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Sidafa


Last seen: 4 years 前 |  自 2013 起处于活动状态

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已回答
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...

7 years 前 | 0

提问


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...

7 years 前 | 1 个回答 | 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...

7 years 前 | 1 个回答 | 0

1

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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...

8 years 前 | 1 个回答 | 0

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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 ...

9 years 前 | 1 个回答 | 0

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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 ...

9 years 前 | 1 个回答 | 0

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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); ...

9 years 前 | 1 个回答 | 1

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

9 years 前 | 0 个回答 | 0

0

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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...

9 years 前 | 3 个回答 | 0

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已解决


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...

10 years 前

已解决


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...

10 years 前

已解决


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...

10 years 前

已解决


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...

10 years 前

已解决


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...

11 years 前

已解决


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 ...

11 years 前

已解决


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...

11 years 前

已解决


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

11 years 前

已解决


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 ...

11 years 前

已解决


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...

11 years 前

已解决


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

11 years 前

已解决


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

11 years 前

已解决


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 ...

11 years 前

已解决


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...

11 years 前

已解决


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:...

11 years 前