Suppose I output a figure of some function from Matlab, without adding the x-axis label and y-axis label. The figure is then saved as a PDF file.
Now I want to input this figure into LaTeX, and I want to
add the x-axis label and y-axis label;
add the name of the function in the figure, just near the line;
because by doing so, the fonts in the x/y-axis labels and in the figure are consistent with the main font used in the text.
Is there any method to do this?