content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Measurement of the Capacity
Measurement of the Capacity
The methods just described enable us to compare the capacities of two condensers - that is, to determine the capacity of one in terms of that of a standard; just as Poggendorff... | 5 | [
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MATLAB
plotGratingLobeDiagram
System object: phased.ULA
Package: phased
Plot grating lobe diagram of array
Syntax
plotGratingLobeDiagram(H,FREQ)
plotGratingLobeDiagram(H,FREQ,ANGLE)
plotGratingLobeDiagram(H,FREQ,ANGLE,C)
plotGratingLobeDiagram(H,FREQ,ANGLE,C,F0)
hPlot = plotGratingLobeDiagram(___)
Description
pl... | 5 | [
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Surface Area
Surface Area, An Introduction
Introduction
You are in a rectangular room with a curvy roof overhead. You want to paint the roof, or apply shingles. What is the surface area of the roof?
Start by looking at the tiles on the floor. Each tile is one centimeter square, and all the tiles together establish t... | 5 | [
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Evaluate a Riemann sum
Your summand is: $\frac{n^2 + 4kn + 4k^2}{n^3} = \frac{1}{n} + \frac{4k}{n^2} + \frac{4k^2}{n^3}$ Now, of all of these the 1/n sum is going to be the most important because the sum of the other two
as n approaches infinity converges, whereas the 1/n series does not. So your series does not conver... | 5 | [
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Maya Mathematics, simple and ingenious. Fast to learn, easy as a game.
THE MAYA MATHEMATICAL SYSTEM
The decimal mathematical system widely used today around the world in schools and accredited online MBA programs originated by countin... | 4 | [
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New time dilation helps creation cosmology
A new solution of Einstein’s gravitational field equations I published in 2007^1 clarifies a new type of relativistic time dilation that I call achronicity, or ‘timelessness’. Here I explain
achronicity and show how it helps creation cosmology, offering new ways to solve the ... | 4 | [
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Introduction to Groups
Sets
Before reading this page, please read Introduction to Sets, so you are familiar with things like this:
• Set of clothes: {socks, shoes, pants, ...}
• Set of even numbers: {..., -4, -2, 0, 2, 4, ...... | 5 | [
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Problem
Try the below Percent problem from the free question set that comes with your GMATPrep® software. The problem itself isn’t super hard but the calculations can become time-consuming. If you find the
problem easy, don’t dismiss it. Instead, ask yourself: how can you get to the answer with an absolute minimum of a... | 4 | [
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Google Answers: calculus/derivatives/rates
Hello jcgerry,
Thank you for the interesting question. I shall explain how I solved
it.
First off, let us see what the clock looks like at 9 o'clock. At that
point in time, the minute hand will be at 12 and the hour hand will be
at 9, making the angle between them to be pi/... | 5 | [
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Relational Algebra - Example
Previous Page Up One Level
Lecture Slides available: PDF PowerPoint
Contents
Consider the following SQL to find which departments have had employees on the `Further Accounting' course.
SELECT DISTINCT dname
FROM department, course, empcourse, employee
WHERE cname = `Further Account... | 5 | [
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Proposition 3
If a straight line is cut at random, then the rectangle contained by the whole and one of the segments equals the sum of the rectangle contained by the segments and the square on the aforesaid
segment.
Let the straight line AB be cut at random at C.
I say that the rectangle AB by BC equals the sum of t... | 4 | [
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Characteristic and minimal polynomial properties
December 9th 2010, 05:36 PM #1
Member
Joined
Aug 2008
Posts
88
Characteristic and minimal polynomial properties
Consider a vector space V over $\mathbb{C}$ mapped to itself by the operator L. The characteristic polynomial is $c(\lambda)=(\lambda-1)^4(\lamb... | 5 | [
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How Claire's
How Claire's Teacher Guided Her to Persevere Effectively
by Dr. Margaret Taplin
... | 4 | [
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T
Dataplot Vol 1 Auxiliary Chapter
LEVENE TEST
Name:
Type:
Purpose:
Perform a k-sample Levene test for the homogeneity of variances across samples.
Description:
The F test used in analysis of variance problem with k factors can be sensitive to unequal standard deviations in the k factors. Levene's tes... | 5 | [
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Kabsch algorithm - File Exchange - MATLAB Central
File Information
% Find the Least Root Mean Square between two sets of N points in D dimensions
% and the rigid transformation (i.e. translation and rotation)
% to ... | 4 | [
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Prove problem
August 21st 2009, 07:05 PM #1
Junior Member
Joined
Aug 2009
Posts
33
Hi,
Could someone please explain how to do this:
Prove that n^5 - n is divisible by 10 for all positive integer n.
[Hint: a number is divisible by 10 if and only if it is divisible by 5 and ....]
thanks!
... | 4 | [
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EN 13537 temp rating
6:42 a.m. on May 30, 2011 (EDT)
Brumo
53 reviewer rep
135 forum posts
Here is an article about the EN 13537 norm. Some aspect will not be discuss as they are discussed elsewhere (see for example Mammut sleep well report).
I'll just discuss technical aspects and try to describe as precisely as ... | 4 | [
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Derivatives of Trig functions
April 21st 2010, 09:23 AM #1
Derivatives of Trig functions
So my calculus book gives me
$(\sin x)'=\cos x$,
and
$(\sec x)'=\sec x \tan x$.
I have to differentiate
$\sin 2t$
and
$3\sec^2 3t$.
So, for the first one, I would take $2t$ to be $x$ and get
... | 5 | [
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Gravitational Force of the Sun Book Review by John Lear
Gravitational Force of the Sun
Pari Spolter
... | 4 | [
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complex number
June 14th 2009, 04:42 AM #1
Junior Member
Joined
Jun 2008
Posts
51
complex number
given z=x+yi and $w=(z-4i)/(z+3)$, where z is not -3, has no real parts, show that
x^2+y^2+3x-4y=0
what does no real parts mean?
$w = \frac{x + iy - 4i}{x + iy + 3} = \frac{x + i(y - 4)}{(x + 3)... | 5 | [
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19-tone equal-temperament
19-tone equal-temperament and 1/3-comma meantone
[Joe Monzo]
19edo on standard 5-line musical staff
Below is a list of pitches in 19-edo, with letter nominals using "C" as the reference (as in the music notation illustrated above), showing the enharmonic equivalences which occur in 19-edo.
... | 4 | [
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IntroductionThe Need for Information Metrics for Statistical and Scientific InferenceEmpirical InformationStandard Prediction Power MetricsPrediction Power and the Law of Large NumbersThe Problem of Selection BiasExample: The BIC Optimal Model for a Small Sample from a Normal DistributionThe Empirical Information Metri... | 4 | [
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November 2
In a
previous post
I talked about ad serving, and why regression based approaches still dominate even though other approaches to cost-sensitive multiclass classification (CSMC) have lower regret bounds. In my view, it
comes down to practical issues, and an important practical issue in ad serving is that t... | 4 | [
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Calculus The Integral of 1 over X
There is one function where our integral formula does not work.
If we have the equation:
Then applying the rule would give us:
WOW! Try to make sense out of that!
On second thought, don't.
The real answer is:
OK, What's an "ln" ???
"ln" Lower Case "LN" is actually a special ty... | 5 | [
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0.018... | 6,023 | 6023 | |
Quick Review 4-5
Unit 4 - Objective 5 - Application of Right Triangles
Sometimes when solving problems involving trigonometry, we have to use the angle of elevation, which is the angle measured from the horizontal through which an observer would... | 4 | [
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Assembly Language - Division
The Reduced Instruction Set of all chips in the ARM family - from the ARM2 to the StrongARM - includes weird and wonderful instructions like MLA (Multiply with Accumulate: multiply two registers and
add th... | 4 | [
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Hypergeometric Orthogonal Polynomials and Their q-Analogues
The first and third authors are well known for The Askey-scheme of hypergeometric orthogonal polynomials and its q-analogue (hereafter referred to as KS), which first appeared in 1994 as a technical
report of the Delft University of Technology, and has been a ... | 4 | [
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Soil Moisture Profile Effect on Radar Signal Measurement
Open Access This article is
• freely available
• re-usable
Full Research Paper
Soil Moisture Profile Effect on Radar Signal Measurement
^2
Bureau de Recherches Géologiques et Minières (BRGM), 3- av. C. Guillemin, B.P. 6009, 45060 Orléans cedex 2, France
... | 4 | [
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Mathwords: Inverse Cosine
Inverse Cosine
cos^-1
Cos^-1
arccos
Arccos
The inverse function of cosine.
Basic idea: To find cos^-1 (½), we ask "what angle has cosine equal to ½?" The answer is 60°. As a result we say cos^-1 (½) = 60°. In radians this is cos^-1 (½) = π/3.
More: There are actually many angles that have c... | 4 | [
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Equation of the tangent line at that point
February 12th 2011, 04:44 PM #1
Member
Joined
Oct 2009
Posts
123
Equation of the tangent line at that point
Can someone please explain to me how to do this. It seems like a very straight forward question.
Find the slope of the tangent line to the graph of e... | 4 | [
-0.095703125,
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Lotto 649 sum frequency vs. bell curve - Lotto Forums
Lotto 649 sum frequency vs. bell curve
The sum frequency diagram for any lotto,n/N, tends to look like a bell shaped curve, but it is not a perfect normal cuve, often called a Gaussian curve or "the bell cure".
The difference is especially evident at the mean peak... | 4 | [
0.0263671875,
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0.03173828125,
-0.048828125,
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0.041015625,
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Piece of a rhombus
Hi;
This problem appears in another thread.
The brown circle is inscribed in the quadrilateral. There are 4 distinct green areas. Can you get the one on the farthest left?
We will solve this with Geogebra. First we will draw the figure. To do that we will need to find the coordinates of D and E.
... | 5 | [
0.060546875,
0.125,
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Trigonometric identity help
March 31st 2010, 07:54 PM
Bikkstah
Trigonometric identity help
Hi all,
I am stuck on proving these two problems:
(csc theta - sin theta)^2 = cot^2theta - cos^2theta
and
(1+cos2theta/cos^2theta)=2
I know I need to use double angle identities in the second one, ... | 4 | [
-0.0693359375,
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Feature Column from the AMS
How to Make a 3D Print
Mathematically speaking, the 3D print is constructed from a 1-dimensional path. This article will describe how to find that path...
Grand Valley State University
Email David Austin
Mail to a friend Print this article
Introduction
We frequently hear that we are i... | 4 | [
-0.115234375,
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0.01409912109375,
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... | 6,033 | 6033 | |
Posts about confidence intervals on Daniel J. Hocking
Blog Archives
I am comparing estimates from subject-specific GLMMs and population-average GEE models as part of a publication I am working on. As part of this, I want to visualize predictions of each type of model
including 95% confidence bands.
First I had to mak... | 4 | [
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0.040283203125,
0.06689453125,
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0.057861328125,
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0.0390625,
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-0.052... | 6,034 | 6034 | |
James Gregory and the Pappus-Guldin Theorem - Selections from the GPU (1)
James Gregory's Proof of the Pappus-Guldin Theorem is given in Proposition 35 of the GPU, but the groundwork for Gregory's proof is carried out in a series of propositions prior to that. A
translation of the complete work is available online here... | 5 | [
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An abstract introduction to Groups and Fields.
Hey MathIsFun, like I promised, an introduction to group theor and fields. I'll end this by basically attaching my other post on the number systems, with a bit of information added.
A simple question most people ask when learning any sort math is, "Why do we need to know... | 5 | [
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lucstrig
Luc's Trig problem
Juha Saukkola
Matthew Daly -- Tan[ArcCos[Tan[ArcCos[Sin[ArcTan[sqrt[x]]]]]] = sqrt[x-1], which gives you 1 and 0 by repeated iterations.
Roel Huisman -- http://www.homepages.hetnet.nl/~eomer/PForms/start.html On your site there was a problem about converting '3' into other numbers, using ju... | 5 | [
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-0.... | 6,037 | 6037 | |
Classification: PACSIntroductionHead Rotation RepresentationTwo-Step Speaker Localization-Orientation AlgorithmAcoustic Source LocalizationGCC-PHAT AlgorithmSRP-PHAT AlgorithmOrientational FeaturesGCC-PHAT-AOrientation Angle EstimationTwo-Step Particle Filter TrackingParticle Filter TrackingLocation TrackingState and D... | 4 | [
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0.062255859375,
0.12890625,... | 6,038 | 6038 | |
Equation with 3 variables (variables in denominator)
hello, hopefully i am putting thisin the right forum. i recently took a placement test to go back to school after 20+ years. i hadn't looked at algebra in a long time and had to reteach myself some
online to remember. while i did fairly well on the test one question ... | 4 | [
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0.05517578125,
-0.025024414062... | 6,039 | 6039 | |
Group theory problem
September 13th 2009, 05:31 PM #1
Newbie
Joined
Oct 2008
Posts
3
Group theory problem
Let G be a finite group and let I ={g in G: g^2 = e} \ {e} be its subset of involutions. Show that G is abelian if card(I) => (3/4)card(G).
I don't really know how to proceed with this problem a... | 5 | [
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... | 6,040 | 6040 | |
Unit Circle Word Problem
August 19th 2008, 11:53 AM #1
Junior Member
Joined
Feb 2008
Posts
74
Unit Circle Word Problem
This is reaally long. But I need help. I need the most help with word problems!!
Domingo decides to ride the ferris wheel at the carnival. When he gets into a seat that is at the bo... | 4 | [
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0.0400390625,
-... | 6,041 | 6041 | |
Theory of volume of solids/others
May 2nd 2009, 12:31 PM
ny_chow
Theory of volume of solids/others
Qs 1 of the 2008 AP Calculus AB exam,
found here
http://www.google.ca/search?q=AP+Cal...ient=firefox-a
(1st link)
why is a volume of the solid, the integral of the height of the function squared?
... | 5 | [
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IntroductionStudy area and dataStudy areaAirborne laser scanner dataForest inventory dataData pre-processingALS data pre-processingCo-registration of the forest inventory data to the ALS dataStem volume estimationMultiplicative stem volume modelRegression analysesCorrection of the logarithmic transformation biasValidat... | 4 | [
0.11279296875,
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... | 6,043 | 6043 | |
More Fallacies, Flaws and Flimflam
More Fallacies, Flaws, and Flimflam is the second volume of selections drawn mostly from The College Mathematics Journal column “Fallacies, Flaws, and Flimflam” from 2000 through 2008. The MAA
published the first collection, Mathematical Flaws, Fallacies, and Flimflam, in 2000.
As in... | 5 | [
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... | 6,044 | 6044 | |
MathGroup Archive: March 2003 [00602]
[Date Index] [Thread Index] [Author Index]
Re: Time-consuming series coefficients
• To: mathgroup at smc.vnet.net
• Subject: [mg40262] Re: [mg40230] Time-consuming series coefficients
• From: Dani... | 5 | [
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... | 6,045 | 6045 | |
Would You Like Math With That?
Last week, my friend Jon forwarded me this article posted on CNN’s Eatocracy blog. In it, writer Laurie Segall describes the number of possible burger combinations at a restaurant in New York City
called 4food. Using some elementary combinatorics and the brain power of her statistician ... | 5 | [
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-0.0306... | 6,046 | 6046 | |
Related Angles |Complementary|Supplementary|Adjacent|Linear Pair Angles|Examples
Related Angles
Related angles are the pairs of angles and specific names are given to the pairs of angles which we come across. These are called related angles as they are related with some condition.
Complementary angles:
When the ... | 4 | [
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Output order of eig(matrix)
On Oct 8, 9:40 pm, "Jeff " <spREMOVEHITSjef...@SIGNoptonline.net>
wrote:
> I tried to describe "wrong" as best I could. Unfortunately, half of the explanation was before my code, and half was after. Also, I'm still learning this stuff, and trying not to include too much
or too little info, a... | 4 | [
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... | 6,048 | 6048 | |
[Maxima] Further work on $specint
Dieter Kaiser drdieterkaiser at web.de
Sun Jun 1 13:40:25 CDT 2008
After some further work on $SPECINT I have reported that one problem of the 99
examples of EqWorld is open and some further examples have to be verified more
carefully.
Here is an example with sinh(2*sqrt(k*t)) which... | 5 | [
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0.05908203125,
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-0.005767822265625,
-0.0... | 6,049 | 6049 | |
[SOLVED] Limit of an Integral
November 28th 2009, 03:01 PM #1
Member
Joined
Jul 2008
Posts
119
[SOLVED] Limit of an Integral
Evaluate:
$\lim_{h \to 0} \frac{1}{h} \int_0^h {5e^{-x^2}dx}$
Let $f(x) = 5e^{-x^2}$, since f is continuous on [0, h] assuming h>0, I used the Fundamental Theorem of Calcu... | 5 | [
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0.005401611328125,
-0.0498046875,
-... | 6,050 | 6050 | |
Proposition 16
In any triangle, if one of the sides is produced, then the exterior angle is greater than either of the interior and opposite angles.
Let ABC be a triangle, and let one side of it BC be produced to D.
I say that the exterior angle ACD is greater than either of the interior and opposite angles CBA and ... | 4 | [
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0.... | 6,051 | 6051 | |
Matrix exponential - File Exchange - MATLAB Central
This method is based on expanding the exponential function on the negative real axis into a rational Chebyshev series. Calling rcexpmv(A,v) returns an approximation to expm(A)*v, i.e., the action of
the matrix exponential of A onto a vector v (or a block of vectors). ... | 4 | [
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0.01031494140625,
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Illustration of a Property of Polyhedra: That the Sum of the Angular Deficits at Vertices is equal to 4π radians
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ ... | 4 | [
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0.... | 6,053 | 6053 | |
quation by factoring
A quadratic equation is an equation that can be written as
ax ² + bx + c where a ≠ 0
A quadratic equation must have a squared term as its highest power
Examples of quadratic equations
• y = 2x² + 3x + 7
• y = 13x² + 2
• y = x² − 4x + 15
• y = −x² + 5
Examples of equation... | 4 | [
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Isaac Barrow (1630 - 1677)
From `A Short Account of the History of Mathematics' (4th edition, 1908) by W. W. Rouse Ball.
Isaac Barrow was born in London in 1630, and died at Cambridge in 1677. He went to school first at Charterhouse (where he was so troublesome that his father was heard to pray that if it pleased God... | 5 | [
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Unit Circle
The "Unit Circle" is a circle with a radius of 1.
Being so simple, it is a great way to learn and talk about lengths and angles.
The center is put on a graph where the x axis and y axis cross, so we get this nea... | 4 | [
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Quasi-Masked Forcing Kind of Magic Squares
February 2007
Have you ever had trouble remembering how to construct the unique (up to rotations/reflections) 3 by 3 magic square, shown on the left below, featuring the numbers 1 to 9 inclusive? Here's an easy
way to rediscover it. Start with the more "balanced" magic square... | 4 | [
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-0.0001926422119140625,
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Q Factor in Electrical and Electronics EngineeringQ Factor in Electrical and Electronics EngineeringQ Factor in Electrical and Electronics Engineering - Electrical Technology
Q Factor in Electrical and Electronics Engineering
Posted by: Electrical Technology 11/09/2013 in Basic Electronics, Basic/Important Electrical ... | 4 | [
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A Method Of Factoring Based On 1/N
Here's an interesting little algorithm for determining the prime factors of a natural number N = pq. For any positive integer N let T(N) denote the period of the base-B expansion of 1/N. If N = pq we
know that
... | 5 | [
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Compute Taylor Series for Univariate Expressions
Taylor series expansions serve for approximating an arbitrary expression by a polynomial expression around some value of a variable. Taylor series expansions approximate expressions for which the
derivatives up to infinite order exist around a particular value x[0] of a... | 4 | [
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0.064453125,... | 6,060 | 6060 | |
Monge Shuffle Cliques
October 2008
The Monge shuffle is a special way of mixing a packet of cards, which may give the impression of randomization if done sufficiently often. It's named after Gaspard Monge (1746-1818), the founder of
descriptive geometry, whose interest in it was piqued two centuries ago. For the sake ... | 4 | [
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Canonical Correlation Analysis
This article performs a canonical correlation analysis on financial data of country-specific Exchange Traded Funds (ETFs) to analyze the relationship between stock markets in developed and developing
countries. We conclude, using Bartlett’s statistic, that there is a significant relations... | 4 | [
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-... | 6,062 | 6062 | |
Simplifying help please!
December 9th 2007, 02:42 PM #1
Junior Member
Joined
Oct 2007
Posts
73
Simplifying help please!
here they are. THANK YOU! YOUR HELP IS WELL NEEDED!
1.) 3x^2(2x^3-5x+3)
2.) (3z+4) (3z-4)
3.) (2x-8) ^2
4.) 3y^4 - 5y^3 + 9y^2 all divided by 3y^2
5.) x^3 + 4x^... | 4 | [
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-0.07568359375... | 6,063 | 6063 | |
Connectedness and continuity
November 5th 2013, 07:12 PM #1
Member
Joined
Sep 2012
From
india
Posts
78
Connectedness and continuity
The following is a theorem from my book, but i don't think that i follow the proof given:
Theorem:
Every continuous image of a connected metric space is connect... | 5 | [
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-0.083007... | 6,064 | 6064 | |
Vector expressed in function of two other vectors.
September 24th 2010, 07:48 AM #1
Junior Member
Joined
Feb 2009
Posts
25
Vector expressed in function of two other vectors.
Hi!
This is for a homework I had to submit yesterday. I think I managed to answer all the questions correctly, except the last... | 4 | [
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0.00506... | 6,065 | 6065 | |
s
Previous: Chapter 6: Focal and parallel surfaces
Up: Table of Contents
Next: Chapter 8: Singularities and extrinsic geometry
Chapter 7
Projections to planes
Let X: M^n -> R^n+1 be an immersion. For each unit vector V in R^n+1, let g[V] be the hyperplane through the origin perpendicular to V, and let ^V: M^n -... | 4 | [
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... | 6,066 | 6066 | |
Linear Combination
Use Linear Combination to Solve Systems of Equations and Inequalities
Other Methods: Vocabulary, Possible Solutions Solver
Graphically Using Determinants
By Substitution
With Calculator ... | 4 | [
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Rectangle Problems
Mrs. Napholtz's Math Site
Rectangle Problems
If the side of a square is increased by 3 m, its area is 121 m^2. Find the length of a side of the original square.
(s + 3)^2 = 121
s^2 + 6s + 9 = 121
s^2 + 6s - 112 = 0
(s + 14)(s - 8) = 0
s = 8 is the only reasonable answer.
The length of a rectan... | 4 | [
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4.3.9 - Cable rating calculation
The Regulations indicate the following sym... | 5 | [
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Homotopy Loop problem
May 15th 2011, 05:54 AM #1
Member
Joined
Nov 2009
Posts
169
Homotopy Loop problem
Hi, the following is also known as the picture-nail problem.
Consider X = the euclidean plane with N holes. Explain how to construct a loop L in X that is not null-homotopic in X, but if you remov... | 5 | [
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Re: geostrophic current
[Thread Prev][Thread Next][Index]
Re: geostrophic current
Joe and Jason
Thank you very much for your mail and consideration.
I could convert World Ocean Atlas 1/4 to netcdf using
Jason Kurian's script.
Say tha... | 4 | [
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Azimuthal quantum number
From Wikipedia, the free encyclopedia
The Azimuthal quantum number (or orbital angular momentum quantum number, second quantum number) symbolized as ℓ (lower-case L) is a quantum number for an atomic orbital that determines its orbital
angular momentum. The azimuthal quantum number is the seco... | 4 | [
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... | 6,072 | 6072 | |
Nyquist Quadrature Frequency Shift Keying for Spectral Efficiency
The selection of a data modulation scheme for radio transmission usually involves a trade among a number of parameters, including communications efficiency (bit error rate (BER) vs. signal-to-noise
ratio), bandwidth efficiency and factors affecting the p... | 4 | [
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One tree many possibilities: Part 3
Introduction
When I first began publishing content on this blog, I wrote a couple of posts entitled One tree many possibilities that covered how to enumerate the sets produced by different counting techniques.
You can catch up on the idea in part one and the C# implementation in pa... | 5 | [
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How to find IP addresses and subnet number in a few seconds
How to find IP addresses and subnet number in a few seconds
When you know IP address and mask number, you sometimes want to know subnet number, subnet broadcast address and range of valid IP addresses. In common ways, you can find these by convert the IP
add... | 4 | [
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... | 6,075 | 6075 | |
To see a solution to a 2nd degree equation without using the regular formula
July 30th 2011, 12:01 PM
fysikbengt
To see a solution to a 2nd degree equation without using the regular formula
This might be a little to advanced for this forum, but I think it is a little bit to easy to post in linear algebra. My que... | 5 | [
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0.0247802... | 6,076 | 6076 | |
Application
Wavelets and Applications
Introduction
Wavelets are powerful tools that can be used in signal processing and data compression. Wavelet transforms are an excellent alternative to Fourier transforms in many situations.... | 4 | [
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IntroductionMaterials and MethodsMaterials: Metabolic Network ReconstructionsMethodsAlgorithm for Thermodynamic Analysis: StructureChecking Thermodynamic Viability by RelaxationIdentifying Loops by Monte CarloCorrecting the Flux Configuration: Local StrategyCorrecting the Flux Configuration: Global StrategyResultsA Tes... | 4 | [
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-0.046630859375,
-0.07128906... | 6,078 | 6078 | |
An
Aug
30
Given that I taught my first statistics course in something like 1987 , it’s surprising how much I am looking forward to teaching this fall. I gave up being a full-time professor in 1997. Both my
academic career and my consulting business were requiring my undivided attention and I had to choose one. I’ve ... | 5 | [
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-... | 6,079 | 6079 | |
Mastering Physics Solutions: A Simple Network of Capacitors
A Simple Network of Capacitors
Part A = 80.0 μC
Part B = 80.0 μC
Part B = 37.3 V
Solutions Below:
In the figure are shown three capacitors with capacitances C[1] = 6.00 μF, C[2] = 3.00 μF, C[3] = 5.00 μF. The capacitor network is connected to an appli... | 5 | [
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... | 6,080 | 6080 | |
Arbitrary Scrawl
I was thinking about the Mandelbrot set the other day - I cannot remember exactly why but this is the sort of thing that happens to someone who is a mathematician by nature. While I was growing up
computers were beginning to become commonplace in people's homes and the Mandelbrot set, being a pretty wa... | 4 | [
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... | 6,081 | 6081 | |
Bernoulli polynomials & Euler–Maclaurin summation
April 19th 2009, 07:59 AM
Last_Singularity
Bernoulli polynomials & Euler–Maclaurin summation
Could you please point me in the right direction for this problem?
Question: Use either Bernoulli polynomials or the Euler–Maclaurin summation formula to evaluate $1... | 4 | [
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... | 6,082 | 6082 | |
Decomposing Dual Scale Soil Surface Roughness for Microwave Remote Sensing Applications
Open Access This article is
• freely available
• re-usable
Article
Decomposing Dual Scale Soil Surface Roughness for Microwave Remote Sensing Applications
Received: 15 May 2012; in revised form: 28 June 2012 / Accepted: 30 J... | 4 | [
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Half Life Period, Solved Examples On Half Life Period - Transtutors
Half Life Period Assignment Help
Half-life period(T[1/2] or t[1/2])
The half-life period of a radioelement is defined, as the time required by a given amount of the element to decay to one-half of its initial value.
t[1/2] = 0.693/λ
Now since l is... | 4 | [
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-0.0751953... | 6,084 | 6084 | |
V Notch Weir Discharge Calculator and Equations
V-Notch weir (triangular weir) calculation is mobile-device-friendly as of January 21, 2014
Units in V-notch weir cal... | 4 | [
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-0.0805664062... | 6,085 | 6085 | |
Making a magic square matrix singular
4 Answers
Accepted answer
I don't think details are required since
A=magic(n)-ones(n)*((1+n*n)/2)
is changed into an antisymmetric matrix, any such A matrix must satisfy (basic math.. etc)
det(A) = -1^n * det(A)
since n is odd, det(A) must be zero (thus, A is singular). Chang... | 5 | [
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-0.06982421875,
0.025390625,
0.007110595703125,
... | 6,086 | 6086 | |
pecification
Assess model specifications by testing down among multiple restricted models using simulated data. The true model is the ARMA(2,1)
where is Gaussian with mean 0 and variance 1.
Specify the true ARMA(2,1) model, and simulate 100 response values.
TrueMdl = arima('AR',{0.9,-0.5},'MA',0.7,...
'Constant'... | 4 | [
-0.024169921875,
-0.031982421875,
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0.07666015625,
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0.015... | 6,087 | 6087 | |
ati
Submitted By Calculating Rings Per Coverage
Chainmailbasket_com Add to
Article Tags Site Favourites
Edit Dates
... | 4 | [
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Marnie, speak! Good girl.
Most pictures may be clicked to enlarge.
This tutorial picks up where the last tutorial left off and uses the formulas found in this spreadsheet. This tutorial can stand alone but may reference Excel skills covered more fully in previous
Excel tutorials. If you haven't used the program much, ... | 4 | [
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The Math of Online Music Trading
February 2002
The Math of Online Music Trading
The High Court may have put Internet music trading company Napster out of business, but illegal swapping of music files on the web continues unabated, with companies like Audiogalaxy, Kazaa,
Morpheus, and Winmx filling the void that Redwo... | 4 | [
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... | 6,090 | 6090 | |
No subject
Hi all,
re Jim's question about transmatches, and Scott's reply:
Scott correctly states that an L configuration gives the minimum loss, and
highest bandwidth matching network. If two resistances R1 and R2 are matched
with an L network, if all losses are in the inductor, and the inductor has a
given Q, the... | 5 | [
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Understanding the Basics of Delta Transformer Calculations
Transformer configuration names like “delta” and “wye” derive from the way the windings are connected inside the transformer. These connections determine the way the transformer will behave, and they
also determine the methods of calculation required for proper... | 4 | [
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fluid dynamics
February 28th 2009, 09:53 AM #1
Newbie
Joined
Feb 2009
Posts
7
I have been posed the question
The crests of rollers directly following a ship 67m long overtake it at intervals of 16.5 sec. It takes a crest 6 sec to traverse the length of the ship.
Find the wave length of the roller... | 4 | [
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0.0625,
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pl
New features and Maple 17 is the result of many thousands of hours of work by talented developers at Maplesoft as well as experts in research labs and universities all around the world. Maple 17
updates in offers numerous advancements in a variety of branches of mathematics that push the frontiers of mathe... | 5 | [
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IntroductionSamples and Measurement MethodologyResults and DiscussionMeasurement ResultsDiscussion and Numerical EstimatesEfficiency of ME InteractionsConclusionsAppendixReferencesFigures and Table
Figure 3(a,c,e) and Figure 4(a,c) (right axis) also present the calculated time dependence λ(H(t)) × λ[s]^−1 where λ = λ[1... | 4 | [
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ANOVA: Power and size
Power and effect size
In this section we return to 2 basic concepts which bear on interpreting ANOVA results: power and effect size. Power is the ability to detect an effect if there is one. Expressed as a quantity, power
ranges from 0 to 1, where .95 would mean a 5% chance of failing to detect ... | 4 | [
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-0.00897216796875... | 6,096 | 6096 | |
complex number question
October 25th 2006, 08:56 PM #1
Senior Member
Joined
Jul 2006
Posts
364
complex number question
1) Use De Moivre’s theorem to show that $(1 + i \tan(x))^5 = \frac{1}{\cos^5(x)} cis (5x)$
2) Hence, find expressions for cos (5x) and sin (5x) in terms of tan(x) and cos(x).
L... | 5 | [
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Function LOGAND, LOGANDC1, LOGANDC2, LOGEQV, LOGIOR, LOGNAND, LOGNOR, LOGNOT, LOGORC1, LOGORC2, LOGXOR
Syntax:
logand &rest integers => result-integer
logandc1 integer-1 integer-2 => result-integer
logandc2 integer-1 integer-2 => result-integer
logeqv &rest integers => result-integer
logior &rest integer... | 5 | [
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SOME THOUGHTS ON
LOG-PERIODIC ANTENNAE
Perhaps a more suitable name (or description) would be a selective multiple dipole array; or an "Isbell" antenna, in honour of one of its main conceptors; much in accordance with the well known
"Yagi-Uda" or "Yagi" antenna i.e. "Isbell" antenna (conceived at the University of ... | 5 | [
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... | 6,099 | 6099 |