Solved

Split Even Number Into Two Primes
Given an even whole number n (> 2), return a 2-element vector of primes, p, such that p(1) + p(2) = n. Fun note: technically it...

meer dan een jaar ago

Submitted

Zoom Keys
Pan and zoom with simple keystrokes.

Solved

Extract the Acrostic Message
An acrostic cipher is a way of embedding one message within another by taking the first (or last) word of each line. Given a str...

meer dan een jaar ago

Solved

Boustrophedon
Given a vector v and a positive integer n, return an m-by-n matrix containing the elements of v row-wise, alternating left-to-ri...

meer dan een jaar ago

Solved

Generate Tribonacci Sequence
The "Tribonacci" sequence is an extension of the idea of the Fibonacci sequence: That is, each new term is the sum of the thr...

meer dan een jaar ago

Solved

Where the Four Corners Am I?
The "Four Corners" region of the US is where Colorado, Utah, Arizona, and New Mexico all meet - the only place where four states...

meer dan een jaar ago

Solved

Generate Pascal's Triangle Matrix
Pascal's triangle is an arrangement of numbers where each value is the sum of the values adjacent to it in the previous row: ...

meer dan een jaar ago

Solved

Jack O'Lantern
If visualized correctly, the data contained in the matrix A will look like a jack-o'-lantern. Create a function that will visu...

meer dan een jaar ago

Solved

Plotting Practice
Plot cos(x) vs x as shown in the figure below. Include the appropriate title, x-label, and y-label. Note, it is case sensitive. ...

meer dan een jaar ago

Solved

Make a Plot with Functions
Make a plot and test

meer dan een jaar ago

Solved

The matrix grades contains raw grades for 7 students who took your course. Each row represents a different student. The first 7 ...

meer dan een jaar ago

Solved

Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-ri...

meer dan een jaar ago

Solved

Find the minimum of the column-maximums of a matrix
Given a matrix A, find the maximum value of each column, then return the smallest of those maximum values (ie return the minimum...

meer dan een jaar ago

Solved

Find Closest Constant
Given a number x, return the value that is closest to x from this list of constants: 0, 1, , e, , (also known as ). For exampl...

meer dan een jaar ago

Published

Contests, Contests!
Here in New England, autumn is in full swing. The maple leaves are shifting into their best yellows and reds. On MATLAB...

meer dan een jaar ago

Solved

Create an arrow matrix
An arrow matrix is a square matrix that contains ones on the diagonal, the last column, and last row. ...

meer dan een jaar ago

Published

New Features: How Do You Find the Good Stuff?
If I give you something but you never get the news, did I really give it to you? This happens all the time with MATLAB...

meer dan een jaar ago

Solved

Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

meer dan een jaar ago

Published

Listen in as Yuki Kamatani interviews a man who built his own MRI! Hi, I'm Yuki Kamatani, an application engineer in our...

bijna 2 jaar ago

Solved

Given a matrix, swap the 2nd & 3rd columns
If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4]; then the result is ans = 1 3 2 4 1 3 2...

bijna 2 jaar ago

Published

Publishing to WordPress
This blog post began its life as a Live Script in MATLAB. I could have started typing into WordPress, but then I wouldn't...

ongeveer 2 jaar ago

Solved

Find the complement of a number in binary
Input x is a decimal number and output y is the complement of binary representation of x. For example, x = 10 has the binary ...

ongeveer 2 jaar ago

Published

Happy Valentines Day!
I found this lovely algorithmic heart in the comments of an old Walking Randomly post. Research software superstar Mike...

ongeveer 2 jaar ago

Published

Community Q&A – Yair Altman
Yair Altman is a top participant on MATLAB Central, especially within File Exchange.  He is best known for being the...

ongeveer 2 jaar ago

Published

Dr. Maeda Wins With MATLAB!
Some people say it's hard to make predictions. Not true. But making accurate predictions... okay, that's hard. Even so,...

meer dan 2 jaar ago

Published

Tips ‘n’ Tricks with Chris Armstrong of BAE Systems
As part of my business travel over the years, I've been fortunate to visit the UK several times and meet folks from BAE...

meer dan 2 jaar ago

Solved

Replace Nonzero Numbers with 1
Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

meer dan 2 jaar ago

Solved

frame of the matrix
Given the matrix M, return M without the external frame.

meer dan 2 jaar ago

Solved

subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

meer dan 2 jaar ago

Published

Mini Hack Contest Analysis
Today we have a guest post from Dave Bulkin. Dave is a developer on the MATLAB Graphics and Charting Team. Dave used to be...

meer dan 2 jaar ago