Solved

Permute the unique values of a vector without sorting
Given a vector A, return the matrix B, wherein each row contains a permutation of the unique values in original vector while ret...

18 days ago

Solved

Binary code for an analog signal
Digitization of a signal consists of 3 stages: sampling, quantization and encoding. Sampling convert the analogue signal into p...

18 days ago

Solved

Aufbau principle
Given the order e=[1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p], find a vector x with these condi...

18 days ago

Solved

That's not my hat!
There exists a highly secretive hat consortium. Members possess identical hats. The members are invited to a meeting. All of the...

18 days ago

Solved

chess position
given the position of a chess piece in algebric notation, convert it into 8 by 8 matrix format. For example, * 'Qd5' >> [3,4]...

18 days ago

Solved

Probabilities - Balls and urns - 02
The urn contains B blue balls and R red balls. Each trial consists of drawing one random ball from the urn and observing its col...

19 days ago

Solved

Grazing-01
A cow is tied to an outside corner of a rectangular barn of size (a,b) with a rope of length l. What is the maximum area the cow...

19 days ago

Solved

Ugly numbers - 03
For this case, a number is defined ugly if it has prime factors consisting of only elements of x. Find the nth ugly number. ...

19 days ago

Solved

Poker Series 08: IsPair
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

19 days ago

Solved

Cody meets Xiangqi: foresee the unseen (Part 1)
This is the first part of the Xiangqi series. The second part in this series is: <http://www.mathworks.com/matlabcentral/cody/pr...

20 days ago

Solved

Covering a four-pointed star polygon by circles
Given the area, A, of a star polygon formed by the rectangle, with dimensions L×2L, and four triangles, with height h from their...

20 days ago

Solved

How tall will my cactus be?
My Barbed Wire Cactus is a desert cactus that relies on just the right amount of rainfall to stay healthy. Given a 1×12 vector...

21 days ago

Solved

Covering a four-pointed star polygon by rectangles
Given the area, A, of a star polygon formed by the rectangle, with dimensions L×2L, and four triangles, with height h from their...

22 days ago

Solved

Return the Square of a Number
Write a function that takes a single numeric input x and returns its square. That is, given x, your function should output x^2....

25 days ago

Solved

Express base-10 integers in lazy binary
The binary (or base-2) representations of a number n can be constructed as follows: Step 1: If n = 0, then the binary represent...

25 days ago

Solved

aaa
aaa

27 days ago

Solved

Comparison of floating-point numbers (singles)
Floating-point numbers cannot generally be represented exactly, so it is usually inappropriate to test for 'equality' between tw...

29 days ago

Solved

Comparison of floating-point numbers (doubles)
<https://au.mathworks.com/help/matlab/matlab_prog/floating-point-numbers.html Floating-point numbers> cannot generally be repres...

29 days ago

Solved

Make a KITT-scanner on the command line
Did you know that you can actually remove characters from the command-line window? Just send a 'backspace' character to the outp...

29 days ago

Solved

Singleton Expansion without BSXFUN
BSXFUN is very useful and fast. In R2015b we can implement singleton expansion without BSXFUN, see the test suite for details...

29 days ago

Solved

Hungry Snake
Who hasn't played <http://en.wikipedia.org/wiki/Snake_%28video_game%29 the Snake game> when they were little? It's quite hard ...

29 days ago

Solved

USC Fall 2012 ACM : Find Largest Water Concentration
This Challenge is to solve Question B, Water?, of the <http://contest.usc.edu/index.php/Fall12/Home USC ACM Fall 2012 Contest>. ...

29 days ago

Solved

DNA Pattern Match: Performance Metric - Speed
The Challenge is to Rapidly find matches of DNA sequences, Length=6, in a 1,800,000 long DNA file. At <http://imacst.com/issu...

30 days ago

Solved

GJam: 2013 China Event: Name Sorting
This Challenge is derived from <http://code.google.com/codejam/contest/2933486/dashboard#s=p2 GJam 2013 China Moist>. The proble...

30 days ago

Solved

You are given a matrix A of size m x n representing a Sudoku puzzle. The matrix contains digits from 1 to 9, where 0 represents an empty cell. Your task is to solve the Sudoku puzzle by filling in the empty cells with the correct digits.
The provided code implements a solution for solving Sudoku puzzles using a recursive backtracking algorithm. Sudoku is a log...

30 days ago

Solved

GJam 2015 Rd1B: Counter Culture
This Challenge is derived from <https://code.google.com/codejam/contest/8224486/dashboard#s=p0 GJam 2015 Rd 1B: Counter Culture>...

1 month ago

Solved

Signal Processing Basic - 1. Stretch a signal
Input vector V is a discrete time signal assuming the first sample is sampled at t=0. This signal has to be stretched in time. ...

1 month ago

Solved

Slicing the area of a regular polygon
Given the area, A, of a regular polygon with n sides, each of length s, consider its decomposition in congruent isosceles triang...

1 month ago

Solved

Calculate Reynolds Number
Write a MATLAB function that calculates the Reynolds number for flow over a flat plate: ρ = fluid density (kg/m³) V = veloc...

1 month ago

Solved

Compute Airspeed from Mach Number
Write a MATLAB function that converts a Mach number to airspeed given the speed of sound aa in m/s: V=M⋅a V = airspeed (m/s) M...

1 month ago