Community Profile # Doddy Kastanya

Last seen: 5 jours ago Active since 2017

I love math and physics. Being a nuclear engineer keeps this alive.

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Filling missing points in a grid
You could try to add the following at the end of your code: hold on text(7,8,'X','color','r') If there are other points, then...

6 mois ago | 0

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Need Help Coding a Gaussian Problem
You might not be using the correct data for this. For example, in your implementation x_i and x_j are simply numbers. Shouldn't ...

6 mois ago | 0

How can I find the median of each row in a matrix?
Try this (assuming that your matrix is called A): for i=1:150 x=sort(A(i,:)); median_value(i)=0.5*(x(2)+x(3)); end You will...

6 mois ago | 0

solve large sparse jacobian matrix (with an example)
I assume that the Jacobian matrix is needed as a part of implementing Newton's method to solve system of non-linear equations. F...

9 mois ago | 0

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Matlab function solve number pattern
The following code listing should do it (ignore the zeros in the output): cnt=0; for i=1:5 for j=1:i cnt=cnt+1; ...

9 mois ago | 0

symbolic system of equations matlab
You might want to check out the information in the following link https://www.mathworks.com/help/symbolic/solve-a-system-of-alge...

9 mois ago | 0

Multiplication between matrices with different dimensions
Your loop is in terms of "w"; however, in the loop "w" is not used at all. Shouldn't "i" be "w"? The pseudoinverse matrix can b...

9 mois ago | 0

Newton's Optimization Method
The following link provides information about Hessian Matrix for a scalar function: https://www.mathworks.com/help/symbolic/hess...

9 mois ago | 0

Plotting a graph on MATLAB
In order to see more "dots", you need to add "hold on" on the line after plot. However, since you want to plot it against the nu...

9 mois ago | 0

Add title to subplot (a), (b), (c) with already existing titles for parameters.
You might want to take a look at this posting: https://www.mathworks.com/matlabcentral/fileexchange/85453-subplotlabel/?s_tid=ml...

9 mois ago | 0

| accepted

Add title to subplot (a), (b), (c) with already existing titles for parameters.
You probably could add the "(a)" (or b, c, d, e, or f) before specifying the beta_e and t_f in the title section.

9 mois ago | 0

for loop issue not all answer printing out
Hi Anastasia, The problem is you did not store the results as a vector; therefore, when you printed out the table, only the las...

9 mois ago | 0

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Inverse matrix with for loop
The way you prepare the cofactor is okay. You want to define your "k=transpose(c)" outside of the loop. The other thing that you...

10 mois ago | 0

How do I write an equation when I have both a variable and its value for one side
The problem as you presented is non-linear and would need some manipulations before you can solve it. However, if "y=a+b" instea...

10 mois ago | 0

draw this figures using matlab code
The plots seem to be very straight forward to generate. You might want to try "help plot" to see various options to plot the dat...

10 mois ago | 0

If i have a given Matrix (k x k), how can i expand it to a (n x n) matrix?
It is not clear how the B and C matrices are related to A. However, if you just want to do QR decomposition, you might want to t...

10 mois ago | 0

Plotting Two Sets of Data on 2 X Axes and 1 Y Axis
To avoid overlap of the two x-axis, you might want to use 'top' for 'XAxisLocation' for ax2.

10 mois ago | 0