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Plot symbolic function and non symbolic functions on the same plot?

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Lewis 2022-3-19

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https://ww2.mathworks.cn/matlabcentral/answers/1675549-plot-symbolic-function-and-non-symbolic-functions-on-the-same-plot

回答： Sulaymon Eshkabilov 2022-3-20

Hi, I am trying to plot a symbolic function ( fplot(@(x) x) ) and on the same figure, plot lines between specific pairs of points on the graph. (i.e. A = (x1,y1); B = (x2,y2); plot(A,B) )

The trouble is that fplot is used for symbolic functions and plot is used for nomal points, so they don't go onto the same graph. Is there any way of solving this?

Thanks

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Torsten 2022-3-19

在 MATLAB Online 中打开

fplot(...)
hold on 
plot(...)

does not work ?

Lewis 2022-3-19

Oh it seems to be working now, I made a small error. Thanks

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Sulaymon Eshkabilov 2022-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/1675549-plot-symbolic-function-and-non-symbolic-functions-on-the-same-plot#answer_922094

在 MATLAB Online 中打开

Here is a simple example:

figure

fplot(@(x) sin(x), [-pi, pi])

hold on

x = linspace(-pi, pi, 25);

plot(x, sin(x), 'rd')

legend('fplot', 'plot', 'location', 'best')

grid on

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