Usage

This template evaluates its numeric parameter and returns its absolute value. If the parameter is empty or missing, it returns an empty string. The parameter may also be a numeric expression that will be evaluated before testing its sign.

Syntax:
{{Abs|value}}
Examples with a simple number:
{{Abs|100}} = |100|.
{{Abs|0.1}} = |0.1|.
{{Abs|0}} = |0|.
{{Abs|-0.1}} = |-0.1|.
{{Abs|-100}} = |-100|.
Examples where the parameter is evaluated:
{{Abs|01}} = |01|.
{{Abs|00}} = |00|.
{{Abs|0.}} = |0.|.
{{Abs|0.0}} = |0.0|.
{{Abs|-0}} = |-0|.
{{Abs|3-4}} = |3-4|.
{{Abs|-4*2}} = |-4*2|.
Examples with an empty (or missing) parameter:
{{Abs|}} = | · |.
{{Abs}} = | · |.