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MMA 11.3. I can add GridLines to a Plot (GridLines -> Automatic), but then when I try to add Ticks to the same plot using Ticks -> {Range[0, 2 pi, pi/2}], the Grid lines go away. Here are screeshots of 2 successive input cells. ![enter image...
Here is what I get when I search the documentation ref/menuitem/CDFExport ![enter image description here][1] [1]: