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ssmith


Last seen: presque 2 ans il y a |  Actif depuis 2021

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Plotting complex sinusoid to a cosine wave
I have the complex exponential equation (z) and I want to adjust the plot to produce a cosine wave of amplitude of 5.0 that is s...

presque 2 ans il y a | 1 réponse | 0

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Question


How do you use ode45( ) when the equation is not in dy/dt form?
I have an equation that I need to approximate the solution for using ode45( ) with initial values y(0) = 1 and y'(0) = 0 on inte...

environ 3 ans il y a | 2 réponses | 0

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I have initial value problem that I have to write the right side into a vector function
I have DEs that I need to write into a vector function and use ode45 to approximate the solution for the initial value proble...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question


How to adjust axes created using plot
I have a function that I have plotted on an interval of [-10,10] but I am not sure what the function is that will adjust the axe...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question


rref( ) row echelon form MATLAB
I found the row echelon form of my matrix A but now I am trying to find the solution set to the system. Is there a function that...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question


I have differential equations and I need to write them into a vector function
How do you write the right-hand-sides of the differential equations into a vector function?

environ 3 ans il y a | 1 réponse | 1

1

réponse

Question


Trying to write a function using @
I am trying to write this function in my code but I am getting an invalid MATLAB syntax error. The equation is g(x) = sin(x)/x ...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question


Use colon notation to rewite a linear system
Suppose A is an augmented matrix representation of a linear system. A = [-1, 2, -3; 4, -5, 6] Rewrite as matrix equation Cx ...

environ 3 ans il y a | 1 réponse | 0

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Question


Trying to do product of eigenvalues collected from a matrix
I have a matrix that I have used eig() to find the eigenvectors and eigenvalues, but I cannot determine whether the matrix is in...

environ 3 ans il y a | 2 réponses | 0

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réponses

Question


How to get rid of floating-point constants
I am trying to evaluate this expression but I get an error saying I have a floating-point constant. If I add another parenthases...

environ 3 ans il y a | 1 réponse | 0

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réponse

Question


MATLAB determine if matrices are invertible or not
I have two matrices that I am looking to find the determinants of and see if they are invertible or not. I entered in my matri...

environ 3 ans il y a | 2 réponses | 0

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réponses

Question


How to solve matrix raised to -1
I have a matrix A, and I am looking to find matrix A^(-1) but cannot seem to enter it into MATLAB in the correct format. Here is...

environ 3 ans il y a | 1 réponse | 0

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Question


Colon Notation Function using Matrices
I have two matrices A = [-1, 2, -3; 4, -5, 6] B = [0, -1; 2, 10; -4, 3] And I need help understanding what is happening in t...

environ 3 ans il y a | 2 réponses | 0

2

réponses

Question


When you type m(1) or m(10) in the command window, what is happening?
m(1) ans = -3 m(10) ans = 0.6000 m(0) Array indices must be positive integers or logical values. m(0) does n...

environ 3 ans il y a | 1 réponse | 0

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Question


Hello I need MATLAB help
dicomread to load the images but I am not sure how to go about loading the files from a folder. If anyone can help I would great...

environ 3 ans il y a | 2 réponses | 0

2

réponses

Question


Save Movie Video to Computer
I have almost 600 dcm files saved into one large folder that I want to load into my MATLAB code to read the data files and print...

environ 3 ans il y a | 1 réponse | 0

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Question


I am trying to use imshow to take data in a .txt file and print out the image made from the data.
So far my code looks like this a = dlmread('data.txt'); imshow(a); But when I go to run the code I get an error saying "E...

environ 3 ans il y a | 1 réponse | 0

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réponse