How do I set all output to be printed/shown in FullForm. Setting the FormatType of the stream as in e.g. https://mathematica.stackexchange.com/a/164360/45020 does not work because FullForm does not seem to be a valid FormatType ("FormatType::ftype: Value of option FormatType -> FullForm is not valid.").
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1 Answer
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$Post = FullForm
Example
2 + 2 Sin[x + 7]
Plus[2,Times[2,Sin[Plus[7,x]]]]
To reset:
$Post =.
$Post = FullForm? $\endgroup$$PrePrint. For example,keep = {Graphics, Graphics3D, MeshRegion, BoundaryMeshRegion, Image, Image3D}; $PrePrint = If[MemberQ[keep, Head@#], #, FullForm@#] &$\endgroup$