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Periodic Table 101.
Given the atomic number (z), answer the symbol for that particular element of the <http://en.wikipedia.org/wiki/Periodic_table/ ...

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Justify the character string in center with proportional fonts
how to justify a string of character into center with proportional fonts? Example: x='justify string ' output is ' justif...

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How to count the number of coins in a image using erosion operator?
You might find Image Analyst's blobs demo to be helpful: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segment...

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How to convert a 1D vector in number?
>> barcode = [8 9 0 2 0 8 0 0 1 1 4 4 5]; >> n = polyval(barcode,10) n = 8902080011445 Or, without polyval: ...

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Acidity of vinegar and salts
Assuming: pH (potentia hydrogenii) = - log10(H+ ionic concentration in mol/Liter). For a buffer solution containing acetic acid ...

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Poker Series 02: isQuads
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is to...

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Elapsed time is -0.005204 seconds.
Write a function that takes less than zero seconds to execute, as measured using tic and toc. For repeatability, the test case p...

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Trickier Timing
You solution should return control to main program only when the current time ends in either a 5 or 0 (e.g. the current seconds ...

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Poker Series 01: isStraightFlush
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

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Adding and Subtracting UINT variables
Given UINT class variables output the correct solution to A-B+C. *Input:* A,B,C Three uint variables *Output:* solution ...

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Oh Zero Zero Zero!!!
Hello all, So you have to find the largest section of zeros in a vector and then find the length of those zeros and there start...

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Create an index-powered vector
Given a input vector x, return y as index-powered vector as shown below. Example x = [2 3 6 9] then y should be [...

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Find Rotated Substring
Given a string s1, find if a rotated version of s1 is present in a second string s2. For example, rotated version of some str...

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Make an N-dimensional Multiplication Table
*INSTRUCTIONS* This is a multi-dimensional variant of the normal multiplication table used to teach elementary students multi...

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Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

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Displaying Files using a Listbox in a GUIDE GUI.
Where exactly are you running into trouble? Posting your relevant code so far might help. As for displaying the files in the lis...

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Monty Hall
The classic Monty Hall "Let's Make a Deal" final showcase puzzle pits the contestant against three Doors. Behind one Door are dr...

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How long do each of the stages of the rocket take to burn?
A space rocket has 3 stages: - stage 1, s1; - stage 2, s2; - stage 3, s3. If s1 burns 3 x as long as s2 which burns ...

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Create One Large Eye of size N x N Quickly?
*<http://en.wikipedia.org/wiki/Aye_(yes) Aye !!!>*

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indexing cell array of arrays
cellfun(@(x)x(1:K),C,'uni',0) %Where C is your original cell array

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How to load MAt file into 3D matrix
The answer can be found in the documentation of the *load* function: _S = load(FILENAME) loads the variables from a MAT-file ...

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Figurate number triangle
Check whether the input matrix is a figurate number triangle: <http://mathworld.wolfram.com/FigurateNumberTriangle.html>

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how can i simplify this for loop?
Here's how you can get rid of the nested loops: a = []; for i = 1:2 x(1:5) = i; y(1:5) = (1:5) + 1; t = ...

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How do I preallocate this loop?
Here is the loop with preallocation: z = zeros(5,1) % preallocation for i = 1:1:5 z(i) = x(zipfind - 1 + i); ...

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Are all the three given point in the same line?
In this problem the input is the coordinate of the three points in a XY plane? P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) how can...

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Read data from string
>> x='abc123(xyz456)'; >> regexp(x,'(?<=\().+(?=\))','match') ans = 'xyz456' This command uses <http://www.ma...

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Segmentation violation error when I run a mex file
I need to call a Fortran file when I run matlab. The fortran file was provided by roms.org. I can use mex to generate .mexa64 us...

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How can I display the mirror image of text in a textbox?
Have you tried downloading and installing one of the "backwards" fonts available on many font sites and setting the 'FontName' p...

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Problem including tolerance and finding value of a certain term
If you're checking for a certain tolerance, you can, after each iteration, see if the value of your most recently calculated ter...

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Code formatting in the forum
Is there any way to have two levels of permissions for editing another user's question? At the moment, assuming there are no use...

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