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Question
I will find an xy dataset satisfying an implicit equation.
(x^2 + y^2)^3 + (15*x + 3.3*y)*(x^2 + y^2)^2 + (62.5*x^2 + 20*x*y - 8.37*y^2)*(x^2 + y^2) - 17*x^3 + 11*x^2*y + 17*x*y^2 - 11*y^...
mer än ett år ago | 1 answer | 0
1
answerQuestion
How can I plot the pahase plane of a time dependent linear system?
I want to plot phase plane wtih arrows (like quiver) of the time dependet system above.
ungefär 2 år ago | 1 answer | 0
1
answerQuestion
How can I solve a general elliptic partial differential equation with Drichlet boundary conditions?
I have an equation with known functions f, g and h shown above. My BC is: Is there any pdetool solution or any numerical me...
ungefär 3 år ago | 1 answer | 0
1
answerQuestion
A 2D boundary value problem with superelliptic boundaries
I have 2 concentric supercircles with equations x^4+y^4=1 and x^4+y^4=16. Potentials at these surfaces are kept constant at V=...
ungefär 3 år ago | 0 answers | 0
0
answersQuestion
How can I find a doble sum series?
I want to compute the series. Parameters a, b, c and d are known constants.
ungefär 3 år ago | 1 answer | 0
1
answerQuestion
I want to draw dual phase portraits in a 4x4 linear differential equation system. My codes contain 4 variables as below (x1, x2, y1, y2).
p=0.1; q=15; x1dom = linspace(-p,p,q);x2dom = linspace(-p,p,q);y1dom = linspace(-p,p,q);y2dom = linspace(-p,p,q); [X1,X2,Y1,Y2...
mer än 3 år ago | 0 answers | 0
0
answersQuestion
I want to draw dual phase portraits in a 4x4 linear differential equation system. My codes contain 4 variables as below (x1, x2, y1, y2). For a given coefficients matrix, when
p=0.1; q=15; x1dom = linspace(-p,p,q);x2dom = linspace(-p,p,q);y1dom = linspace(-p,p,q);y2dom = linspace(-p,p,q); [X1,X2,Y1,Y2...
mer än 3 år ago | 1 answer | 0
