Mohit Kumar
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Feeds
Pregunta
How to create a 3D matrix from subtracting 2D matrices (like creating 2D matrix from subtracting vectors)?
Hi, I wish to extend the behavior of subtracting a row vector and a column vector to matrices. Let me provide an example: Suppo...
alrededor de 2 años hace | 1 respuesta | 0
1
respuestaHow to construct this matrix without using two for loops?
I was able to figure out the answer to this. The formulation can be written as A = V' * X * V;
casi 3 años hace | 1
Pregunta
How to construct this matrix without using two for loops?
Hi, I'm trying to construct a matrix in the following manner: sz=10; V=rand(sz,sz); X=rand(sz,sz); for iter1=1:sz for ...
casi 3 años hace | 1 respuesta | 0
1
respuestaPregunta
xlim is not working with the limitmethod option, and how to change its default behaviour?
Hi, I am trying to run xlim('tight') but this gives me an error. According to the documentation it should work. The error is: ...
alrededor de 3 años hace | 1 respuesta | 0
1
respuestaPregunta
How to solve a boundary value problem for a piecewise linear differential equation?
I have two a set of two second order differential equations to which I want to find a periodic solution. The differential equati...
más de 3 años hace | 0 respuestas | 0
0
respuestasPregunta
How to check if a user entered input will form a valid function handle?
The user enters a character vector (in the edit text field of Appdesigner). I want to convert it into a function handle. I am do...
más de 3 años hace | 1 respuesta | 0
1
respuestaPregunta
How to get mouse coordinates in GUI (AppDesigner) ?
I am using MATLAB App Designer and have inserted axes into the app. When the user clicks a button, I want them to be able to t...
más de 3 años hace | 1 respuesta | 0
1
respuestaPregunta
Why is fimplicit not plotting x^2 = 0 ??
I have a code that takes in an implicit function from the user and then plots it. However, I ran into this odd problem where fim...
más de 3 años hace | 2 respuestas | 0
2
respuestasPregunta
How to find all solutions to a system of two nonlinear equations?
I have a system of two nonlinear equations (f(x,y)=0 and g(x,y)=0) to which I want to find all roots over a region (say x from -...
más de 3 años hace | 2 respuestas | 0
2
respuestasPregunta
How to plot a vector field with coloured arrows?
I'm trying to create a vector field where the colour of the vector represents its magnitude like the one shown in the picture. A...
más de 3 años hace | 1 respuesta | 0
1
respuestaPregunta
How to display Live Editor output in multiple lines?
I have large equations in the output of my code that I want to view. However, in the Live Editor output window it only allows me...
más de 3 años hace | 1 respuesta | 0
1
respuestahow to use a excel colum as an input to a function
Hi Giovanna, To change your function so that it works with matrices, all you have to do is replace your multiplication and divi...
casi 4 años hace | 0
How to solve such a system of nonlinear equations?
Hi, I think this might be a better approach to your problem : img=zeros(320,320); % create a 320x320 zeros matrix to represen...
casi 4 años hace | 0
Pregunta
How to ensure that dsolve provides a trigonometric solution to a second order differential equation?
Hi, I'm trying to solve the following linear second order equation with dsolve in the symbolic workflow. When I solve it I g...
casi 4 años hace | 1 respuesta | 0
1
respuestaPregunta
How to numerically solve a differential equation with a dirac delta function ?
The differential equation that I want to solve is Upon using ode45 and the dirac function, the dirac function doesn't seem t...
casi 4 años hace | 1 respuesta | 0
1
respuestaPregunta
Symbolic toolbox not simplifying adequately
I'm using MATLAB Live Editor along with the symbolic toolbox. The following expression is not getting simplified. Any fixes? ...
casi 4 años hace | 1 respuesta | 0
1
respuestaPregunta
How to (cleverly) index points in a plot?
I have a for loop which plots a point each iteration. In total there are about 4000+ points to be plotted. From the figure, I w...
casi 4 años hace | 1 respuesta | 0
1
respuestaIssue with fsolve tolerance
Turns out function tolerance is compared with norm(fval)^2and the default tolerance was 1e-3. Simply changed it to 1e-10 (in acc...
casi 4 años hace | 0
| aceptada
Pregunta
Issue with fsolve tolerance
I am using fsolve to solve an overdetermined system of equations using the levenberg marquadt algorithm. It works fine although...
casi 4 años hace | 1 respuesta | 0
1
respuestaPregunta
How to repeat a column several times?
Consider this scenario - a =[1;2.3;3.2;4.5;5.7]; b=[a,a,a,a,a]; Is there a better way to do this?
alrededor de 4 años hace | 0 respuestas | 0
0
respuestasPregunta
ODE45 not solving Duffing Oscillator with negative nonlinear coefficient
Hi, I'm trying to solve the duffing oscillator with a negative nonlinear coefficient (named b, see below). When I do so, ode45 ...
alrededor de 4 años hace | 1 respuesta | 0
1
respuestaPregunta
What is the s_rot() function ?
I came across this code in a textbook (Multibody Dynamics, Nikravesh P.E.) - % Example 2.3 % Define vectors a and b a = ...
más de 4 años hace | 1 respuesta | 0
1
respuestaPregunta
How to minimise a value which is found by solving transcedental equations (using fsolve)?
I want to minimise the coefficient of variation of the y coordinate of the rocker chassis joint of the rocker bogie suspension s...
más de 4 años hace | 0 respuestas | 0
0
respuestas
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