A résolu


Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

environ 4 ans il y a

A résolu


Matrix of Multiplication Facts
This is James's daughter again, sneaking into his Cody account. Thanks to your help in my math class last year, I did great! B...

environ 4 ans il y a

A résolu


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

environ 4 ans il y a

A résolu


Go to the head of the class!
You're given a matrix and a single number. If that number is in the matrix, reorder the matrix so that number is in the first r...

environ 4 ans il y a

A résolu


Must be in the front row...
You are given a matrix followed by a single number. Your object is to write a script that will shift the matrix around so that ...

environ 4 ans il y a

A résolu


Magnet and Iron
(Inspired from <http://www.mathworks.com/matlabcentral/cody/problems/112 Problem 112: Remove the air bubbles>) Iron (atomic n...

environ 4 ans il y a

Réponse apportée
Why do I get a wrong plot?
I contacted the author of the paper. It turned out that the equation for the diffraction OTF has a typo. The correct one is ...

environ 4 ans il y a | 0

| A accepté

A résolu


Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

environ 4 ans il y a

A résolu


Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

environ 4 ans il y a

A résolu


Replace Nonzero Numbers with 1
Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

environ 4 ans il y a

A résolu


Matrix multiplication across rows
Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

environ 4 ans il y a

A résolu


A matrix of extroverts
Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

environ 4 ans il y a

A résolu


Convert matrix to 3D array of triangular matrices
Given a 2D numeric array x in which each column represents the vectorized form of an upper triangular matrix, return a 3D array ...

environ 4 ans il y a

Question


Why is a regular expression used in this code?
I found a code to dump zero rows/columns in the southeast part of a given matrix: function b = ZeroDumping(a) regexp '' '(?...

environ 4 ans il y a | 1 réponse | 0

1

réponse

A résolu


Too Many Zeros, Dump Them!
Sometimes when I create a matrix, I use this syntax: a = zeros(1000,1000); But when the function ends, I find that I don'...

environ 4 ans il y a

A résolu


Enlarge array
Given an m-by-n numeric array (A) and a 1-by-2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m...

environ 4 ans il y a

A résolu


Remove entire row and column in the matrix containing the input values
Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...

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A résolu


frame of the matrix
Given the matrix M, return M without the external frame.

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A résolu


subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

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Discussion


How to use a optimization toolbox in MATLAB Cody problem?
I'm trying to solve one problem in Cody, but a function 'fmincon' is not recognized by the online compiler. Is there any way to ...

environ 4 ans il y a | 0

Question


How to use a optimization toolbox in MATLAB Cody problem?
I'm trying to solve one problem in Cody, but a function 'fmincon' is not recognized by the online compiler. Is there any way to ...

environ 4 ans il y a | 1 réponse | 0

1

réponse

A résolu


Given a matrix, swap the 2nd & 3rd columns
If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4]; then the result is ans = 1 3 2 4 1 3 2...

environ 4 ans il y a

A résolu


matrix zigzag
Unfold a 2-D matrix to a 1-D array in zig-zag order, e.g., for matrix [ 1 2 3 ; 4 5 6 ; 7 8 9 ] the resulting 1-...

environ 4 ans il y a

Question


Why do I get a wrong plot?
I'd like to make a plot of a quantity called "PSF" but I cannot get a correct result for some reason. I will first explain the t...

environ 4 ans il y a | 1 réponse | 0

1

réponse

A résolu


Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

environ 4 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:...

environ 4 ans il y a

Question


How to fix the GPU warning?
Hello, I'm trying to use GPU libraries (especially, gpuArray) on an HPC cluster but I constatnly get an error below: --- Wa...

environ 4 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
imresize error. "Expected input method to be a string or a character vector. Allowed values are: 'cubic' or 'bicubic'."
I could solve this problem by retrieving the array from the GPU by gather function. grayImage = gather(gpu_grayImage); grayI...

environ 4 ans il y a | 0

| A accepté

Question


imresize error. "Expected input method to be a string or a character vector. Allowed values are: 'cubic' or 'bicubic'."
I get the error message: Expected input method to be a string or a character vector. Allowed values are: 'cubic' or 'bicubic'...

environ 4 ans il y a | 3 réponses | 0

3

réponses

Question


How to make the negative sign in the legend easier to see?
I generated the following legend in my plot but the negative sign ('-') is hard to see. I tried several different fonts but it d...

plus de 4 ans il y a | 2 réponses | 0

2

réponses