Asad (Mehrzad) Khoddam

UWM

Last seen: 2年弱前 | 2016 年からアクティブ

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PhD Student at UWM

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Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

2年以上前

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calculate the length of matrix
input 1 array, calculate the length

2年以上前

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Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

2年以上前

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Add a diagonal of zeros to a matrix in MATLAB
You can use a loop like this: M1 = [ 1 2 3 4 2 5 4 2 3 4 5 1 4 2 1 2 ]; N=size(M1,1); M2=ze...

約4年前 | 2

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why my Matlab calculate a simple code so solw?
When you use this command: two = 1 + 1 The program should display the results and it takes time to transfer data to graphic ca...

約4年前 | 0

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vector input to wrldmagm
The function only accepts scalar values not vectors. You may use a loop to extract the magnetic field for every element of your ...

約4年前 | 0

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Renaming output files so as not to overwrite when name is duplicated
You can use some code like this: filename = '202004'; n=0; if ~isempty(dir(filename)) for n=1:1000 newFile = fp...

約4年前 | 0

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Newton Raphson Method in a for loop
Newton method is originally for root finding. If you want to use it for optimization, the derivative of the function should be z...

約4年前 | 0

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Generate a general Matlab code
There are3 steps: 1- Shifting the (x0, y0) to the origin 2- Rotation about the new origin 3- Shifting back to the actual aori...

約4年前 | 0

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"Error using plot, Value not a numeric scalar"
it should be y1(i), y2(i). or y3(i)

約4年前 | 0

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Plot a vector field from a matrix
You can use a scale like this: N=100; theta=2*pi*rand(N,N); % random for this example only [X,Y]=meshgrid(1:N,1:N); U=cos(...

約4年前 | 0

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How can I modify this code so it gives the value 0 for c. It should only provide ax^2+bx
%x=[0 .5 1 1.5 2 2.5 3 3.5 4 4.5 5]; %y=[0 -5.27 -8.10 -8.46 -6.38 -1.84 5.15 14.59 26.48 40.83 57.63]; function [coefficients...

約4年前 | 1

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Determining if the columns of a matrix are orthogonal
Regarding the case i==j, you can start j from numbers greather than i: A = magic(4) orth = 1; for i = 1:n for j = i+1:n...

約4年前 | 0

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How to convert number to string with fixed length?
You can use sprintf s=sprintf('%05d',124); disp(s); %05d means that you have leading zeros and the total length 0f 5

約4年前 | 1

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Find angle of rotation matrix in MATLAB
I = [11755 0 4821; 0 15000 0; 4821 0 23245]; Iwant = [10000 0 0; 0 15000 0; 0 0 25000]; t = 0; i=1; tList = 0:.02:3.14; dLi...

約4年前 | 0

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Why do I keep getting this error message? Error using ./ Matrix dimensions must agree.
if you want to solve the equations, use this: x=A\y;

4年以上前 | 0

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Trying to make a simulated coin flip
binornd(1,.5,nsamples,1)

4年以上前 | 1

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what is the function used to give parabolic load on the free end of the cantilever beam
The q value (shear stress) is equal to Then you need to inegrate from for example -3 to 3 , 3 to 9 to find P value

4年以上前 | 0

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Three exponential fit with curve fitting toolbox
In the toolbox, there is an option to define a custom model. https://www.mathworks.com/help/curvefit/custom-nonlinear-models.ht...

4年以上前 | 0

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Error using fprintf Invalid file identifier. Use fopen to generate a valid file identifier. Function help
Because E is a numeric variable, it conot be used directly in your case. Use E with some formatting: fprintf('%g\n',E)

4年以上前 | 0

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How do I write a number and Letter in the same line?
You can use: fprintf('grade=%f, %s\n',n, grade);

4年以上前 | 0

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finite element method with matrix error
Can you show the values of the nodes and elements data?

4年以上前 | 0

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Seeking a little clarification on using sprintf with %d and formatSpec etc. to load similar *.MAT filenames that only differ in name by number.
you can use: sprintf('Band%dHz.mat', k*200);

4年以上前 | 0

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"SWITCH expression must be a scalar or a character vector".
Try to get 'Value' in the call back function: handles.patient = get(hObject,'Value');

4年以上前 | 0

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How can I make a variant submatrix?
You can use vectors to point to the indices of matrix A, For example: A(1:10, 1:10); % the first one A(11:20, 1:10) % second ...

4年以上前 | 0

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Saving Multiples Variable of a function
If you want to use the variables in the other function, use this command in both functions: global dZ3 dW3 db3 dZ2 dW2 db2 dZ1 ...

4年以上前 | 0

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how do I start this?
As the quest said, you can use Matlab's spline function.

4年以上前 | 0

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2-D Truss Analysis
One t was missing in UniVctor: %.... Input problem data nNodesP = 12; nMembersP = 21; NodeP = zeros(nNodesP, 3); %Initializ...

4年以上前 | 0

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Bisection method help.
function x = Bisection(a, b, Nmax, TOL) f=@(x) x.*x.*x-2; i=1; ya = f(a); while i <= Nmax m=(a+b)/2; ym=f(m); ...

4年以上前 | 0

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Converting for loop to while loop
for i =1:5 j=1; k=1; while j<=5-i fprintf(' '); j = j+1; end while k<=i fpri...

4年以上前 | 1

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Asad (Mehrzad) Khoddam

UWM

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