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8 Questions
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Feeds
the initial point is local minima for fmincon.
It looks as though fmincon has converged from the output. The objective function, as pointed out from the previous answer, may b...
plus de 8 ans il y a | 0
Question
limit the number of function evaluation per iteration in FSOLVE
Hello, I'm hoping to set a bound to the number of function evaluation per stage in fsolve. What I mean is this: with MaxFu...
plus de 8 ans il y a | 1 réponse | 0
1
réponseQuestion
ODE45: only save the solution at final time
I would like to only save the solution at the final time. Rather than the output argument "y" being an array of size (N, M), I o...
plus de 8 ans il y a | 1 réponse | 0
1
réponseQuestion
Multiply each row of a matrix by a matrix
Say I have the following matrix B = [1 2 3;4 5 6;7 8 9;10 11 12] and another matrix A = [a b c;d e f;g h i] Ho...
presque 9 ans il y a | 1 réponse | 0
1
réponseQuestion
return to first call in recursive call
Hello, Is there a way to return to the head of the stack of recursive function calls? or exit the recursive calls? I have ...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Complex, negative real sym
I was wondering if there was a way to create a sym object z, and assume negative real part. I guess I can create define ...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Subplot with varying number of plots
Hello, Not sure if this possible. What I want to do is the following: fig0 = figure; subplot(1,2,1); plot(x,y1); ...
plus de 10 ans il y a | 1 réponse | 1
1
réponseQuestion
create an L-shaped sub-domain
On a [-1,1]*[-1,1] domain, how can I flag (boolean) an L-shaped domain?
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
circshift columns of array by different shift size
I'm trying to do the following with arrayfun and circshift s_dfp = magic(4); s_hh1p = circshift(s_dfp(:,1),[1 -1]); s...
presque 11 ans il y a | 3 réponses | 0
3
réponsesA résolu
Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
environ 11 ans il y a
A résolu
Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...
environ 11 ans il y a
A résolu
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
environ 11 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...
environ 11 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...
environ 12 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 ...
environ 12 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...
environ 12 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 ...
environ 12 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...
environ 12 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.
environ 12 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 ...
environ 12 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...
environ 12 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 12 ans il y a
