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61 items for Category:Business
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This post has a impact factor of 1 and 622 pageviews

Ride the Waves of Volatility with Ray Barros

It is important to have the trading wisdom and develop skills to remain relevant in any investment climate in order to secure one’s financial future. Especially with the recent economic uncertainties and escalating political tension in the world, volatile markets seem to be here to stay.  As such, Phillip CFD organised a special presentation with Mr Ray Barros on 30th April 2011 to help guide our clients on a step-by-step ...

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phillipcfd 27 Jun 11
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This post has a impact factor of 19 and 749 pageviews

Denver SEO Consultant Profile at Google & Linked In

We have created a Denver SEO Consulting web profile at Google to add to our web content that is indexed in popular search engines.  SEO Consultant services are critical if business owners are wanting to get their websites to attain top rankings in search engines through the process of organic search engine optimization.  By providing affordable SEO services we can help the maximum amount of clients succeed and create improved ...

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coloradoseo 03 Mar 11
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This post has a impact factor of 13 and 832 pageviews

How to sum sin(n q) and cos(n q)?

This is a short how to about how to sum sin(n q) and cos(n q).

ross_tang 02 Sep 10
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This post has a impact factor of 28 and 634 pageviews

How to prove e^At e^(-At_0) = e^A(t-t_0)?

Given that A is a matrix, I would like to ask how to show:

Thank you very much.

sciencolic 26 Aug 10 |2 answers
3
96
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This post has a quality rating of 3, base on 1 rating
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This post has a impact factor of 96 and 1134 pageviews

How to solve (2x+1)^2 y'' -2 (2x+1) y' +4 y = 0?

I would like to know how to solve the following differential equation (you may refer to this post for the original question):

Thank you very much.

sciencolic 19 Aug 10 |1 answer
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35
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This post has a impact factor of 35 and 979 pageviews

Sum of subsets with k elements having a total sum of r

This question is a mirror of the question Sum of subsets which I found interesting. The problem is like this:

Let , how many subsets with k elements that are having the sum of value r?

For instance, if n = 6, k = 3, r = 10:

The following sets: ...

sciencolic 19 Aug 10 |1 answer
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11
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This post has a impact factor of 11 and 436 pageviews

Betting your grade with Money

If you think you can get good result for your exam, you may bet on it with Ultrinsic.

ross_tang 13 Aug 10
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30
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This post has a impact factor of 30 and 1163 pageviews

Repeated sum and partial difference equation

This paper is inspired by this post. It asked how to count the number of solutions of the equation with non-negative integral solution:

x_1 + ... + x_k = n

without using the standard method of line and dot counting. I transform the problem into a partial difference equation, ...

ross_tang 08 Aug 10
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36
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This post has a impact factor of 36 and 700 pageviews

One upload dialog - Two targets ?

I have already created image handling functions:
An upload reciever (filebrowserUploadUrl) and an image browser dialog (filebrowserBrowseUrl)
- Both work perfectly 

BUT of course my users want more... ...

T4NK3R 06 Aug 10 |2 answers
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This post has a impact factor of 14 and 1371 pageviews

Finding nth derivative of the function sec x + tan x and partial difference equation

I tried to find the n-th derivative of the function sec x + tan x in a specific form, and a partial difference equation arises from it. An attemp to solve the equation is stated in another article: Reducing a partial difference equation into a partial differential equation and solving for the generating function using method of characteristics

ross_tang 27 Jul 10