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Twin Primes
Twin primes are pairs of primes that are immediately next to each other (difference of two). The lesser of twin primes are 3, 5,...

9 days ago

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Find the Pattern 10

9 days ago

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Decimation - Optimized for speed
This problem is similar to http://www.mathworks.com/matlabcentral/cody/problems/1092-decimation, only this time the score will b...

9 days ago

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Flexible Anonymous Function
Given a function handle, return a handle to a function that would accept an arbitrary number of inputs, applies the function to ...

9 days ago

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function on a moving window
Create a function that applies an operation (such as @sum, @mean, @std, @norm etc) to a moving window of the data. First exampl...

9 days ago

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Create a function handle that reverses the input arguments of another function handle
Given a function that takes two input arguments and returns one output, create another function handle that performs the same op...

9 days ago

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Apply Function to Each Field of a Structure Array: Part 2
The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

9 days ago

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Extract Built In Functions and Toolbox Functions from String or Function Handle
Find the Built-In functions and Toolbox functions in either a string or a function handle. Generate a string of alphabetized ...

9 days ago

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Function Sniffer
Given a string, find out which built-in functions are present, output a simple string, that has sorted and unique list of the...

9 days ago

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Data decompression
A chunk of data is to be 'decompressed'. Input: * compressed: a row vector of uint8 values. This is the compressed data. ...

10 days ago

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Make an anonymous function that has variable output
Make a anonymous function that has variable output. f = @(x)... the following equation→equation(s) as followed has(ve) ...

10 days ago

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First use of arrayfun() and anonymous function @(x)
Create an anonymous function using @(x) for a parabola equation for the given coefficients stored in s with s(1)x2 + s(2)x + s(...

10 days ago

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the average value of the elements
Calculate the average value of the elements in the array

10 days ago

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calculate the length of matrix
input 1 array, calculate the length

10 days ago

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Find the max element of the array
Find the max element of the array

10 days ago

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Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

10 days ago

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The Five Infection (Boss Level)
Given a 3x3 matrix A, replace: every value that is equal to five every value that is directly adjacent to a five with zero in...

10 days ago

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Fives Begone
Given any sentence as an input value 'sentence', turn all fives into the letter X and return the improved sentence. Also, turn a...

11 days ago

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Broken Clock
Create a function that outputs t, an inputted matrix time x, in hours and minutes (hr:min) unless the time contains a five. In t...

11 days ago

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No Fives Permitted
Create a function that gives users an custom error message if the matrix A contains a five. The error message should say "No Fiv...

11 days ago

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A Fiveless Factorial
Given a positive integer x, compute its factorial y, but exclude any muliplication by five if applicable.

11 days ago

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Don't Sum a Five
Create a function that sums the first and last element of a muti-element vector unless the value of one of the elements is 5. Do...

11 days ago

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Don't Include a Five (Part Two)
Given a vector A with at least one non-five, return vector B, with all fives excluded (not replaced by zeros).

11 days ago

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Don't Include a Five
Given a vector A, return vector B with all 5s replaced with 0s.

11 days ago

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High Five!
Write a function that takes a number x and returns y = 'High Five' if x is not equal to five. Return y = 'Denied' if the number ...

11 days ago

Solved

A Five Introduction
Write a function that takes a number x as an input and returns the same value as y, unless x = 5, in which case the function sho...

11 days ago

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Count letters occurence in text, specific to words with a given length.
Build a function with two input arguments: a string and a word length (number of letters), that outputs a vector of counts of th...

11 days ago

Solved

Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 = 9 + 16 ...

11 days ago

Solved

Chain multiplication - 02
Following up on the problem in 55295, you found the number of multiplications needed to multiply two matrices. Now, you are giv...

11 days ago

Solved

Apply Function to Each Field of a Structure Array: Part 1
The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

11 days ago