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LightFury Yeji


Last seen: mer än 2 år ago |  Active since 2021

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SIMULINK Blue and black components
The way I understood it, I cannot connect blue and black components in Simulink. I am trying to create a simple circuit that loo...

mer än 2 år ago | 1 answer | 1

1

answer

Question


How to display a certain answer
I currently have the output If I only want to display the value of w(i,j) for, let's say, when xi=0.5 and tj=0.3 (so the answ...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


I only need to display the first 11 rows of the answer
My program displays an output with so many rows, but I only need the first 11. How do i solve this? Please help This is the out...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


Unable to convert expression containing symbolic variables into double array.
I am following this algorithm (pic) and in Step 4, in the line "wij(i,2)=(1-lambda^2)*f(i*h)+(lambda^2/2)*(f((i+1)*h)+f((i-1)*h)...

ungefär 3 år ago | 2 answers | 0

2

answers

Question


Index in position 1 is invalid but I need w(0,j), w(0,0), and w(m,0)
I am following an algorithm for wave equations (shown on the pic). I get the error "Index in position 1 is invalid. Array indice...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


Answers keep on iterating
This program is made to approximate the solution to the Poisson equation. I get the correct answer but it keeps on repeating the...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


I only need the output from the last iteration
This code repeats 0.1 to 0.9 x-values (first column) with its corresponding wij values (second column) 50 times, but I only need...

ungefär 3 år ago | 1 answer | 0

1

answer

Question


ui(1) is defined but "Index exceeds the number of array elements (1)." still pops up for i=2:
Error "Index exceeds the number of array elements (1)." in line 29. This is for i=2:m-2 so ui(i-1) first refers to ui(1), which...

ungefär 3 år ago | 1 answer | 1

1

answer

Question


Program does not show the matrix
This program is made to approximate the solution to the Poisson equation. I have no errors with the equations, but it won't disp...

ungefär 3 år ago | 1 answer | 0

1

answer