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TableForm[BooleanTable[{a0,a1,a2,a3,f3},{a0,a1,a2,a3}],TableHeadings->{None,{Subscript[a, 0],Subscript[a, 1],Subscript[a, 2],Subscript[a, 3],Subscript[b, 3]}},TableAlignments->Center]

I used these code to generate a truth table, but how to convert the output to an image? I have tried Export["f3.png",mytable],but it is not the same as the out[84], so how to export an image like the same as original output? enter image description here

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    $\begingroup$ Export["f3.png", Rasterize@mytable]? $\endgroup$ – kglr Dec 3 '18 at 7:49
  • $\begingroup$ Please show us the complete code text. $\endgroup$ – xzczd Dec 3 '18 at 7:50
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TableForm[BooleanTable[{a0, a1, a2, a3, f3}, {a0, a1, a2, a3}], 
  TableHeadings -> {None, {Subscript[a, 0], Subscript[a, 1], 
     Subscript[a, 2], Subscript[a, 3], Subscript[b, 3]}}, 
  TableAlignments -> Center] // Rasterize
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Try the following. First add the row of titles to your table:

    tab = Join[{{Subscript[a, 0], Subscript[a, 1], Subscript[a, 2], 
    Subscript[a, 3], Subscript[b, 3]}}, 
  BooleanTable[{a0, a1, a2, a3, f3}, {a0, a1, a2, a3}]]

Then let us make an image out of it:

    Rasterize[GraphicsGrid[tab, ItemAspectRatio -> 0.5, 
Dividers -> {False, 2 -> True}], RasterSize -> 800, ImageSize -> 400]

Here I show a part of it:

enter image description here

You can play with the parameters: ItemAspectRatio, RasterSize and ImageSize to achieve the desired size and general view of the table.

You can, further, select the result, fo to Menu/File/SaveSelectionAs and save it in one of the graphics formats. Alternatively, you can export it as a graphics file.

Have fun!

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  • $\begingroup$ Almost done, but the column in b3 should be the result of b3, you still did well, thank you. $\endgroup$ – 余星佑 Dec 5 '18 at 11:02
  • $\begingroup$ I give an idea, and all the rest is up to you. $\endgroup$ – Alexei Boulbitch Dec 5 '18 at 11:39

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