SpanCharacterRounding

This function has not been fully integrated into the long-term Wolfram Language, and is subject to change.

is an option for selections that specifies the method used for rounding a spanning character when its size is to be adjusted.

Details

The size of any spanning character can only be varied in discrete steps determined by the size of the small elements it is built from. If you set the size of any spanning character to a value that would require a non-integer number of elements, then the actual size is determined by rounding off to the nearest integer number. SpanCharacterRounding determines the method used to perform this rounding. Possible settings are Floor, Ceiling, and Round.
With the default setting SpanCharacterRounding->Automatic, an appropriate rounding method is used for each spanning character. For example, radical signs are always rounded to the next highest value (that is, SpanCharacterRounding->Ceiling) to ensure that they are always larger than the expression they wrap around.

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