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Encoding Google Maps Polylines
This problem is based on the Google Polyline Encoder algorithm. This is how Google Maps encodes a line for display on a map. You...

20 days ago

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Get to a number faster.
If you start with $1 and, with each move, you can either double your money or add another $1, what is the smallest number of mov...

20 days ago

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Quine : write a quine in MATLAB
Quine is a type of program whose output matches the source code. See: <https://en.wikipedia.org/wiki/Quine_(computing) Quine in...

20 days ago

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Play Games of Beggar My Neighbor
Beggar my neighbor, as it is most commonly referred to, is a simple deterministic card game. A standard 52 card deck is shuffled...

20 days ago

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Compute the comma transform of an integer sequence
Consider the sequence formed by the multiples of 19: 19, 38, 57, 76, 95, 114, 133, 152, 171, 190, 209, 228,… A new sequence ca...

20 days ago

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Convert sorting indices to ranks

21 days ago

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Fast Fourier transform algorithm
Your task is to implement the Fast Fourier transform algorithm, without using builtin MATLAB fft commands e.g. fft, fft2, or har...

21 days ago

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Find the centre of an arc and its radius
Given two points on an arc (x0,y0) and (x1,y1) and the angle between them, alpha. Return the centre of the circle and the radiu...

21 days ago

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X O X Oh!
_This follows on from problem 44850 - X O X O_ <https://www.mathworks.com/matlabcentral/cody/problems/44850-x-o-x-o> On a...

21 days ago

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Moving Median Absolute Deviation
The median absolute deviation (MAD) is defined as MAD = median(abs(A − median(A))) for a rolling window of length n. For examp...

21 days ago

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Writing Error Messages
Well written functions check inputs to make sure the input is valid. The function ErrorCheck takes three arguments: * a - a s...

21 days ago

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Exact binary matrix factorization
Given a binary-valued (only ones and zeroes) MxN matrix C, and K (where K<M and K<N) find a binary-valued MxK matrix A and a bin...

21 days ago

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rot45 : a different aproach
Inspired by problem 1840. http://www.mathworks.com/matlabcentral/cody/problems/1840-rotate-matrix-clockwise-45-degree Given an...

21 days ago

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Design matrix from eigenvalues
Write a function that takes one input argument n and outputs a (n x n) square matrix A with the following properties: -A has...

21 days ago

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Mix it up!
Given an input string S, return a new string B, that is created by taking one character from the front and then the end iterativ...

21 days ago

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Check if integer is a prime number
Check if integer i is a prime number. Returns logical true '1' if it is.

21 days ago

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Find the repeating decimal pattern!
Write a function that takes one double input value and returns only the repeating decimal, if any, as a string. Only decimals f...

22 days ago

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Circle and Quadratic
Imagine the quadratic curve with equation y=y(x)=ax^2+bx+c On the concave side of this curve there is a circle of radius...

22 days ago

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Remove TeX from string
Matlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX...

22 days ago

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Pixel density
<https://en.wikipedia.org/wiki/Pixel_density Pixel density> tells us how many pixels we can find within a unit of length. And a...

22 days ago

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Create the Ulam spiral
Have you ever seen this wonderful spiral ? The Ulam Spiral is arranging prime numbers in a clockwise spiral starting in 0. Give...

22 days ago

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Wavy gravity
In a parallel universe the gravity works very strangely. Indeed, gravity is equal to: g = sin( (pi/2)*t/60 ) [m/s^2], where t i...

23 days ago

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Who am I ?
Who am I ? Write any function that reveals itself under these constraints. Hint: I am combinatorial code, and I don't like stat...

23 days ago

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Beat the RNG - EASY

23 days ago

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LIFO Validation
Write a function to check whether a LIFO (Last In First Out) restriction on inventory is violated. We have two input vectors ...

23 days ago

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Create nXn Fourier matrix

23 days ago

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Higher! Lower! Correct!
In he game of "Guess the number", the game leader mentally pictures a number between a lower and higher number, and then asks th...

23 days ago

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[Thermodynamics] Polynomial fitting of heat capacity data

23 days ago

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Check if an FAA N-Number is Valid
An N-number is a unique registration assigned by the Federal Aviation Administration (FAA) to every civil aircraft operating in ...

23 days ago

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Choose group with people
How many ways can you choose n groups of n people from n^2 people, assuming the groups are distinct? The number of people is gi...

25 days ago