Numerical values are indexed in their base unit. They can also be searched for by specifying a desired unit as a search operator in square brackets [].^[21]

Values can be searched for in inch notation (e.g. 3 1/2 )

A fractional representation is evaluated as inches by default and a conversion to mm takes place automatically in the background so that mm values are also found.

1/2

1 1/2

38.1 mm and 1 1/2 inch are equivalent.

If you want to search for "mm" with a fraction, you have to add "mm" in square brackets.

Note Only if the unit is explicitly stated, searching is exclusively numerical, otherwise textual.

1/2 [mm]

When wanting to explicitly search for Inch you have to add "inch" in square brackets.

Note Only if the unit is explicitly stated, searching is exclusively numerical, otherwise textual.

0.5 [inch]

Also with inch, you can search "from-to".

1/2 - 3/4

1 1/2 - 1 3/4

Also when using from-to statements the unit can be added behind.

1 1/2 [inch] - 1.75 [inch]

If there is no explicit statement, the last token defines the unit.

The following search leads to Inch results, because the fraction is automatically interpreted as Inch.

1.5 - 1 3/4

Inch values could also be part of order numbers, for example.