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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 mois il y a | 1 réponse | 0

1

réponse

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 mois il y a | 2 réponses | 0

2

réponses

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 mois il y a | 1 réponse | 0

1

réponse

A soumis


image2surf
Convert image to height matrix

9 mois il y a | 1 téléchargement |

A résolu


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

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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 ...

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

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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 ...

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

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

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

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

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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...

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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 ...

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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...

plus d'un an il y a | 1 réponse | 0

1

réponse

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...

plus d'un an il y a | 1 réponse | 0

1

réponse

A soumis


pargif
tbd

presque 2 ans il y a | 2 téléchargements |

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...

plus de 2 ans il y a | 1 réponse | 0

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réponse

A résolu


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...

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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...

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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...

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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...

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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','...

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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...

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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...

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

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

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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...

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~~~~~~~ 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...

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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...

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