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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...

etwa 13 Jahre vor

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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...

etwa 13 Jahre vor

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

etwa 13 Jahre vor | 0

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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 ...

etwa 13 Jahre vor | 0

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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 13 Jahre vor

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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 13 Jahre vor | 0

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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 13 Jahre vor | 1

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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 13 Jahre vor | 0

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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 13 Jahre vor | 2

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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 13 Jahre vor | 0

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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 13 Jahre vor

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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...

etwa 14 Jahre vor | 0

Beantwortet
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...

etwa 14 Jahre vor | 4

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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".

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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

etwa 14 Jahre vor

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

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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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 ...

etwa 14 Jahre vor

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

etwa 14 Jahre vor

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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...

etwa 14 Jahre vor

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

etwa 14 Jahre vor