Resuelto


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...

más de 13 años hace

Resuelto


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...

más de 13 años hace

Resuelto


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...

más de 13 años hace

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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...

más de 13 años hace

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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...

más de 13 años hace

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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 ...

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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...

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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 ...

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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...

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

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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.

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Resuelto


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 ...

más de 13 años hace

Resuelto


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...

más de 13 años hace

Resuelto


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:...

más de 13 años hace

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

casi 14 años hace | 0

Pregunta


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...

casi 14 años hace | 4 respuestas | 0

4

respuestas

Respondida
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.

más de 14 años hace | 6

Respondida
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...

más de 14 años hace | 6

Pregunta


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...

más de 14 años hace | 7 respuestas | 6

7

respuestas

Pregunta


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...

más de 14 años hace | 1 respuesta | 0

1

respuesta