Solved


Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

mehr als 6 Jahre ago

Solved


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

mehr als 6 Jahre ago

Answered
how to stop the running program
Ctrl + C It'll work in most cases. You can change the key mapping in your MATLAB preferences.

mehr als 6 Jahre ago | 0

| accepted

Answered
Is my calculation too complex for Matlab?
As Bjorn mentioned, since they're periodic they may have many solutions. However if I remember the solve command right, I think ...

mehr als 6 Jahre ago | 0

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

mehr als 6 Jahre ago

Answered
colorbar position on imageplot with multiple figures
Colorbars are associated with a particular axis. If you do not specify which axis, then it will be added to the last one you use...

mehr als 6 Jahre ago | 0

Answered
imshow update in realtime, colorbar causing it to slow down
You can make visualizations inside of loops more efficient by using handle graphics to update the underlying data rather than re...

mehr als 6 Jahre ago | 0

| accepted

Answered
is there a version of Principle Component Analysis for images?
I don't know much PCA myself, but I know we have some built-in tools in Statistics and Wavelet toolboxes that may be of use: ...

mehr als 6 Jahre ago | 0

Answered
What's the difference between imagesc and imshow?
|imshow| has a number of default settings intended for displaying images, such as turning off the axes and locking the aspect ra...

mehr als 6 Jahre ago | 1

| accepted

Answered
Making a splash Screen for my Gui program
Search for 'splash screen' on the MATLAB File Exchange, there are a number of entries that can do this for you. <http://www.m...

mehr als 6 Jahre ago | 0

Solved


Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

mehr als 6 Jahre ago

Answered
Test harnesses and reference models
First I would double check that you are using virtual vs non-virtual buses where appropriate. There's a good blog post here t...

mehr als 7 Jahre ago | 0

Answered
High CPU usage when matlab is idle on Linux
Have you rebooted your Linux machine since July 1? If not then that may be the problem. There was a bug with Linux that caused a...

mehr als 7 Jahre ago | 4

| accepted

Solved


The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

mehr als 7 Jahre ago

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

mehr als 7 Jahre ago

Solved


Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

mehr als 7 Jahre ago

Solved


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

mehr als 7 Jahre 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...

mehr als 7 Jahre ago

Solved


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

mehr als 7 Jahre ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

mehr als 7 Jahre ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

mehr als 7 Jahre ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

mehr als 7 Jahre ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

mehr als 7 Jahre ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

mehr als 7 Jahre ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

mehr als 7 Jahre ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

mehr als 7 Jahre ago

Solved


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 ...

mehr als 7 Jahre ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

mehr als 7 Jahre ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

mehr als 7 Jahre ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

mehr als 7 Jahre ago

Load more