of a computer are based on the laws of logic rather than the laws of arithmetic --- the computer is a logic machine. At the hardware level the computer
is made up o... | 5 | [
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Items tagged with kernel
Hi,
I have an error how can I fix the error. Thank you.
Matrix_Fred:=proc(N,d,lambda)
local Kernel,K,Fredholm,phi,MatA,eq2,eq3,eq4,Vct_basis,fct,sys,M,b,M1,Vect_beta,W,i,beta,alpha,eq5,eq6,x,Subs1,Fredholm_stencil,Stencil,w,V,sys1,sys2,Subs2,sys3,Sol_phi;
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equation of a tangent question
January 27th 2010, 07:35 AM
shawli
equation of a tangent question
Consider the function $f(x)=3x^2-5x+k$. The equation of the tangent to the graph of $f(x)$ at $x=p$ is $y=7x-9$. Find $p$ and $k$.
January 27th 2010, 07:52 AM
Dinkydoe
Observe that $f'(p) = y'(p) \Leftrightarr... | 4 | [
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Multi-Factor Between-Subjects Designs
1. Define main effect, simple effect, interaction, and marginal mean
2. State the relationship between simple effects and interaction
3. Compute the source of variation and df for each effect in a factorial design
4. Plot the means for an interaction
5. Define three-way intera... | 5 | [
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s Last Theorem: n=4
Fermat’s Last Theorem: n=4
We prove Fermat’s Last Theorem for this case by showing $x^4 + y^4 = w^2$ has no solutions in the positive integers.
Suppose there is a solution. Then let $x,y,w$ be a solution with the smallest possible $w$. First note $x^2, y^2, w$ form a Pythagorean triple. Without lo... | 5 | [
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Paper Models of 3D Plots
3D Paper Physical Models
Recently John May wrote about exporting 3D plots to Minecraft. This takes one virtual form of a plot and converts it to a different virtual form. To take the idea a step further, how about exporting
3D plots to real physical models that you can hold in your hand? This ... | 4 | [
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The Mathematica Journal: Volume 9, Issue 1: What's New in
Mathematica 5
What's New in Mathematica 5
Symbolic Computations
DSolve
The function DSolve can now find all rational solutions to systems of linear equations with rational coefficients. It can also solve linear systems of differential equations with constant... | 5 | [
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A Stock Price Correlation Matrix
Originally developed by the statistician Karl Pearson, the correlation coefficient, also known as Pearson’s r, is meant to identify the degree of linear dependence between two variables. In
securities analysis, it can be utilized to measure the similarity between two stocks’ price movem... | 5 | [
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A certain company assigns employees to offices in such a way
Author Message
TAGS:
A certain company assigns employees to offices in such a way [#permalink] 08 Jan 2010, 13:18
... | 4 | [
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Implicit & Logarithmic differentiation problems.
October 23rd 2012, 10:21 PM #1
Newbie
Joined
Sep 2012
From
Ohio
Posts
14
#1. Find the derivative of: $e^x^y=sin(y^2)$
$lne^x^y=lnsin(y^2)$
$xylne=lnsin(y^2)$
$xy*1=lnsin(y^2)$
$y+xy'=lnsin(y^2)$
I need to use 2 chain rules on $lnsin... | 5 | [
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Nth Term Test Lesson Plans & Worksheets | Lesson Planet
Nth Term Test Teacher Resources
Find Nth Term Test educational ideas and activities
Showing 1 - 20 of 196 resources
In this fractions worksheet, students look at the fraction pattern and given the expression for the nth term. Students complete 10 problems.
In ... | 4 | [
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Very Simple Proofs
Re: Very Simple Proofs
Re: Very Simple Proofs
Then ab = (-1)gb = -(1g)b = -(gb)
You assume that (-a)(b) = -(ab). Prove it.
(-1)(-1)gh=(1)gh=gh
You assume that a negative times a negative is a positive. Prove it.
ab>0 [obviously positive]
Same. Positive times a positive is positive.... | 5 | [
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PCCP
petsc-3.5.1 2014-07-24
PCCP
a "column-projection" preconditioner This is a terrible preconditioner and is not recommended, ever!
Loops ... | 4 | [
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-
Role
Key Links
Video Lectures: Section A, Section B, Section C
Discussion Board: Catalyst
Compsoftbook: Online grading
Midterm (Wednesday 4/30 - 25% grade), Midterm Review (Monday 4/28)
Final (Wednesday 6/4 - 25% grade), Final Review (Monday 6/2)
Homework (50% grade):
Instructor
Steven... | 4 | [
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Standard Deviation and Normal Distribution
January 25th 2006, 09:17 AM #1
Junior Member
Joined
Jan 2006
Posts
29
Standard Deviation and Normal Distribution
Hi I know how to calculate standard deviation but am having trouble with questions the in the image. Please help.. Either 8 or 10 worked out would be... | 5 | [
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A First Course in Functional Analysis
Preface.
Acknowledgments.
1. Linear spaces and operators.
1.1 Introduction.
1.2 Linear spaces.
1.3 Linear operators.
1.4 The passage from finite-to infinite-dimensional spaces..
Exercises.
2. Normed linear spaces - the basics.
2.1 Metric spaces.
2.2 Norms.
2.3 The space ... | 4 | [
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tough DE theory problem
September 12th 2008, 10:56 AM #1
tough DE theory problem
Hey Gang:
I am going to ask a question this time. I got a hold of the book
Ordinary DE and Stability Theory by Sanchez I picked up for a song. It has some tough problems. I thought it would be a nice book, but the notation ... | 5 | [
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Example 8.4.18 (c): Finding Taylor Series by Differentiation
Start with a known series and differentiate both sides.
Example
Find a series for f(x) = ^2x/[(1-x^2)^2]
This time we need to find a function whose derivative is our function in question, and whose Taylor series we know. Experimenting on scratch paper for... | 5 | [
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Tips to crack GMAT Math
An interesting Problem Solving question from Number Theory
If the LCM of two numbers a and b is 1104 and their HCF is 4, which of the following MUST be true?
I. a * b = 4416
II. a and b are both divisible by 8
III. a : b = 48 : 23
A. I only
B. II only
C. I and III only
D. II and III only
E. I... | 4 | [
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Performing heat loss calculations on a structure
Dimensions (metres)
Length 30
Width 10
Eave height 2
Ridge height 3
'U' values (W/m2deg.C)
Walls (brick 228mm) 2.6
Roof (corrugated asbestos) 5.7
Floor (concrete... | 4 | [
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... | 6,141 | 6141 | |
trigonometry
How to proof , $<br /> (\sin x + \cos x)\sin 2x = \sqrt 2 <br />$ thanks
You probably meant to say "how to solve" instead "how to prove," since as it's written, it just holds for certain values, in fact, it's a trig. equation.
$(\sin x + \cos x)\sin 2x = \sqrt 2$ cannot be proved because it is not true. ... | 4 | [
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2.2 The Born-Oppenheimer approximation
Next: 2.3 Identical particles Up: 2. Many-body Quantum Mechanics Previous: 2.1 Principles of quantum   Contents
2.2 The Born-Oppenheimer approximation
The forces on both electrons and nuclei due to their electric charge are of the same order of magnitude, and so the c... | 4 | [
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Sum-Rich Circulants
June 2008
Summing beads on various types of numerical bracelets has been a recurring theme here over the past year or so. Generally, the summed beads have been adjacent and the totals arrived at more or less
predictable, leading to "sum-poor" magic tricks, e.g., see any of the April, August, or Oct... | 4 | [
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Items tagged with math
>
restart:
with(Optimization):
with(LinearAlgebra):
macro(LA= LinearAlgebra):
L:=1: r:=2: tau:= 1:
interface(rtablesize= 2*r+1):
Z:= Matrix(
2*r+1, 2*r+1,
[tau,
seq(evalf((L/(2*(iz-1)*Pi))*sin(2*(iz-1)*Pi*tau/L)), iz= 2..r+1),
seq(evalf((L/(2*(iz-1-r)*Pi))*(1-cos(2*(iz-1-r)*Pi*tau/L))), iz= r+2... | 4 | [
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Linear and angular acceleration of flywheel
August 6th 2011, 11:59 AM #1
Newbie
Joined
Aug 2011
Posts
14
Linear and angular acceleration of flywheel
Hi, I have the following question and was wondering if anyone could help:
A mass of 0.5kg is suspended from a flywheel, of mass 3kg, outside radius 0.3... | 5 | [
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Calculating K-corrections - CIAO 4.6 Sherpa v1
Calculating K-corrections using Sherpa
Sherpa Threads (CIAO 4.6 Sherpa v1)
Synopsis:
In this thread we demonstrate the use of the Sherpa calc_kcorr function to calculate K-corrections for any of the spectral models available from Sherpa. As an example, we calculate the ... | 5 | [
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Simple question for linear first-order differential equation. I can't move on!
September 17th 2011, 01:35 PM #1
Super Member
Joined
Nov 2008
Posts
597
Simple question for linear first-order differential equation. I can't move on!
Could someone please tell me how to do this simple question so that I can m... | 4 | [
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Neural Network - Multi Step Ahead Prediction
4 Answers
Accepted answer
Neural Network - Multi Step Ahead Prediction
Latest activity Answered
by
Greg Heath
on 25 Mar 2014
Hi all, please I need your help !
I've read all the posts here about Time Series Forecasting but still can't figure it out ! I'm drained.. :-(... | 5 | [
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Distributed Environment Control Using Wireless Sensor/Actuator Networks for Lighting Applications
Open Access This article is
• freely available
• re-usable
Article
Distributed Environment Control Using Wireless Sensor/Actuator Networks for Lighting Applications
NTT Energy and Environment Systems Laboratories, ... | 4 | [
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Trig sub intehral w/ completing the sq
September 9th 2008, 01:11 PM #1
Trig sub intehral w/ completing the sq
$\int \frac{dx}{(x^2+2x+2)^2}$
$u=x+1$ & $du=dx$
$\int \frac{du}{(u^2+1)^2}$
What should I do at this point? I considered expanding the square, but that seems to make things more messy and it... | 5 | [
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using Elementary Row Operations
Inverse of a Matrix
using Elementary Row Operations
... | 4 | [
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Quant Finance books forum
Hello all,
I would be very grateful, if someone could explain where and why I am wrong.
Just to repeat the question:
Assets A and B are worth 100 today. Asset A will be worth 110 tomorrow with probability 0.9 and 90 otherwise. Asset B will be worth 110 with probability 0.5 and 90 otherwise. ... | 5 | [
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How to find the critical points and local maxima and minima by only using the 1st derivative?
Find the derivative of f(x)=|(x^3)-8*(x^2)+5*x+4|-0.5*x;x in [-1,7]
Find critical points of f(x) and dertimine the local maxima and local minima.
Output: Two lists of points (x,y), a list of local minima and a list of local ... | 4 | [
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Project Euler 90: Using two cubes to make a square. | MathBlog
Project Euler 90: An unexpected way of using two cubes to make a square.
Written by Kristian on 31 March 2012
Topics: Project Euler
In the ninetieth problem of Project Euler we are back in combinatorics with a problem description that reads
Each... | 5 | [
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1. Introduction2. Substantiations of the Reality of the Law2.1. Empirical Approach2.2. Approach by Simulation2.3. Theoretical Approach3. Major Features of the Relationship3.1. Population-Level and Individual-Level3.2. Patient Components of the Effect Model3.3. Expressions of the Law3.4. Basis for the Effect Model Law C... | 4 | [
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0.0115966796875,
-0.013916015625,
-0.003814697265625,
-0.07958984375,
0.0712890625,
-0.0065... | 6,156 | 6156 | |
MathGroup Archive: July 2013 [00134]
[Date Index] [Thread Index] [Author Index]
How to combine an If statement with Statistics
• To: mathgroup at smc.vnet.net
• Subject: [mg131387] How to combine an If statement with Statistics
• From... | 4 | [
-0.06396484375,
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... | 6,157 | 6157 | |
Intermediate Value Theorem
October 3rd 2012, 09:45 AM #1
Member
Joined
Sep 2012
From
US
Posts
123
Intermediate Value Theorem
Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval.x^4 + x − 9 = 0, (1, 2)
f(x) = x^4 + x − 9
is ______... | 4 | [
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-... | 6,158 | 6158 | |
Dilation Lesson Plans & Worksheets | Lesson Planet
Dilation Teacher Resources
Find Dilation educational ideas and activities
Showing 1 - 20 of 188 resources
Working in pairs, geometry students will construct a dilation and consider the properties associated with the similar figures that are created to verify the pro... | 4 | [
0.01092529296875,
0.034912109375,
0.0106201171875,
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0.1044921... | 6,159 | 6159 | |
John D'Errico
To finish my comments...
Better is to use tools like rank or cond to tell if a matrix is numerically singular. LEARN TO USE THEM! Learn about the condition number of a matrix. Small numbers are good here. Bad condition
numbers in double precision will be on the order of 1e15 or larger.
In this case, see... | 5 | [
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-0.03222656... | 6,160 | 6160 | |
Codeforces VK Cup round 2: (ouch)
This was a very discouraging round to me. Well, I see a lot of problems out of my league. But for each of them, there are tons of people that solved it. That said, I have suspicions about a couple of
them.
Problem A
(
link
)
A quick dp problem to boot. I guess. There are a couple ... | 4 | [
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Eccentric Loading Shouldn’t Mean Shorter Life
Chris Blaszczyk
Manager of Product Development
Automation Components Div.
Misumi USA
Schaumburg, Ill.
Edited by Jessica Shapiro
The life of components in linear-motion systems (LMS) was discussed previously (Machine Design, Dec. 13, 2007, pp. 84-87). The systems represent... | 4 | [
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Converting from a polar equation to a cartesian equation
December 1st 2009, 02:54 PM
c.chav506
Converting from a polar equation to a cartesian equation
Hey guys here’s the equation that I had to convert from polar (r, theta) to Cartesian (x,y)…
r = 4 sin (theta)
and this is what I got…
(x^2 +y^2)... | 4 | [
0.006622314453125,
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... | 6,163 | 6163 | |
Logic
Main Links Orders Post Next Page Next + 10
Logic Problems back to home page.
I've made a page of logic problems by Robert Kraus.
Robert Abbott's 196... | 5 | [
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Derived Patterns in Binocular Rivalry Networks
Abstract
Binocular rivalry is the alternation in visual perception that can occur when the two eyes are presented with different images. Wilson proposed a class of neuronal network models that generalize
rivalry to multiple competing patterns. The networks are assumed to ... | 4 | [
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0.07... | 6,165 | 6165 | |
exponential growth/decay word problem
June 6th 2008, 08:38 PM
cityismine
exponential growth/decay word problem
When exposed to sunlight, the # of bacteria in a culture decreases exponentially at the rate of 10% per hour. What is the best approximation for the number of hours required for the initial # of
bac... | 4 | [
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Axioms
September 10th 2009, 08:48 AM
spaceship42
Axioms
Any ideas on how to do this one?
Let A be a set. Show that a complement of A does not exist. So I need to show that there isn't a set of all x not in A.
September 10th 2009, 08:55 AM
Plato
September 10th 2009, 08:57 AM
spaceship42
September 10th 200... | 5 | [
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-0.... | 6,167 | 6167 | |
How to display bode plot graph?
i'm doing my assignment project which is to display Glag lead compensator bode plot. i've already done the program. but somehow it does not show the output that i expected. it display the value of
Glag compensator and Glead compensator, however, the value of Glag lead compensator is zer... | 4 | [
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0... | 6,168 | 6168 | |
THE D&M PYRAMID ON MARS AND RICHARD HOAGLAND'S THEORIES ABOUT CYDONIA
UPDATES:
Letter to Richard Hoagland, dated August 28th, 2002
RCH Index
To the reader: For many years Richard Hoagland has been the most conspicuous proponent for the idea that the Face on Mars and various other formations in the Cydonia region ... | 4 | [
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September 2
Neil Sloan's
On-Line Encyclopedia of Integer Sequences
, which everyone who works seriously (or recreationally) with integer sequences regards as the ultimate authority, lists the triangular numbers as sequence
A000217
, and unambiguously includes 0 as a triangular number:
0, 1, 3, 6, 10, 15, 21, ... | 4 | [
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0.01422119140625,
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-0.04638671875,
-0.064453125,
-0.044677734... | 6,170 | 6170 | |
The Calculus Lifesaver: All the Tools You Need to Excel at Calculus
Welcome xviii
How to Use This Book to Study for an Exam xix
Two all-purpose study tips xx
Key sections for exam review (by topic) xx
Acknowledgments xxiii
Chapter 1: Functions, Graphs, and Lines 1
1.1 Functions 1
1.1.1 Interval notation 3
1.1.2 Findi... | 4 | [
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-0.03369140625... | 6,171 | 6171 | |
Math Help
August 14th 2007, 10:39 AM #1
Member
Joined
Aug 2007
Posts
239
Sets!
Prove that $A^{c} \subseteq B \Leftrightarrow A \cup B = U$ (universal set). From a previous part of the problem I already proved that $B \subseteq A^{c} \Leftrightarrow A \cap B = \emptyset$.
The problem then says to tak... | 4 | [
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... | 6,172 | 6172 | |
Insights Into Algebra 1 . Workshop 7
Lesson Plans:
Introduction
Lesson Plan 1: Be Direct - Oil Spills on Land
Lesson Plan 2: Very Varied - Inverse Variation
Download the Workshop 7 Guide
Lesson Plan 1: Be Direct - Oil Spills on Land
Supplies:
Teachers will need the following:
• chalkboard and overhea... | 4 | [
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0.033203... | 6,173 | 6173 | |
Help with nursing math please
1. 0
Nov 17, '06 by
fishchick72
Ok, I am at the end of my 3rd semester & have to submit a 4th semester math test & pass it before the end of this semester (which means I only have a couple of weeks to do so).
This is the hardest one for me, I don't have a clue how to ... | 4 | [
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... | 6,174 | 6174 | |
help for my son
June 14th 2013, 01:23 AM
Markthedad
help for my son
Can someone help me solve this for my son? I have gone blank!
I need to solve this for Y.
C.X^Y = P.Y
thanks
June 14th 2013, 01:38 AM
emakarov
Re: help for my son
As far as I know, Y(X) cannot be expressed in elementary fu... | 5 | [
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... | 6,175 | 6175 | |
Prove that the norm on L^2 space is continuous
January 26th 2009, 05:39 PM
Pur
Prove that the norm on L^2 space is continuous
Prove that the norm, ${\left\lVert \cdot \right\rVert}$, considered as a function ${\left\lVert \cdot \right\rVert}:\mathfrak{L}^2([-L,L],\mathbb{F})\rightarrow \mathbb{R}$ is continuous.... | 5 | [
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-0.09326171875... | 6,176 | 6176 | |
Does the Baker-Campbell-Hausdorff formula hold for vector fields on a (compact) manifold?
up vote 10 down vote favorite
5
Consider a compact manifold M. For a vector field X on M, let $\phi_X$ denote the diffeomorphism of M given by the time 1 flow of X.
If X and Y are two vector fields, is $\phi_X \circ \phi_Y$ nece... | 5 | [
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... | 6,177 | 6177 | |
Man Page log2.3m
NAME
exp2, exp10, log2, compound, annuity - exponential, loga-
rithm, financial
SYNOPSIS
cc [ flag ... ] file ... -lsunmath -lm [ library ... ]
#include <sunmath.h>
double exp2(double x);
double exp10(double x);
double log2(double x);
double comp... | 4 | [
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... | 6,178 | 6178 | |
Number Theory - Arithmetic Progression
Re: Number Theory - Arithmetic Progression
Re: Number Theory - Arithmetic Progression
How can I get them? Brute force?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consiste... | 4 | [
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0.03637695312... | 6,179 | 6179 | |
roof
1) We assume that the 4-color theorem is false (i.e., that there exist finite maps that require at least five colors), and show that that assumption leads to a contradiction. This means that the
assumption was incorrect and that four colors are therefore sufficient to color any finite planar map.
2) T... | 5 | [
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... | 6,180 | 6180 | |
Req. Help with Fractional Exponent Problem
January 24th 2008, 03:51 AM
Lovely07
Req. Help with Fractional Exponent Problem
Please tell me what I did wrong.
This is a question from my review packet.
The answer says it should be 2 with exponent 3/2
My attempt gives me this:
http://i30.tinypic.com/... | 4 | [
0.006439208984375,
-0.06982421875,
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0.012512207031... | 6,181 | 6181 | |
Normal Mapping
The following blog post, unless otherwise noted, was written by a member of Gamasutra’s community.
The thoughts and opinions expressed are those of the writer and not Gamasutra or its parent company.
[Originally from onemanmmo.com.]
I've spent quite a bit of time the last couple weeks piecing bits of ... | 4 | [
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0.0023651123046875,
-0.019653320... | 6,182 | 6182 | |
Partial Derivatives-Chain Rule
Let https://webwork.uncc.edu/webwork2_fi...b673817f81.png where https://webwork.uncc.edu/webwork2_fi...57ec26ce11.png https://webwork.uncc.edu/webwork2_fi...f1652843b1.png https://webwork.uncc.edu/
webwork2_fi...bae1b63c31.png https://webwork.uncc.edu/webwork2_fi...40e3095781.png?????? ht... | 4 | [
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0.009826... | 6,183 | 6183 | |
Volumes by Slicing
Some calculus texts compute volumes of solids by the method of "slices" before they discuss the methods of disks and shells. On the other hand, there are texts that start with disks and shells, then
throw in a few examples of slices. In any event, these calculations are supposed to be illustrations o... | 5 | [
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0.06542... | 6,184 | 6184 | |
Least Squares Data Fitting with Applications
While a graduate student at Georgia Tech, my favorite mathematics professor, Fred Andrew, asked the following question: What is the least squares fit for \(x\) to the two equations: \(x=0\) and \(x=1
\)?
The question is easy to understand, yet it’s obvious that no single va... | 5 | [
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Examples 5.2.7(a):
Consider the collection of sets (0, 1/j) for all j > 0. What is the intersection of all of these sets ?
The intersection of all intervals
(0, 1/j)
is empty. To see this, take any real number
x
. If
x
it is not in any of the intervals
(0, 1/j)
, and hence not in their intersection. If
x &... | 5 | [
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Webcam
MEASURING LOCH NESS WEB CAM PICTURES
Many people around the world enjoy looking at pictures of Loch Ness through the Scotland-Online webcam installed at Temple Pier, Drumnadrochit. People sometimes see things they cannot iden... | 4 | [
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Kernel Perceptron in Python
The Perceptron (Rosenblatt, 1957) is one of the oldest and simplest Machine Learning algorithms. It’s also trivial to kernelize, which makes it an ideal candidate to gain insights on kernel methods.
Perceptron
The Perceptron predicts the class of an input $\mathbf{x} \in \mathcal{X}$ with... | 4 | [
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0... | 6,188 | 6188 | |
TRICK
You want to send a valuable object to a friend& You have a box to send the object.
The box has a locking ring which is more than large enough to have a lock attached
You and your friend have several locks with keys.
Butthe problem is that your friend does not have the key to any lock that you have, and vice vers... | 4 | [
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Well Ordering principle
February 24th 2008, 01:46 AM
shaoen01
Well Ordering principle
Hi all,
I am having problem of trying to apply the well ordering principle. I know what it is, but i find it difficult to apply it. If anyone knows of any good website that has a lot of useful
information, please do le... | 5 | [
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SPIRIT OF MATHEMATICS
Uses of Differentiation
Increasing and Decreasing Functions
An increasing function is a function where: if x[1] > x[2], then f(x[1]) > f(x[2]) , so as x increases, f(x) increases. A decreasing function is a function which decreases as x increases. Of course,
a function may be increasing in some ... | 5 | [
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GMAT
Author Message
Post subject: Absolute Value - One Solution
EricUva Posted:
Thu Jun 28, 2007 11:43 am
Can you please elaborate on the rules for testing multiple solutions on a... | 4 | [
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How to Calculate Brake Bias
Almost as touchy a subject as the existence of the God (Higgs-Boson) particle, the true winner of a French civil war, or the effectiveness of nuclear proliferation in the middle east, is that of E46
///M3 brake bias.
I aim to clear the confusion by posting rationale, equations, diagrams, an... | 4 | [
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Maple 15 Questions and Posts
Hi,
1-Triying to plot a function divided by its maximum value,sometimes it works with some parameters that means, the max.value of the plot is 1.
But when i change the data the max. value in the plot in graeter than 1 which is wrong!! should be 1.
dont know why??
2- Changing different d... | 4 | [
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n the
The mathematics of pasta
Kenneth Chang contributed "Pasta Graduates from Alphabet Soup to Advanced Geometry" to the January 9, 2012 New York Times. Illustrated with Mathematica-generated images of specimens of cappelletti,
quadrefiore, mafaldine, fagottini, radiatori and funghini (selected from the 103 forms li... | 4 | [
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Black Powder BallisticsBlack Powder Ballistics
Black Powder Muzzleloading Ballistics
tsafa@aol.com
Testing was done under field conditions, not ... | 4 | [
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The Eight Queens Problem
Volume Number: 13 (1997) Issue Number: 12 Column Tag: Programming Techniques
One of the oldest and most familiar intellectual puzzles whose solution is uniquely suited to the computer is the eight queens problem, in which the goal is to systematically determine each of the 92
different ways ei... | 4 | [
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Proportionality in Similar Triangles: A Cross-Cultural Comparison - The Ancient Chinese Contribution
Ancient Chinese mathematics was often used to meet the imperial needs of engineering, land mensuration, calendar reckoning, military campaigns, and water control and conservancy [5, 7]. The oldest
extant Chinese mathem... | 4 | [
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Semicircle
Top
Semi Circle is a half round shape Geometry like half plate shape. Now we discuss different semi circle formulas and their uses–
Diameter of semi circle = 2 * (radius / 2
),
Suppose we have a semicircle, whose radius is 7 inch, then-
Diameter of the semicircle = 2 * (7 / 2),
= 7 inch.
So, diameter ... | 4 | [
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