A résolu


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...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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 ...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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 ...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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

plus de 13 ans il y a

A résolu


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

plus de 13 ans il y a

A résolu


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 ...

plus de 13 ans il y a

A résolu


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...

plus de 13 ans il y a

A résolu


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:...

plus de 13 ans il y a

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

presque 14 ans il y a | 0

Question


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...

presque 14 ans il y a | 4 réponses | 0

4

réponses

Réponse apportée
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.

environ 14 ans il y a | 6

Réponse apportée
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...

environ 14 ans il y a | 6

Question


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...

environ 14 ans il y a | 7 réponses | 6

7

réponses

Question


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...

plus de 14 ans il y a | 1 réponse | 0

1

réponse