DiffInputFunction

is an option for Diff and related functions that specifies how the input expressions should be preprocessed.

Details

Diff[a,b,DiffInputFunctionfunc] is equivalent to Diff[func[a],func[b]].
The default setting DiffInputFunctionIdentity will attempt to diff the original expressions.
In addition to any arbitrary function, DiffInputFunction can take the following special settings:

	"InputForm"	equivalent to ToString[#,InputForm]&
	"StandardForm"	equivalent to ExpressionCell[#]&
	"TraditionalForm"	equivalent to ExpressionCell[TraditionalForm[#]]&

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Compare the input form strings of two arbitrary expressions:

Compare the StandardForm rendering of two expressions:

Compare two lists, ignoring order and repetitions:

Compare two strings as if they were lists of characters:

Compare strings returned by GenomeData:

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