how to add a label to a specific point on a fplot

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Fiachra Heeney
Fiachra Heeney 2020-2-19
回答： Adam Danz 2020-2-19
I have the graph fplot(M_G) shown below.
how do I label the point where the y-axis = 0. The actual x-value at y = 0 is 0.5607 but i do not know how to label it

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Adam Danz
Adam Danz 2020-2-19
This command will add a text label with a leftward arrow pointing to the coordinates
text(0.5607, 0, '\leftarrow My Favorite Point'))
or maybe you want a cross hairs at that point
xline(0.5607)
yline(0)
or maybe a simple marker that is defined in the legend
hold on
plot(0.5607, 0, 'r*', 'displayName', 'My Favorite Point')
legend()

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