this is code correct

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Aminata camara
Aminata camara 2021-3-19
评论： Walter Roberson 2023-10-17
Hello I wanted to know if my code is correct for this type of equation
z = f(x, y) for −2 ≤ x ≤ 2 and −2𝜋 ≤ y ≤ 2𝜋
where
f(x, y) = e−0.2x sin(2y)
THIS IS THE CODE I wrote
%Plot a function
f=@(x,y) (exp(-0.2.*x)).* sin(2.*y);
fimplicit(f,[-2 2 -2*pi 2*pi])

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回答（3 个）

Star Strider
Star Strider 2021-3-19
It appears to be correct, and the code runs without error.
  2 个评论
Aminata camara
Aminata camara 2021-3-19
Thank you so mcuh
Star Strider
Star Strider 2021-3-19
My pleasure.
Chnage it to:
fsurf(f,[-2 2 -2*pi 2*pi])
.

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Walter Roberson
Walter Roberson 2021-3-19
The assignment to f appears to be correct, and the plotting bounds appear to be correct. However, nothing in the problem statement says that you are solving for f(x,y) = 0, so you should not be using fimplicit(). You should use fsurf() instead.
  2 个评论
Aminata camara
Aminata camara 2021-3-19
thank you for the suggestion so then I just replace fimplicit by fsurf in the code?

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Maria Quennie
Maria Quennie 2023-10-17
plot function 0 ≤ 𝑥 ≤ 2𝜋 using sin2(x)
  1 个评论
Walter Roberson
Walter Roberson 2023-10-17
I do not understand how this solves the original question? Please expand on how making this plot would help the original poster?

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