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Ibraheem


Last seen: 1 day ago |  Active since 2022

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Solving matrix differential equation
Hi I want to solve a 2x2 matrix differential equation, how do I go by it? this is what i currently have syms x1 x2 Dx1 = di...

1 day ago | 1 answer | 0

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answer

Question


how to use inverves in matrix
Hi, I am trying to make an inverse of a value but I keep getting errors, what can i do to solve this issue.

11 months ago | 1 answer | 0

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answer

Question


I can't run a file
Hi I am trying to run a file but i keep getting this error.

11 months ago | 1 answer | 0

1

answer

Question


Plotting a 2d graph
Can someone please help me in plotting a ellipse with a function x^ 2 + 9y ^2 = 9

2 years ago | 1 answer | 0

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answer

Question


calculating Double integral over a region
I am trying to plot this double integral but i keep getting an error, can someone help me out thanks. ymax = @(x) sqrt((9-x....

2 years ago | 2 answers | 0

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answers

Question


Triple integers (cylindrical method)
I am trying to write a code for a triple integral with function of r (radius) t (theta) z xy/2 <= z <= (x^2+2y^2) 1/2 x = rcos...

2 years ago | 1 answer | 0

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answer

Question


Making a horizontal region between two functions
How do i fix this, my region is showing on the wrong part of the fuction, but i want it on the other part. can i get help f = @...

2 years ago | 1 answer | 0

1

answer

Question


Creating horizontal regions between functions
I tried doing it, but i kept getting it wrong, can you help and tell me what my mistake is. f = @(x) cos(x); g = @(x) x-x; a...

2 years ago | 1 answer | 0

1

answer

Question


how to flip a function
I am trying to flip the last plot so it can fit into the other plots f = @(x) x.^3; g = @(x)x; a = 0; b =1; fplot(f, [a, b...

2 years ago | 1 answer | 0

1

answer

Question


Creating a horizotal region
I don't really understand how to create a horizontal region between two functions in a graph. I did this to get the vertical re...

2 years ago | 0 answers | 0

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answers

Question


plotting as a function of x
I have no problem ploting as a function of y but when i try replicating it and plotting it as a function of x i get an error or ...

2 years ago | 1 answer | 0

1

answer

Question


How to do type II double integration on matlab
I have no problem using type I (dydx) and when I use it i get the correct answer but if i try replicating the same method using ...

2 years ago | 2 answers | 0

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answers

Question


Example of how to use verticalregion
can someone please post an example of using vertical region on a x-y graph. Tanks

2 years ago | 0 answers | 0

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answers

Question


How to plot x = 1 without any y variable
Ho do i plot a vertical line on a x y graph (x =1) without using the y variable

2 years ago | 1 answer | 0

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answer

Question


fminsearch for a function f(x,y) = x^4 -3xy+2y^2
can someone please explain what hapens when i usw fminsearch with a starting value of (0,0)

2 years ago | 4 answers | 0

4

answers

Question


How do i use fminsearch to find the minimum or maximum of a function . x.^4-3.*x.*y+2.*y.^2
I trying to use fmin search for a function of 2 variable

2 years ago | 2 answers | 0

2

answers