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**Content Feed**

Can someone help me with these 3D plots?

*you can plot these shapes in the following two ways(you can choose better way you like):* %% Seashell [u, v] = meshgrid...

bijna 9 jaar ago | 0

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How can I draw a 3D-cylinder pile up by 2D-circles???

you can make a cylinder from piles as follow using *cylinder* in MATLAB: NumberOfPiles = 5; % Number of piles in cylinder ...

bijna 9 jaar ago | 0

delete null in matrix

do it like this: M=[ 0 0 0 7.9286 10.1000 14.3714]; M = M(M ~= 0)

bijna 9 jaar ago | 0

Problem using ezplot function

replace this: figure; hold on; ezplot(Vx,[t1 t2]); with ezplot(Vx,[t1 t2]), hold on It will keep the old plo...

bijna 9 jaar ago | 0

How to convert a matrix into a 3d matrix

here is an example to repeat a matrix N times in the 3rd dimension a = rand(10); % your matrix b = repmat(a, 1, 1, 5); %...

bijna 9 jaar ago | 3

| accepted

pixel position and its value

try this: [Y, X] = ind2sub(size(b), find(ismember(b, 1))) here *b* is your image matrix. It gives you X and Y positions ...

bijna 9 jaar ago | 0

Passing Matrix using call by reference

Define you function as below: function y = myFunc(x) y = 2; end then try this in command window: x = 1; ...

bijna 9 jaar ago | 0

Will you please rectify the errors in the program?

Arti run this code and you will see the graph: Nde = 2.7*10^19; Nsdp = 1*10^20; lateralstraggle = 2*10^-9; seff = ...

bijna 9 jaar ago | 0

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How to I include a structure value in a title?

mystruct=struct('val1',80); title(['Title for plot where struct value mystruct.val1 is equal to ', num2str(mystruct.val1)])...

bijna 9 jaar ago | 0

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How create a interaction method to re-calculate a equation if a condition is not satisfied

try this: Tin=input('Input T'); D=5; t=0.362; E=2.9e07; ws=17.9148297590378; R=1448.88; alfa=1.96; h=R...

bijna 9 jaar ago | 0

| accepted

How can I search through a row in a cell array to find strings?

Dear Justin, you can find the occurances of string 'DIRs' in cell array as follow: [~, ~, MyDATA] = xlsread('filename.xlsx'...

bijna 9 jaar ago | 0

Remove accent from struct

you can do it like this: names = {files.name}; str = {'Á', 'É', 'Í', 'Ó', 'Ú', 'á', 'é', 'í', 'ó', 'ú'}; strreplace =...

bijna 9 jaar ago | 1

| accepted

Help plot with cell array scale problem

try this: x = [43.7347 43.7354 43.7368 43.7370 43.7371 43.7374 43.7373 43.7377 43.7383 43.7388 0 0 43.7403]; NGPSLongitu...

ongeveer 9 jaar ago | 0

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Convert data to binary and ASCII format

You can do it as follow: a = [3 2 1; 1 2 3; 2 3 1]; dec2bin(a) % decimal to binary conversion b = double(num2str(a)) ...

ongeveer 9 jaar ago | 0

How to sort the matrix according to specific row?

you can do it as follow: For example you have your data in variable *A* then use following line to do it: A(16:16:end, :...

ongeveer 9 jaar ago | 0

| accepted

loop to create the new matrix which contains the kron product

you can do it as follows: A = round(rand(3,3)*10-5); B = round(rand(3,3)*20-10); for i = 1:size(A, 1) for j = ...

ongeveer 9 jaar ago | 0

Using nested loops to solve kronecker product

you can do it as follows(if you have square matrices of same size): A = round(rand(10,10)*10-5); B = round(rand(10,10)*2...

ongeveer 9 jaar ago | 0

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periodic function with n cycles

you can do it as follow: count = 1; for t = 0:pi/3:pi - pi/3 if mod(count, 2) == 1 x = linspace(t, t +...

ongeveer 9 jaar ago | 0

I have x and y data, How can I do linear fit to the data, find out c of linear fit line and slope with respect to y=m*x ?

If you are given values of x and y and both x and y hase same number of elements in them then you can compute m and c as follow:...

ongeveer 9 jaar ago | 3

Find the maximum value and its location from a matrix using two nested loops

you can do it as follow: MaxValue = -Inf; row = 0; column = 0; for i = 1:size(K, 1) for j = 1:size(K, 2) ...

ongeveer 9 jaar ago | 0

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Issue in specifying input arguments for interp2 function

you can do it as follow: [x, y] = meshgrid(1:20); % Define x-y grid on which z values will be located z = randi([0 1], 2...

ongeveer 9 jaar ago | 0

How to fill a matrix with a condition?

try doing it like this: [x, y] = meshgrid(-35:.25:35); [phi, rho] = cart2pol(x, y); z = zeros(size(x)); z(rho <= 2...

ongeveer 9 jaar ago | 1

| accepted

How to load files identified by the matlab function of "dir"?

you should read files like this: directoryString = 'YourDirectory'; files = dir(strcat(directoryString,'*.mat')); ...

ongeveer 9 jaar ago | 0

Algebric reconstruction technique in computed tomography

This technique is already implemented by someone which you can find in the following link: <http://www.mathworks.de/matlabcen...

ongeveer 9 jaar ago | 0

i want to draw 10 lines from x =0 till x=10 in 3d i tried but i wouldnt get my result any thoughts??

do need something like this: x = 1:10; y = 1:10; for i = 1:10 plot3(x, y, x + i), hold on end Is it corr...

ongeveer 9 jaar ago | 0

Please help me put this into a proper for loop, using increments

The part after ***************** can be written in loop as follow: DiyFi1OverRChanged= (M1 * rChanged) * dt / ( (b1^2+rChan...

ongeveer 9 jaar ago | 0

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Plotting a function that is equal to 0.

One way to plot this equation is using 'ezplot' as follow: ezplot('0.651 - 0.728 * x - 0.552 * y - 0.006 * x * y - 0.071 * ...

ongeveer 9 jaar ago | 0

| accepted

I am trying to draw a pyramid.

Dear Micheal, you don't need to use surf for this purpose just use fill. Below is your corrected code: function [] = pyrami...

ongeveer 9 jaar ago | 0

| accepted

How to use the power operator in xlabel?

use xlabel as below: xlabel('A*R^(2/3) (m^(8/3))', 'Interpreter', 'none')

ongeveer 9 jaar ago | 3

| accepted

convert Matlb files to DLL files

Dear Itai, Once I was also asked to do that as well and I did in the following way and worked for me quite well. You can find...

ongeveer 9 jaar ago | 1