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Virajan Verma


Last seen: 2 years ago |  Active since 2018

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 years ago

Answered
How to solve this multi degree of freedom equation using matlab code by applying newmark method.
I have following two codes @Isha Sameen...You can apply these

3 years ago | 0

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I am getting this error "Assignment has more non-singleton rhs dimensions than non-singleton subscripts". Please help. Mw, Cw and Kw are 243X243 matrices.
t_init = 0; t_final = 3; t_incr = 0.005; n = (t_final-t_init)/t_incr; tt = t_init:t_incr:t_final; trange = [t_init t...

4 years ago | 1 answer | 0

1

answer

Answered
How to solve this multi degree of freedom equation using matlab code by applying newmark method.
Anyone out there?? Please help me wih this. Stuck in this for a long time now

4 years ago | 1

Question


How to solve this multi degree of freedom equation using matlab code by applying newmark method.
MX+Cx+Kx=F(t)

4 years ago | 3 answers | 0

3

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Question


I am writing an FEM code for a curved box girder bridge and getting an error..Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 9.359430e-32. > In Dec14 (line 579)
X_matrix=inv(K_modi)*F_matrix;

6 years ago | 3 answers | 0

3

answers

Question


How to read values from an input file containing two different columns ? The values are shown below in the main body.
3 26 -1000000.000 60 2000000.000 128 1000000.000

6 years ago | 1 answer | 0

1

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How to apply loads(forces and Moment) in certain positions of nodes? If i have 8 elements, no. of nodes per element=3,no. of Degree of freedom per node=9,total no of nodes=17,Total no. of degree of freedom(EL​TSIZE)=153​?Attached a lookalikeC program
float r_matrix[ELTSIZE], x_mat[ELTSIZE]; int non_zero, i_z; for (i = 0; i < ELTSIZE; i++) r_matrix[i] = 0; scanf (" ...

6 years ago | 0 answers | 0

0

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Question


How to apply loads(forces and Moment) in certain positions of nodes? If i have 8 elements, no. of nodes per element=3,no. of Degree of freedom per node=9,total no of nodes=17,Total no. of degree of freedom(ELTSIZE)=153?Attached a lookalikeC program.
float r_matrix[ELTSIZE], x_mat[ELTSIZE]; int non_zero, i_z; for (i = 0; i < ELTSIZE; i++) r_matrix[i] = 0; scanf (...

6 years ago | 0 answers | 0

0

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Error in my C program. Please help.
int show_matrix(float c[9][27], int size1=9, int size2=9) ERROR=expected ';' ',' or ')' before '=' token

6 years ago | 0 answers | 0

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Answered
Convert this C program into matlab. Please help. Stuck very badly as con[i][j] matrix is showing decimal nos. like 23.33(which is obviously not accepted in indexing in matlab).That error is showing in MG_matrix[con[eltn][i] - 1][con[eltn][j] - 1]
@Torsten. How can i thank you. U have really solved this obstacle i was on since many days. Really appreciate ur skills and than...

6 years ago | 0

Question


Convert this C program into matlab. Please help. Stuck very badly as con[i][j] matrix is showing decimal nos. like 23.33(which is obviously not accepted in indexing in matlab).That error is showing in MG_matrix[con[eltn][i] - 1][con[eltn][j] - 1]
for (ip=0;ip<9;ip++) { Ms3_matrix[i][j]=Ms3_matrix[i][j]+w3(epsilon3)*J*NTM_matrix[i][ip]*N_matrix[ip][j]; Mte3_matrix[i][...

6 years ago | 2 answers | 0

2

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I want a connectivity matrix of size 30x27 of the form shown in the body below. Please suggest an answer.
1 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 7 0 0 0 0 0 0 ...

6 years ago | 1 answer | 0

1

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How to solve INDEX OUT OF BOUNDS ERROR? Please help me. Stuck in this for the past 10 days.
eltn=30; %%(b)Element Connectivity Table count = 0 ; conn = zeros([],3) ; for i=1...

6 years ago | 1 answer | 0

1

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Question


Getting an index out of bounds error in my matlab program. Please help. Stuck in this for quite a while now.
count = 0 ; conn = zeros([],3) ; for i=1:30 for j=1:27 count = count+1 ; conn(count,:) =[j,j+1,...

6 years ago | 1 answer | 0

1

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Question


Converting a loop into a matrix form. How to do?? Help please.
(b)Element Connectivity Table for i=1:30 for j=1:27 conn=[j,j+1,j+2] end end Convert this 1x3 matr...

6 years ago | 1 answer | 0

1

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What this indexing error all about in my matlab program. please help.
%%Transpose of N_matrix for i=1:26 for j=1:8 NT_matrix(i,j)=(N_matrix((i-1),j));(ERROR HERE) end end ...

6 years ago | 1 answer | 0

1

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Getting an error "Matrix Dimension must agree" in matlab program. Help me.
for epsilon3=-1:1:1 N_dash(1)=-0.5+epsilon3; N_dash(2)=-2*epsilon3; N_dash(3)=0.5+epsilon...

6 years ago | 1 answer | 0

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I am writing an FEM code in matlab. I want to make the sizes of repmat(N_dash, 3, 1) and repelem(ey.', 3, 1) the exact same. Original size of repmat(N_dash, 3, 1) is 3x3 and that of repelem(ey.', 3, 1) is 9x1. Any help will be much appreciated.
for epsilon3=-1:1:1 N_dash(1)=-0.5+epsilon3; N_dash(2)=-2*epsilon3; N_dash(3)=0.5+epsilon3; end ly=(x(5)-x(...

6 years ago | 1 answer | 0

1

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Question


Getting an error "Matrix dimensions must agree" in my matlab program.help
N(1)=0.5*(epsilon3*epsilon3-epsilon3); %%epsilon=natural coordinte N(2)=(1-epsilon3*epsilon3); N(3)=0.5*(epsilon3...

6 years ago | 2 answers | 0

2

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Convert this C program into a Matlab program.
ex[1]=lx/J %%first i term in ex matrix ex[2]=mx/J %%second j term in ex matrix ex[3]=nx/J %%third k term ...

6 years ago | 1 answer | 0

1

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Question


Getting an "index out of bounds error" in my Matlab program. Help.
ex(1)=lx/J %%first i term in ex matrix ex(2)=mx/J %%second j term in ex matrix ex(3)=nx/J %%third k term ...

6 years ago | 1 answer | 0

1

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Question


Got an indexing error here. Please recommend an answer.
for i=1:9 N_matrix(1,i)=N(rem(i,3))*ex(i)/3; %(ERROR HERE) end Attempted to access N(0); index must be a...

6 years ago | 1 answer | 0

1

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Question


How do i correct this mistake in my matlab program? Please help.
ex(1)=lx/J %%first i term in ex matrix ex(2)=mx/J %%second j term in ex matrix ex(3)=nx/J %%third k term ...

6 years ago | 1 answer | 0

1

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Question


Error in my matlab program regarding value of an index. Help.
for i=1:9 N_matrix(1,i)=N(rem(i,3))*ex(i/3);(ERROR HERE) end Attempted to access ex(0.333333); index must be a po...

6 years ago | 0 answers | 0

0

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Getting an indexing error in my matlab program. Please help.
for i=0:8 for j=0:27 N_matrix(i)(j)=0;(ERROR HERE) end end ()-indexing must appear last in an i...

6 years ago | 1 answer | 0

1

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Question


What does [i%3] mean in C? How do we use it in Matlab??
for i=0:8 B_matrix(5)(i+9)=-1/s*N_dash[i%3]*ez[i/3]; end

6 years ago | 0 answers | 0

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Answered
How to read an input text file having multiple values??
Here it is

6 years ago | 0

Question


How to read an input text file having multiple values??
0 0 0 0.5 0 0.049406182 1 0 0.097122055 0 0.51 0 0.5 0.51 0.049406182 1 0.51 0.097122055 1.5 0 0.143149239 2 0 0.187489...

6 years ago | 2 answers | 0

2

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Value of first derivative of Shape function at -1,0 and +1 using for loop?? Error using sym/diff (line 69) The second argument must be a variable or a nonnegative integer specifying the number of differentiations. Error in practise3 (line 29) N1=dif
%%Shape function for axial effect N1epsn=0.5*epsn^2-0.5*epsn; (ERROR HERE) N2epsn=-1*epsn^2+1; N3epsn=0.5*epsn^2+0.5*...

6 years ago | 1 answer | 0

1

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