Mathematica Plotting Delta Function

[rynlee]

Hi All,

I'm trying to plot some DiscreteDelta functions in mathematica but unfortunately since the points are singular nothing shows up in the plot.

Usually when this comes up I replace the delta functions with very narrow gaussians, graphically it looks even nicer (I'm plotting absorption spectra). This time, however, my delta functions are coming from the Fourier transform of Exp[it] i.e. complex oscillations, so mathematica is generating the delta functions (and so I can't replace them manually).

Does anyone have any tricks for getting mathematica to plot delta functions visibly? I tried Fill, no dice.

Thanks for any advice,
rynlee

 

[Valkarie]

You can try using PlotMarkers. This will allow you to set the size and shape of the markers that appear on the plot. You can also set the color for better visibility. Here's an example: data = Table[{i, DiscreteDelta[i - 2]}, {i, -4, 4, 0.2}];ListPlot[data, PlotMarkers -> {Graphics[{EdgeForm[Black], Yellow, Disk[{0, 0}, 0.1]}], 0.03}]