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Count up then down
Create a function that produces counting up from 0 up to n then down to 0 n=2 --> 0 1 2 1 0 n=3 --> ...

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Angles of the hands of a clock
For this problem, consider an analog (or at least continuous digital representation) of a clock. Our clock is a 12 hour clock w...

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Prime Time
All you need to do here is submit your solution a prime number of seconds after the top of the hour. Any hour at all... Easy, ...

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Reference Index Number
Given a reference set R of elements (each unique but identical in type), and a list V of elements drawn from the set R, possibly...

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Simple Decoder Ring
The stereotypical _decoder ring_ is remembered as a cereal box prize from the 1950s. Kids learned about cryptography by startin...

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FizzBuzz
<http://c2.com/cgi/wiki?FizzBuzzTest FizzBuzz Test> The "Fizz-Buzz test" is an interview question designed to help filter out...

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linear least squares fitting
Inputs: * |f|: cell-array of function handles * |x|: column vector of |x| values * |y|: column vector of |y| values, same l...

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Handle to an array of functions
Given a cell array of functions that operate on scalars, it is required to return a function handle to process a vector of value...

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Apply a function array to an array of numbers
It is required to apply a cell array of functions to a numerical array, where the functions accept only scalar inputs. Exampl...

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Say something funny
Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

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Replace multiples of 5 with NaN
It is required to replace all values in a vector that are multiples of 5 with NaN. Example: input: x = [1 2 5 12 10 7] ...

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Insert zeros into vector
Insert zeros after each elements in the vector. Number of zeros is specified as the input parameter. For example: x = [1 ...

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Will there be a new leader?
Simply answer the title.

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Knights and Knaves (part 3)
_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knives and Knaves> _logical puzzles_. ...

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The Answer to Life, the Universe, and Everything
A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...

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Hangman (strategy)
What is the best strategy in a <http://en.wikipedia.org/wiki/Hangman_(game) hangman> game? Your job is to device a strategy t...

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Sort a vector
Sort a row vector without using MATLAB built_in function sort, descending or ascending as mentioned with t='de' or t='as'.

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2D - Mean Filter
Assume you are given an "image" matrix of size NxM. Reduce the image noise by implementing a mean filter window of size 9 (a 3x3...

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finding indices of a vector's elements
you have vector x,as input,sort it ascending by mathlab function or your own code,then in the new vector,sorted_x,for each eleme...

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Polynomial division
Divide a polynomial u by polynomial v and return the quotients only. Example: u = x^4+3*x^3+5*x+3 v = x^2+1 Answer: ...

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Hangman (easy)
What is the best letter to start a <http://en.wikipedia.org/wiki/Hangman_(game) hangman> game with? You are given a cell arra...

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rotating a matrix
if x is the input argument,rotate it 90 degrees without using rot90 function.

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Knights and Knaves (part 2)
_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knives and Knaves> _logical puzzles_. ...

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Knights and Knaves (part 1)
This is a Matlab adaptation of the <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> logical puzzles. You ...

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distance between two points
compute distance between two points,where it is in Cartesian, Polar or Spherical coordinates.

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Binpack Contest: Retro - - Best Packing
The <http://www.mathworks.com/matlabcentral/contest/contests/3/rules Full Binpack Rules and examples>. This Challenge is a pa...

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Wheat on a chessboard pt 2
If a chessboard were to have wheat placed upon each square such that x grains were placed on the first square and each successiv...

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Wheat on a chessboard pt 1
If a chessboard were to have wheat placed upon each square such that one grain were placed on the first square and each successi...

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matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

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

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