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# S Priya

Last seen: 9 months ago Active since 2021

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Question

How to create the random sampling matrix for a certain number of times?
I need to find random sample(consisting of 40 values) for 16 elements (each different).Using Em22(:,:,i) will help?How to do it?...

9 months ago | 1 answer | 0

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Question

Substituting a value to a syms function in a matrix?
I have a 4x4 matrix A= [E11e, 0, 0, 0] [ 0, E11e, 0, 0] [ 0, 0, E11e, 0] [ 0, 0,...

10 months ago | 2 answers | 0

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Question

How to write in MATLAB the following PDE?
where u=deformation K=stifness F=force E= Mod of elasticity for i=1:8 (del(Ki)/del(Ei)) * (ui) +(del(ui)/del(Ei)) * Ki=del(...

10 months ago | 1 answer | 0

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Question

Monte Carlo simulation examples
is there any matlab code examples online available for monte carlo simulation?

11 months ago | 3 answers | 0

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Question

Adding zeros in the empty places in a matrix.
A is a 252x1 matrix, and I have values of 1st 13th 25 th 73th 121th 109th 97th 61th row. and have to fill the ...

1 year ago | 1 answer | 0

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Question

How to use a matrix of 12*12 to form a matrix of 96*96?
If B is a 12*12 matrix, and I want to place this B matrix as diagonal matrix of 96*96, How to form this 96*96 diagonal matrix?

1 year ago | 2 answers | 0

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Extracting rows in row-wise manner. How to do this?
Suppose,a matrix A, A=[1 2 3 4; 1 0 2 8; 1 2 3 6....] Size(A)=100 4 And I want to extract each row in a row-wise manner (ie...

1 year ago | 2 answers | 0

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How to eliminate a column from a matrix?
C = C=[ 0.2474 -0.0311 0 0 0 0.5000 ] I want to eliminate the last column. How to d...

1 year ago | 1 answer | 0

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Question

I want to co-relate the local coordinate system with global co-ordinate system of a 8-noded element. How to do it in matlab?
Displacement is given by- d(local)=L*d(global) where L is the transformation matrix. How to proceed with this in matlab?

1 year ago | 1 answer | 0

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Question

What does C(:,:,i)=[Q11 Q12 Q14;Q12 Q22 Q24;Q14 Q24 Q44]; signify?
What does C(:,:,i)=[Q11 Q12 Q14;Q12 Q22 Q24;Q14 Q24 Q44]; signify?

1 year ago | 1 answer | 0

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Question

I want to find out vector subtraction of co-ordinates of 2 adjacent nodes of an element. How to proceed?
Like , the element is 8-noded and I want to find out vector subtraction co-ordinates of 2 nodes(Node 1 and Node 3) ie. |X11-X...

1 year ago | 1 answer | 0

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Question

I need to arrange the elements as shown in the figure. Can anyone suggest an algorithm for this arrangement of elements?
I am currently working in FE analysis. I need to arrange the elements as shown in the figure. Can anyone suggest an algorithm fo...

1 year ago | 1 answer | 0

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Question

How to display the output as table shown below?
z(:,:,1) = 0.4794 0.8776 0 0.0000 1.0000 0 -0.4794 0.8776 0 z(:,:,2) = 0.4794 0.8776 ...

1 year ago | 2 answers | 0

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Question

How to denote the node numbers , when the co-ordinates of all nodes are known?
I have the co-ordinates of all nodes of a structure nodes as x,y and z co-ordinates How do I now denote the node numbers?

1 year ago | 2 answers | 0

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Question

How does reshape function work? and also how to use sum(A,dim) in the code?
1.I want to understand how reshape fuction actually works? 2. While using the sum(A,dim) what the actual meaning of dim here?Fo...

1 year ago | 3 answers | 0

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Question

Why is this "z=x.*exp(-X.^2-Y.^2) " required?
[x,y]=meshgrid(-2:.2:2); z=x.*exp(-X.^2-Y.^2); why is z=.... required??? and also why is (-X.^2-Y.^2)??

1 year ago | 1 answer | 0

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Question

What is the use of plot(x, y, ':') while plotting the graph?
x=0:pi/100:2*pi; y=cos(x); y2=sinx plo(x,y2, ':') why is ':' required?

1 year ago | 1 answer | 0

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Question

Doubt regarding max(A,B).
A=[1 3 5] B=[10 6 4] Why is max(A,B) as [10 6 5]? It should be [5 10]

1 year ago | 2 answers | 0

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Question

Index in position 2 exceeds array bounds (must not exceed 3).
Can anyone please explain me the mistake here, I am not able to understand the error. Theta_n=(theta:(phi/n):(theta+phi)); nNN...

1 year ago | 1 answer | 0

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Question

Why should we write x(i,1)=cos(theta(1,i) in this format while using the for loop?
I have a doubt regarding this way of represention. for i=1:n+1 x(i,1)=R*cos(Theta_n(1,i) Why cant we represent it as- x(i)=...

1 year ago | 1 answer | 0