# Josh

needs a job... File Exchange: https://www.mathworks.com/matlabcentral/fileexchange/?q=authorid%3A2520198

**Programming Languages:**

Python, Javascript, MATLAB, HTML, CSS

**Spoken Languages:**

English, Spanish

**Professional Interests:**

Mathematics, Musical Instrument Digital Interface (MIDI), Image Processing and Computer Vision

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**Content Feed**

Solved

Clean the List of Names

Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

9 hours ago

Solved

Increment a number, given its digits

Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

10 hours ago

Solved

Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

10 hours ago

Solved

surrounded matrix

With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

10 hours ago

Solved

Determine Whether an array is empty

Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

10 hours ago

Solved

Convert a numerical matrix into a cell array of strings

Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

10 hours ago

Solved

Symmetry of vector

Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] is s...

10 hours ago

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

1 month ago

Solved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

1 month ago

Solved

Find the longest sequence of 1's in a binary sequence.

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

1 month ago

Solved

nxn matrix with elements from 1:n^2

really simple once you see what the matrix is supposed to look like. i appreciate what seems to be a clever approach to solving ...

2 months ago

Solved

create a square matrix

create a [n*n] matrix. example: mat(4)= [ 1 4 9 16 4 4 9 16 9 9 ...

3 months ago

Problem

nxn matrix with elements from 1:n^2

really simple once you see what the matrix is supposed to look like. i appreciate what seems to be a clever approach to solving ...

3 months ago | 0 | 16 solvers

Solved

Bullseye Matrix with Zeros

Inspired by Problem 18, create a bullseye matrix with the addition of padding equal to 0 between concentric rings. Matrices are ...

3 months ago

Problem

Bullseye Matrix with Zeros

Inspired by Problem 18, create a bullseye matrix with the addition of padding equal to 0 between concentric rings. Matrices are ...

3 months ago | 0 | 8 solvers

Solved

Bullseye Matrix

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

3 months ago

how do I download a license file?

Not sure if you're seeking to download the license file from MathWorks or access it on your computer or something else License ...

4 months ago | 0

| accepted

CNN and Image Sizes

I might need clarification regarding the nature of your images as usually images are represented as a: n x m matrix where eleme...

4 months ago | 0

Solved

Generate a NaN...on purpose

The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...

5 months ago

Solved

Create a random logical vector of N elements of which M are true.

Your task for tomorrow is to create a random binary (logical) vector of N elements of which M are true. For example: ran...

5 months ago

Solved

Create a random vector of integers with given sum

Your task today is to write a function that returns a vector of integer numbers, between, and including, 1 and m, of which the s...

5 months ago

Solved

Generate a random matrix A of (1,-1)

Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

5 months ago

Solved

Sum of first n terms of a harmonic progression

Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

5 months ago

Solved

Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)

Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

5 months ago

Solved

Alternating sum

Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

5 months ago

Solved

Find common elements in matrix rows

Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

5 months ago

Solved

Return a list sorted by number of occurrences

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

5 months ago

Solved

Getting the indices from a matrix

Inspired by Problem 645. Getting the indices from a matrix. Given a matrix A (or a vector), return the indices (always in row...

5 months ago

Solved

First non-zero element in each column

For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero i...

5 months ago