Resuelto

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 14 años hace

Resuelto

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 14 años hace

Resuelto

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...

más de 14 años hace

Resuelto

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 ...

más de 14 años hace

Resuelto

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 ...

más de 14 años hace

Resuelto

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...

más de 14 años hace

Resuelto

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

más de 14 años hace

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 14 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 14 años hace

Resuelto

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

más de 14 años hace

Respondida
Angle Comparison
If I understand this setup correctly, then the following is true. Take a line segment (I take this to be what you mean by side)...

más de 14 años hace | 0

Respondida
Cumsum Function Reproduction
[DELETED]

más de 14 años hace | 0

Respondida
strings in a loop
Sven, In most Matlab functions that display text, you can pass a cell array of strings to accomplish new lines. The example ...

más de 14 años hace | 0

| aceptada

Respondida
conversion
Baba, This will do what you described. structVar(1).name = 'First'; structVar(2).name = 'Second'; makeVarFun = @(s...

más de 14 años hace | 0

Respondida
Non-linear Optimization for adjusting one trajectory to another (one matrix transformed to match other).
Try an anonymous function handle instead of an inline function, like this. difference_fun = @(x) norm( T1 - x(4)*T2 * ... ...

más de 14 años hace | 0

| aceptada

Respondida
Switch Case where case is a word_anynumber
If all of your cases are similar to what you describe, then you can use strtok like this. a = 'word_4'; b = 'word_27'; ...

más de 14 años hace | 0

Respondida
FASTA AND BLAST
The following commands and output says there are not such functions. >> help fasta fasta not found. Use the Help br...

más de 14 años hace | 0

Respondida
Reflection of a surface across an axis
Braden, This example should help you see what to do. hand = surf(peaks); set(hand, 'XData', -1*get(hand,'XData'));

más de 14 años hace | 0

| aceptada

Respondida
Gaussian Propability Area at different alpha
I believe this will accomplish your purpose. Let me know. LoS = .99; % Your level of significance lower = (1 - LoS) / ...

más de 14 años hace | 0

Respondida
Sphere into equal parts
Abhinendra, I believe what you are looking for can be accomplished with this item ( <http://www.mathworks.com/matlabcentral/fil...

más de 14 años hace | 0

Pregunta

speed of rand vs randi
I sometimes use "if rand < 0.5" or "if randi(2) == 1" to arbitrarily select one branch or another with equal probability. I ran...

más de 14 años hace | 1 respuesta | 0

1

respuesta

Respondida
multiplying adjacent values in matrix
See if this works for you. A = primes(100); B = A(1:end-1) .* A(2:end);

más de 14 años hace | 0

| aceptada

Respondida
Is there an elegant way to create dynamic array in MATLAB?
liangjian, You can preallocate based on the number of iterations. Try something like this. numIter = 100; array = ...

más de 14 años hace | 1

Respondida
randperm
If you want to randomly permute the rows, do something like the following. n = 5; A = reshape(1:2*n, n, 2) B = A(rand...

más de 14 años hace | 0

Respondida
Need help for cross checking of eigen Vector
This gives a possible set of unit eigenvectors. [V,D] = eig(A) If there is an eigenspace of more than one dimension, the vec...

más de 14 años hace | 1

| aceptada

Respondida
how to initialize an M×N array whose size is unknown in for-loop
A. Hill, You can probably get a good estimate of the number of elements by examining the file sizes. Suppose the files are i...

más de 14 años hace | 0

Respondida
Minimize function with respect to multiple variables
You can use the function fminsearch for this, which requires an initial guess. Here is how it might look for you. x = 1; ...

más de 14 años hace | 5

| aceptada

Respondida
How to put stacked plots in the same graph
Alan, To plot the data all in the same plot, do something like the following. x1 = 0:.01:1; y1 = x1.^2; x2 = .5:.1...

más de 14 años hace | 1

| aceptada

Respondida
Warning: Imaginary part is currently ignored.
This warning means that one of the inputs to atan2 is imaginary. The two places you use atan2 are extracted below. q2=atan...

más de 14 años hace | 0

| aceptada

Respondida
Re-arranging an exponential function of 2 parts
Simon, There is no logarithm rule that allows you to solve for x explicitly. However, from differentiating we can see that i...

más de 14 años hace | 0