Write mathematical symbols on my curve

Hi,I need to write mathematical symbols on my curve,I prefer to write immediately on the graph without using any commands in my code,is it possible?

[John D'Errico]

How will you do anything without putting any commands in your code?

Answer 1

[Adam]

The 'Insert' menu of a figure allows you to insert various things (including a text box) on a plot manually rather than programmatically if that is what you mean.

In R2015b (I don't know about earlier versions) a Tex interpreter is the default so that symbols can be used with whatever their Tex representation is.

[yousef Yousef]

Hi,it does not work. Thanks