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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...

12 years ago

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Remove DC
Input x is the sampled signal vector, may have both AC and DC components. Output y should not contain any DC component. Examp...

12 years ago

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

12 years ago

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Back to basics 11 - Max Integer
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

12 years ago

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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 ...

12 years ago

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Change the sign of even index entries of the reversed vector
change the signs of the even index entries of the reversed vector example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4] example2...

12 years ago

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Add two numbers
Add two numbers (For beginners)

12 years ago

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Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

12 years ago

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Return area of square
Side of square=input=a Area=output=b

12 years ago

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Number of digits in an integer
Specifies how many digits in a given integer. Example: in=100 ==> out=3

12 years ago

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Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.

12 years ago

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What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...

12 years ago

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kmph to mps
convert kilometer per hour to meter per second

12 years ago

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Return 'on' or 'off'
When the input is true, return 'on', otherwise, return 'off'.

12 years ago

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High school cafeteria
Given an input vector of positive integers, return a row vector with the primes first (in increasing order) and the composites n...

12 years ago

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"mirror" matrix
Create n x 2n "mirror" matrix of this type: e.g. for n = 2 m = [1 2 2 1;1 2 2 1] e.g. for n = 3 m = [1 2 3 3 2 1...

12 years ago

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Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

12 years ago

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Output any real number that is neither positive nor negative
Output any real number that is neither positive nor negative

12 years ago

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Number of Circles in a Number
Given a number, return the number of closed 'circles' in the base 10 numerical representation. Note: the number 4 has no circ...

12 years ago

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Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

12 years ago

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Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

12 years ago

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sum of non-primes
The sum of the non-primes below 10 is 1+4+6+8+9+10=38 Find the sum of all the non-primes below the input, N.

12 years ago

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Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

12 years ago

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Find max
Find the maximum value of a given vector or matrix.

12 years ago

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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!

12 years ago

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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 ...

12 years ago

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

12 years ago

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Create an 8-color version of an image
This problem was inspired by a tweet I saw from @MATLAB regarding <http://www.mathworks.com/matlabcentral/fileexchange/37816-the...

12 years ago

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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 [...

12 years ago

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06 - Matrix Equations 3
Define the matrices _aMat_, _bMat_, and _cMat_: <<http://samle.dk/STTBDP/Assignment1_3a.png>> ( _aMat_ = 9x9 matrix full o...

12 years ago