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VBForums [RESOLVED] conditional formatting in excel 2007  
22:15 19-Jul-08   [Replies: 5, Views: 60]    By: merhaba
hi there, I use excel-2007 and I want to know if Is there any way to display the SUM of the highlighted items in a row? ...
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VBForums Assistance wanted in subject of "Discrete Mathematics"  
04:40 19-Jul-08   [Replies: 13, Views: 155]    By: freeze_sr
The lecturer is a she, and apparently the questions were set by the main college and that lecturer that set it is no more with the college. Some great story going on. For question 1, i'm going...
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VBForums Why are prime numbers used in Encryption  
11:17 12-Jul-08   [Replies: 2, Views: 110]    By: Name777
Prime factorization of a number is a difficult and tedious process which cannot be automated at a satisfactorily high level, especially for huge prime numbers and their multiples. Thus it cannot b...
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VBForums Do any cultures not count by decimal numbers  
23:43 11-Jul-08   [Replies: 4, Views: 115]    By: Name777
Yeah, but wouldn't a birthday cake with 2A on it look rather strange? ...
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VBForums Analytical expression (and proof) needed for limit of sum of series  
16:11 11-Jul-08   [Replies: 8, Views: 204]    By: EvoRob
Consider the following sum of a series: s(n,X) = sum for i = 1 to n of 1/(n+nX+i-1) Where, i and n are integers, and X is a free variable that may take any value >= 0. For example,...
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VBForums [RESOLVED] Limit of sum of series, proof required  
09:36 11-Jul-08   [Replies: 5, Views: 84]    By: EvoRob
By numerical analysis, I have determined that the limit as n tends to infinity of the sum over i = 0 to n-1 of 1/(n+i) is 0.693147 (i.e. ln(2)) Please can someone provide a step by step proof ...
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VBForums Same program same data different result  
06:33 5-Jul-08   [Replies: 8, Views: 180]    By: King Arthur
Without a doubt, the difference is caused by the way the two operating systems handle numbers. How, exactly, though i'm not sure. ...
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VBForums my encryption algorithm. But is it secure?  
19:59 4-Jul-08   [Replies: 10, Views: 193]    By: killo
I have devised an encryption algorithm, basically it goes like this: The key is taken and SHA-1 hashed. this creates a 40 key long string. this string is stored in an array with one character ...
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VBForums how calculate the center of a rectangule?  
08:49 22-Jun-08   [Replies: 8, Views: 361]    By: joaquim
Quote: Originally Posted by jemidiah Are you trying to convert between polar and rectangular? If not, more pictures overcome language barriers i'm so...
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VBForums Calc help  
11:46 19-Jun-08   [Replies: 1, Views: 202]    By: math magic
Hi I need help with the following questions. if you could help it would be greatly appreciated. Even if you could just get me started it would be great as that's where I'm stuck. A TV camera ...
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VBForums Binomial Theorem  
15:42 18-Jun-08   [Replies: 7, Views: 255]    By: 03myersd
I wonder if you're really supposed to go about solving 3rd degree equations even with a calculator, I'd say not. Therefore jemidiah's suggestion about Pascal's triangle is probably the way to go. ...
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VBForums rotate a point in math, in circule  
17:37 15-Jun-08   [Replies: 30, Views: 518]    By: joaquim
can anyone tell me how rotate on point in circule? i have some information, but don't give me the right resolts. please i don't know use Matriz, is more advanced and i never work with it. th...
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VBForums String Permutations  
05:47 15-Jun-08   [Replies: 4, Views: 217]    By: DanielLH
One way to make this IMO far more intuitive is to consider this algorithm: for each slot where a space *may* get put, write down a 1 if a space is included there or a 0 if it is not. Ex: "ABC...
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VBForums Help in Explaining POSIT algorithm (3D maths)  
08:50 12-Jun-08   [Replies: 7, Views: 311]    By: Anhar Hussain
Personally I don't know any math forums, but I do know a good physics forum with a math section, I'm sure you can get some proper help there: http://www.physicsforums.com/ [http://www.physicsforum...
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VBForums Calculating eigenvalues  
09:32 8-Jun-08   [Replies: 4, Views: 470]    By: boneill3
The eigenvalues you've found are correct, although I think you should not round them off. Using the quadratic formula you can easily find the eigenvalues to be 1+sqrt(2) and 1-sqrt(2). I think you...
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VBForums HTML Parsing?  
15:00 6-Jun-08   [Replies: 0, Views: 47]    By: high6
What would be the best way to parse html into elements? ...
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VBForums Having trouble with exponents and differentiation  
17:34 28-May-08   [Replies: 4, Views: 235]    By: Cadbury
S=10(1−e^-0.4A )(1−e^-t ) A = 3, t = 3 Question asks, What is the effect of a small increase in A, dA, while keeping t constant? Absolutely screwed with this one :P ...
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VBForums Differentiation problem  
01:05 28-May-08   [Replies: 3, Views: 144]    By: Cadbury
Ok, this is an economics maths question, I'll try my best to explain U = (x1)^3/4(x2)^3/4 Find the Marginal Rate of Substitution, (basically dx2/dx1), in terms of x1 and x2. (If it makes i...
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VBForums Triangle Problem  
15:49 25-May-08   [Replies: 4, Views: 167]    By: tarik666
Hey guys my uncle is a landscaper and he has a problem for me to solve. He has a house on a hill. The hills bottom is at the left and it ascends to the right. He has the height of that and at ...
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VBForums line that best fits  
01:48 24-May-08   [Replies: 13, Views: 416]    By: jcavigli
A mutual fund company has the following fee schedule: On 50 miillion they charge: 0.75% On 100 million they charge: 0.75% On 200 million they charge: 0.70% On 300 million they charge: 0....
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VBForums A "Simple" Plane Geometry Question  
16:07 23-May-08   [Replies: 14, Views: 296]    By: Code Doc
Alright I did some more thinking about this and I came up with a very simple solution, although I'm not sure if it actually works... I reasoned as follows: You know the total area of the circle, w...
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VBForums network therom  
00:52 23-May-08   [Replies: 24, Views: 395]    By: azzi
What does "ac thevenins" mean? If you need a tutorial in complex numbers from the ground up, this probably isn't the place because they're a huge topic. Maybe you could ask a teacher or ...
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VBForums Linear regression  
21:25 21-May-08   [Replies: 3, Views: 178]    By: InertiaM
Has anyone done any linear regression algorithms in VB.NET? I have a laser sensor which streams distance measurements via TCP. The minimum dimension is 700mm and the maximum is 3000mm. It tak...
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VBForums Physics problem... Maths related..  
14:40 21-May-08   [Replies: 16, Views: 245]    By: K-PRO
Hello everybody.... I have a question i have been trying to solve for the past 6 or 7 hours but had no luck.... lets assume we have a cannon.... that will fire a projectile with initial v...
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VBForums Minesweeper probability  
08:36 21-May-08   [Replies: 7, Views: 274]    By: Arachnid13
I don't really know if you can calculate some sort of lumped probability in that case, though it feels like you should be able to (that is, it seems like the two middle squares would have a higher...
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