The following example shows Greek letters and mathematical symbols in the x and y axis titles.

; Define the data.
t = 0.1*FINDGEN(200)
y = SMOOTH(RANDOMU(seed,200), 5)
 
; Draw the plot
p = PLOT(t,y,'b', $
   XTITLE='Gap Distance ($\AA$)', $
   YTITLE='Volts ($\mu$V)', $
   FONT_SIZE = 20, $
   DIMENSION=[640,512], $
   SYMBOL = 'circle', $
   SYM_FILLED = 1, $
   SYM_FILL_COLOR = 'gold')
 

For complete information on using the syntax, see TEXT.

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