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Sidafa


Last seen: más de 4 años hace |  Con actividad desde 2013

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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...

más de 7 años hace | 0

Pregunta


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...

más de 7 años hace | 1 respuesta | 0

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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...

casi 8 años hace | 1 respuesta | 0

1

respuesta

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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...

alrededor de 8 años hace | 1 respuesta | 0

1

respuesta

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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 ...

más de 9 años hace | 1 respuesta | 0

1

respuesta

Pregunta


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 ...

más de 9 años hace | 1 respuesta | 0

1

respuesta

Pregunta


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); ...

más de 9 años hace | 1 respuesta | 1

1

respuesta

Pregunta


create an L-shaped sub-domain
On a [-1,1]*[-1,1] domain, how can I flag (boolean) an L-shaped domain?

casi 10 años hace | 0 respuestas | 0

0

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Pregunta


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...

casi 10 años hace | 3 respuestas | 0

3

respuestas

Resuelto


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...

alrededor de 10 años hace

Resuelto


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...

alrededor de 10 años hace

Resuelto


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...

alrededor de 10 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...

alrededor de 10 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...

alrededor de 11 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 ...

alrededor de 11 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...

alrededor de 11 años hace

Resuelto


Is my wife right?
Regardless of input, output the string 'yes'.

alrededor de 11 años hace

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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 ...

alrededor de 11 años hace

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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...

alrededor de 11 años hace

Resuelto


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

alrededor de 11 años hace

Resuelto


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

alrededor de 11 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 ...

alrededor de 11 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...

alrededor de 11 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:...

alrededor de 11 años hace