How do I draw a horizontal line at a fixed height on the y axis and print the coordinates of the points I intercept?

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Agnese Chini
Agnese Chini on 11 Oct 2021
Answered: KSSV on 11 Oct 2021
Hi, I have a matlab plot with 6 curves (or functions).
My y-axis ranges from 0 to 255.
My x-axis ranges from -20 to 20.
How do I "draw" a horizontal line (for example y = 80) and the points it intercepts, print the coordinates and which function they refer to. The functions are differentiated in the legend by colors and names.

Answers (1)

KSSV
KSSV on 11 Oct 2021
th = linspace(0,2*pi) ;
x = sin(th) ;
plot(th,x)
hold on
line([th(1) th(end)],[0.4 0.4])

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