清空筛选条件
清空筛选条件

Encounter an error while using fimplicit?

3 次查看（过去 30 天）
Wajahat
Wajahat 2020-4-16
评论： Star Strider 2020-4-16
How to plot the following equation on matlab by using fimplicit?
(x-x0).*conj((x-x0))+(y-y0).^2=r^2
close all;
r=1./2;
x0=0;
y0=1./2;
syms x y
fimplicit((x-x0).*conj((x-x0))+(y-y0).^2-r^2)
axis equal
Matlab shows
'Undefined function or variable 'fimplicit'.'

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2020-4-16
The fimplicit function was introduced in R2016b.
Use the contour function instead:
r=1./2;
x0=0;
y0=1./2;
f = @(x,y) (x-x0).*conj((x-x0))+(y-y0).^2-r^2;
xv = linspace(x0-r, x0+r, 25);
yv = linspace(y0-r, y0+r, 25);
[X,Y] = ndgrid(xv,yv);
figure
contour(X,Y,f(X,Y), [0 0])
grid
axis equal
.
  6 个评论
显示 4更早的评论
Wajahat
Wajahat 2020-4-16
I got this
which is not same as the previous attached hyperboic image
Star Strider
Star Strider 2020-4-16
Adjust the limits of ‘xv’ (and perhaps also ‘yv’) to match the figure you want.
For example:
xv = linspace(-1, 1, 25);
You may need to change the parameters in the ‘f’ function to exactly reproduce the figure you posted.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by