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구구


Last seen: Today |  Active since 2021

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Question


ODE15s nondimensional Jacobian matrix can help convergence?
Hi I'm trying to solve a transient multiphysics problem with MATLAB ode15s function. The problem consists of three physical sy...

5 maanden ago | 1 answer | 0

1

answer

Question


odextend initial guess error
I am using ode15s to analyze the steady state of the system from the initial state (time t0) and then using odextend to analyze ...

6 maanden ago | 2 answers | 0

2

answers

Question


ODE function return additional time dependent values
The equation I'm integrating is M x'' = F, which is the basic rigid body equation of motion and also performs transient heat con...

8 maanden ago | 1 answer | 0

1

answer

Submitted


image2surf
Convert image to height matrix

8 maanden ago | 1 download |

Solved


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

meer dan een jaar ago

Solved


Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

meer dan een jaar ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

meer dan een jaar ago

Solved


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

meer dan een jaar ago

Solved


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

meer dan een jaar ago

Solved


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

meer dan een jaar ago

Solved


Inner product of two vectors
Find the inner product of two vectors.

meer dan een jaar ago

Solved


Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

meer dan een jaar ago

Solved


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...

meer dan een jaar ago

Solved


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 ...

meer dan een jaar ago

Question


why matlab is using all cores when no parallel pool is created
Hi Something weird is happening on my matlab code. I'm using AMD Ryzen Threadripper 2990WX (32 physical cores). I have paral...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


Can I run MATLAB function from each excel file using macro at the same time?
I wanted to run MATLAB function from excel file and it worked using VBA and excel macro. For parametric study I made several ex...

meer dan een jaar ago | 1 answer | 0

1

answer

Submitted


pargif
tbd

bijna 2 jaar ago | 2 downloads |

Question


GA is not satisfying nonlinear constraints
I'm using GA to optimize geometry for maximum safety ratio. Input parameter contain length, width, and etc, and the nonlinear c...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Solved


Vector pop
Take |n| elements from the end of the vector |v| and return both the shorten vector |v| and the |n| elements in a separate vecto...

meer dan 2 jaar ago

Solved


Vector push
Append an element |x| to the end of the vector |v| and return both the extended vector and the new number of its elements. |x| c...

meer dan 2 jaar ago

Solved


Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

meer dan 2 jaar ago

Solved


Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

meer dan 2 jaar ago

Solved


2048 Next Move
Given a board in the game 2048 (see the game here: <http://gabrielecirulli.github.io/2048/ 2048>) and a direction ('up','down','...

meer dan 2 jaar ago

Solved


Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

meer dan 2 jaar ago

Solved


Extract part elements of matrix into one new matrix
Given a matrix that includes different nonzero and zero entries, extract the nonzero elements and form a new matrix. The new mat...

meer dan 2 jaar ago

Solved


Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

meer dan 2 jaar ago

Solved


Find max
Find the maximum value of a given vector or matrix.

meer dan 2 jaar ago

Solved


Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

meer dan 2 jaar ago

Solved


~~~~~~~ WAVE ~~~~~~~~~
|The WAVE generator| Once upon a time there was a river. 'Sum' was passing by the river. He saw the water of the river that w...

meer dan 2 jaar ago

Solved


Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

meer dan 2 jaar ago

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