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#expr

Help:Extension:ParserFunctions - MediaWiki #expr

We can build a cent function:

* {{#expr: ln (9/8) / ln 2 * 1200}}
* {{#expr: ln (3/2) / ln 2 * 1200}}
* {{#expr: ln (5/4) / ln 2 * 1200}}

203.91000173077
701.95500086539
386.31371386483

but for formatting rounded results, it would be good to use Extension:NumberFormat - MediaWiki

... which is currently not available (it's displaying just the code I typed):

12345678.055555

The Problem that can be solved by {{#number_format: [...] is that {{#expr: (ln (3/2) / ln 2 * 1200) round 5}} gives us 701.955 instead of 701.95500 if 5 decimals are requested, as indicated by the 5 after round.