I am using a figure in my paper, wherein one of the components of the figure, I need to refer to a method that I have described in a section with an equation.
I want to use a small footnote reference in the figure, in the footnote, I will describe that I have explained the method in section X with the equation Y.
What should be the standard way to do it? Using square brackets (ex. ) can be confused with the reference section, so how to place it so it's not confusing.