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Mohit Kumar


Last seen: Today Active since 2019

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Question


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...

6 dagen ago | 1 answer | 0

1

answer

Answered
How 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;

9 maanden ago | 1

Question


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 ...

9 maanden ago | 2 answers | 0

2

answers

Question


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: ...

10 maanden ago | 1 answer | 0

1

answer

Submitted


Phase Portrait Plotter
Plot the phase portrait for the entered system of differential equations

10 maanden ago | 104 downloads |

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Question


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...

meer dan een jaar ago | 0 answers | 0

0

answers

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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 -...

meer dan een jaar ago | 2 answers | 0

2

answers

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Answered
how 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...

meer dan een jaar ago | 0

Answered
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...

meer dan een jaar ago | 0

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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? ...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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...

meer dan een jaar ago | 1 answer | 0

1

answer

Answered
Issue 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...

meer dan een jaar ago | 0

| accepted

Question


Issue with fsolve tolerance
I am using fsolve to solve an overdetermined system of equations using the levenberg marquadt algorithm. It works fine although...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


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?

bijna 2 jaar ago | 0 answers | 0

0

answers

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

bijna 2 jaar ago

Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

bijna 2 jaar ago

Solved


Return area of square
Side of square=input=a Area=output=b

bijna 2 jaar ago

Solved


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...

bijna 2 jaar ago

Solved


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]; ...

bijna 2 jaar ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

bijna 2 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...

bijna 2 jaar ago

Solved


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

bijna 2 jaar ago

Solved


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

bijna 2 jaar ago

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