解決済み

Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

14年以上前

解決済み

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

14年以上前

解決済み

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...

14年以上前

解決済み

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...

14年以上前

解決済み

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...

14年以上前

解決済み

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...

14年以上前

解決済み

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...

14年以上前

解決済み

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 ...

14年以上前

解決済み

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...

14年以上前

解決済み

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...

14年以上前

解決済み

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

14年以上前

解決済み

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 ...

14年以上前

解決済み

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

14年以上前

解決済み

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 ...

14年以上前

解決済み

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...

14年以上前

解決済み

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:...

14年以上前

回答済み
A better way to loop
|If| is a control flow statement not a loop. Don't indent the if conditions if they are not nested. if b~=n & b<n & b==1...

14年以上前 | 0

回答済み
How to disable fmincon from output notices?
Check the display option: http://www.mathworks.co.uk/help/toolbox/optim/ug/fmincon.html#f854721

14年以上前 | 4

| 採用済み

回答済み
find array/matrix max value and position
Look at the second output argument of the |max| function. [m,idx] = max(p)

14年以上前 | 0

回答済み
Creating and naming arrays on the fly
Use structures: c = {'name1','name2','name3'}; for n = 1:numel(c) s.(c{n}) = fetch... end Or read <http://m...

14年以上前 | 0

回答済み
Sort cell strings according to specific subsets of those cell strings
% Split using |'.'| as the delimiter splt = regexpi(filename,'\.','split'); % Sort according to the 8th and 10th col...

14年以上前 | 2

| 採用済み

回答済み
repeat element in an array
combinator(3,3,'p','r') On the fex: http://www.mathworks.com/matlabcentral/fileexchange/24325-combinator-combinations-and-per...

14年以上前 | 0

回答済み
Create a monthly date vector of serial numbers
You are "almost" right, but what you're saying to matlab with, datenum({'01-Jan-1900':'01-Nov-2011'}) is: _"Take the strin...

14年以上前 | 8

| 採用済み

回答済み
String Manipulation Syntax
fdata(:,1) = cellfun(@(x) x(4:8),fdata(:,1),'un',0)

14年以上前 | 0

| 採用済み

回答済み
how solve 1 unknown varible function?
fsolve(@(x) (2*x+4)/(x+2)-5,0) And the equation you propose has no solution because |x+2| simplifies away

14年以上前 | 0

| 採用済み

回答済み
Generating a string of random standard normal variables that are correlated
Given a correlation matrix |C = A*A'|, then |A = P*sqrt(D)|, where: [P,D] = eig(C); % spectral decomposition To get the...

14年以上前 | 1

回答済み
Avoiding cross product for accessing the matrix
pos = sub2ind(size(A), r,c) A(pos)

14年以上前 | 1

| 採用済み

回答済み
how to use command "dir"
You can look for a specific extension: dir 'C:\Users\Oleg\Desktop\*.jpg'

14年以上前 | 0

回答済み
count rows in matrix ?
size(A,1) The following documentation provides more information on 'size' function: https://www.mathworks.com/help/matlab/ref/...

14年以上前 | 46

| 採用済み

回答済み
Storage of a loop from negative number
Loop version: z = zeros(1,301^2); n = 0; for x =-1.5:0.01:1.5 for y =-1.5:0.01:1.5 n = n+1; ...

14年以上前 | 0