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How unique?
Sometimes, when we check unique entries of vector we would like to know how many times each value occurs. Given vector of num...

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Bleed non-zeros to the right using REGEXP, and that sort of cheatcodess...
This one is quite similar to <http://www.mathworks.nl/matlabcentral/cody/problems/1998-bleed-non-zeros-to-the-right>. But thi...

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Schrödinger dog
Everyone knows that dogs are less unpredictable than cats. But is that proven? Is that measurable at all? YES! NOW IT IS! ...

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Insert certain elements into a vector.
We start with vector V. Some values W will be inserted into V, at positions U. Say, |V| contains |[1 2 3 4 5]| and |W| is |[0...

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Find the day for a date
Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

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A Poker Hand
Texas Hold ‘Em is a classical card game. In this problem, we are concerned with determining the probability of attaining a certa...

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Finding fourier transform of a given vector
Find the fourier transform of a given input vector for ex a=[1 2 3 4] then y=[ 10.0000 + 0.0000i -2.0000 +...

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Insert structure in a parameter-cell array.
When creating Matlab GUI elements, you can mix value pairs with structures in the list of input arguments, e.g. |uicontrol('t...

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Only once: cleaning up your columns
We have a logical array (with ones and zeroes). It is simple: after processing every column may only contain a single true value...

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Convert binary numbers to hexadecimal numbers
Function must convert the input vector x composed of 0 and 1 (length is a multiple of 8) in hexadecimal. Most significant bit is...

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remove nans fast
There are several ways to locate and remove nans in a matrix, and return an 1d row vector. In this problem the challenge is ...

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Strange Number Algorithms
Three integer numbers will be provided to you. Write a function to Step1: Multiply first number by 3. Step2: Add 6 with t...

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A matrix of introverts
You are given a matrix full of numbers who happen to be very shy. Write a MATLAB function that will put a square of zeros aroun...

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A matrix of extroverts
Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

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Split a given string from the first instance of a given character
A simple operation to split a given string into two substrings at the point where the desired character is first found. e.g. ...

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surface of parallelogram
Given 2 vectors of each 3 elements, determine the surface of the parallelogram which can be created from these 2 vectors.

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return row and column indices given 2 values which define a range
Inspired by problem <http://www.mathworks.co.kr/matlabcentral/cody/problems/856-getting-the-indices-from-a-matrice> Inputs: - ...

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Who is the baby and who is the daddy in this family?
Given an array of numbers that shows the characteristcs of all family members, find who is the baby and who is daddy in this fam...

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distance to a straight line (2D) given any 2 distinct points on this straight line
Given 2 points P1,P2 on a straight line and a 3rd point, determine the distance of the 3rd point to the straight line. Your answ...

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Finger Counting
Just counting numbers using fingers. First all my ten fingers are closed. I will say 1 and open my one finger. Likewise for 6...

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Reverse within string
If input is a string 'yellow' the output should be 'leywol'. Locate the middle of the string and reverse the first (yel) and sec...

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Replace pattern 0 1 0 and 1 0 1
Find and replace a pattern in a row of zeroes and ones. * Find 1 0 1 and replace it with 1 1 1 * Find 0 1 0 and replace it w...

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Largest territory
Determine whose territory is largest. If there are multiple numbers tied for the largest territory, return the smallest number. ...

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Concatenate a successive power matrix in a column matrix
Generate F = [M1 M^2 ... M^p] with M a matrix, without using for.

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Minimal cost
A power house, P, is on one bank of a straight river W meters wide, and a factory, F, is on the opposite bank L meters downstr...

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Slicing the cube
A bored matlab enthusiast has a cube with volume n^3. He decides to paint the entire surface of the cube red. Then, with slices...

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Which way to go?
Given an m*n grid, How many ways are there to go from upper left corner to the lower right one? You can only move right...

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Rainbow matrix
Create a "rainbow matrix" as described in the following examples Input = 3 Output = [ 1 2 3 2 3 2 ...

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Speed of light:Experiment
in 1849, Fizeau set up an experiment to measure the speed of light. The discription of this experiment can be found on wikipedi...

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Find my birthday
Given a birth date x, find my age when my birth day will fall on the same day as I was born. So if I was born on Monday, what a...

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