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Alvaro Mª Zumalacarregui Delgado


Last seen: 3 years 前 |  自 2021 起处于活动状态

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统计学

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solve equation system with dsolve
I am trying to solve a differential equation system with the command dsolve, but the answer is empty sym I wrote this syms x y...

3 years 前 | 0 个回答 | 0

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I can't hold a lot graphs in an axes
I don´t know why I can't se the 4 functions in the axe this is the code: P = app.P.Value; Q = app.Q.Value; ...

3 years 前 | 1 个回答 | 0

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specific solution in a vector field of a equation system
I create a vector field of a equation system, also I want to represent the spefic solution of the system in that field but I thi...

3 years 前 | 1 个回答 | 0

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explanation of vector field
I have gotten a vector field of a equation system but I don't know how interpret i, could anyone explain me please? this the sy...

3 years 前 | 0 个回答 | 0

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Create a vector field
I am trying to create a vector field of a equation system, but I think that I have the slope wrong: this is the system: dx/d...

3 years 前 | 1 个回答 | 0

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runge-Kutta problem command ode45
I try to solve an equation with the command ode45 b ut I have an error, this is my code: tspan = [0 5]; y0 = 100; Q = 30, b ...

3 years 前 | 2 个回答 | 0

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represent a function in Matlab
I don't understand the graph of this exponential function, it is look like a two line instead of an exponential, this is the cod...

3 years 前 | 1 个回答 | 0

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solve an equation system with matlab
I trying to solve a system but when I run matlab send me an error, this is the code syms a b xo = 7000; yo = 8000; x = 6600...

3 years 前 | 0 个回答 | 0

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runge-kutta ode45
I want to solve a two EDO system with the runge kutta method, I wrote this code but i don't get anything, someone know why this ...

3 years 前 | 2 个回答 | 0

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提问


'Value' must be a double scalar.
% the program send me that message when I run the interface value = app.tasaX.Value; % this is a list box with nouns which have...

4 years 前 | 0 个回答 | 0

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vector fields in Matlab
I am trying to create a vector field of a diferential equation system, I know what is the real vector field, but with my code I ...

4 years 前 | 1 个回答 | 0

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Array indices must be positive integers or logical values.
I am trying to represent to functions in matlab app designer but when I run the interface and click the buttom the app send me t...

4 years 前 | 0 个回答 | 0

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represent exponential function in app designer
How can I put the initial condition to the functions y1 and y2? Because the interface doesn't draw in the axes the function that...

4 years 前 | 1 个回答 | 0

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提问


Undefined function 'ln' for input arguments of type 'double'.
I am trying to represent a function and before my code has an operation with a Ln, and when I run the app and click the button g...

4 years 前 | 1 个回答 | 0

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已回答
Error using quiver The size of Y must match the size of U or the number of rows of U.
I have the same error but with other code, I only change the "m" value and Matlab sends me the same error: P = 50; ...

4 years 前 | 0

提问


Error using quiver The size of Y must match the size of U or the number of rows of U.
i am trying to create a vector field with app designer with the function quiver but i have an error 'Error using quiver The si...

4 years 前 | 2 个回答 | 0

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提问


Create a Vector fields
I trying to create a vector field of a diferentials equation system, I write a code in matlab app designer but I not sure how to...

4 years 前 | 1 个回答 | 0

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提问


I can't put two functions together with the command hold
I am trying to put in the same axes two functions with the command hold but i don't accomplish it, this is my code function Ca...

4 years 前 | 1 个回答 | 0

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how to solve ?Error using/Matrix dimensions must agree.'?
I am working with Matlab app designer, while i was trying to run the interface the program send this message, what is the proble...

4 years 前 | 1 个回答 | 0

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