Risolto

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...

quasi 12 anni fa

Risolto

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...

quasi 12 anni fa

Risolto

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...

quasi 12 anni fa

Risolto

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...

quasi 12 anni fa

Risolto

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 ...

quasi 12 anni fa

Risolto

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...

quasi 12 anni fa

Risolto

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

quasi 12 anni fa

Risolto

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...

quasi 12 anni fa

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

quasi 12 anni fa

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

quasi 12 anni fa

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

quasi 12 anni fa

Risolto

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

quasi 12 anni fa

Risolto

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

quasi 12 anni fa

Risposto
MATLAB Editor Code Analyzer
Terminating the line with the comment %#ok suppresses the warning.

oltre 12 anni fa | 0

Domanda

MATLAB Editor Code Analyzer
For the following code x=1; save('x','x') x=2; the MATLAB Editor Code Analyzer warns "The value assigned to var...

oltre 12 anni fa | 4 risposte | 0

Risposto
Finding the indices of the elements of one array in another
Thinking again, I realize that ismember is all I need [~,idx]=ismember(B,A) will do it.

oltre 12 anni fa | 6

Risposto
Finding the indices of the elements of one array in another
Thanks for the three solutions. Here is a function to test all three. "method_1" wins as the most elegant and fastest, but the o...

oltre 12 anni fa | 6

Domanda

Finding the indices of the elements of one array in another
Given two vectors A and B, find the index, idx into A of the element of B so that A(idx)=B. Now I know there must be many ways...

oltre 12 anni fa | 7 risposte | 5

Domanda

Picking an FFT length
How could I find the most efficient FFT size greater than N? I know that with fftw "sizes that are products of small factors are...

quasi 13 anni fa | 1 risposta | 0