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Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

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Back to basics 10 - Max Float
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

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Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!

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Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

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Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

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Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

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Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

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All your base are belong to us
Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

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Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

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Back to basics 12 - Input Arguments
Covering some basic topics I haven't seen elsewhere on Cody. Return a value equal to the number of input arguments to the fun...

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Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

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online extracting data from DB using MATLAB
Hello Neeloufar, Here is some very specific code that pulls all the data from url: <http://www.genome.jp/dbget-bin/www_bget?-...

más de 11 años hace | 1

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Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

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Logarithmic scale for colorbar
Hello Tom, My script plots sample data in logscale using "countourf", and both "YTick" and "YTickLabel" are set in "colorbar"...

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plotting simple one variable functions for beginner using fplot
Hello bluseky, Try "ezplot" instead: syms x1 real f=x1^3 ezplot(f,[-1,1]) If you require the use of "fplot", g...

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How do I correlate columns
Hello again, Kris, This function outputs a 925x90 matrix with individually computed linear correlation coefficients for each ...

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Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

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First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

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Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

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Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

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Omit columns averages from a matrix
Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

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Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

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How to use sum series in Matlab
I'm providing another solution to address the longer summation you have posted in my first answer. Please let me know if this s...

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Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

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How to use sum series in Matlab
Hello Atinesh syms i %Creat symbolic variable 'i' symsum(i^2, i, 1, 4) %Use symsum to run your summation operation Be...

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How to aggregate one column according to the other column in MATLAB?
%Built the reference MAT file from which your table is pulled product=[114,112,112,113,115,113,111,113]'; customer=[1 2 ...

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Multiplying structures together based on field names
Hello Oliz, I've played around with your structures, and I have multiplied _struct1.a_ through _struct2.b_ in the following w...

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Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

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