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Sidafa


Last seen: environ 4 ans il y a |  Actif depuis 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...

presque 7 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...

environ 7 ans il y a | 1 réponse | 0

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Question


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...

environ 7 ans il y a | 1 réponse | 0

1

réponse

Question


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...

plus de 7 ans il y a | 1 réponse | 0

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Question


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 ...

presque 9 ans il y a | 1 réponse | 0

1

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Question


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 ...

presque 9 ans il y a | 1 réponse | 0

1

réponse

Question


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); ...

environ 9 ans il y a | 1 réponse | 1

1

réponse

Question


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

plus de 9 ans il y a | 1 réponse | 0

0

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Question


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...

plus de 9 ans il y a | 3 réponses | 0

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A 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...

plus de 9 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...

plus de 9 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...

plus de 9 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...

plus de 9 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...

plus de 10 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 ...

plus de 10 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...

plus de 10 ans il y a

A résolu


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

plus de 10 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 ...

plus de 10 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...

plus de 10 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.

plus de 10 ans il y a

A résolu


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

plus de 10 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 ...

plus de 10 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...

plus de 10 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:...

plus de 10 ans il y a