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→#expr: added source |
made the actual problem more obvious |
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| Line 17: | Line 17: | ||
but for formatting rounded results, it would be good to use [https://www.mediawiki.org/wiki/Extension:NumberFormat Extension:NumberFormat - MediaWiki] | but for formatting rounded results, it would be good to use [https://www.mediawiki.org/wiki/Extension:NumberFormat Extension:NumberFormat - MediaWiki] | ||
... which is currently not available: | ... which is currently not available (it's displaying just the code I typed): | ||
{{#number_format:12 345 678,055555|_|.||,}} | {{#number_format:12 345 678,055555|_|.||,}} | ||
'''The Problem''' that can be solved by <code><nowiki>{{#number_format: [...]</nowiki></code> is that | |||
<code><nowiki> {{#expr: (ln (3/2) / ln 2 * 1200) round 5}}</nowiki></code> gives us <tt>{{#expr: (ln (3/2) / ln 2 * 1200) round 5}}</tt> instead of <tt>701.95500</tt> if 5 decimals are requested, as indicated by the <tt>5</tt> after <tt>round</tt>. | |||
Revision as of 17:48, 24 October 2018
This is the sandbox. To experiment with editing, click on the [Edit] tab.
#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.