Template:Expr
Revision as of 07:57, 11 November 2012 by imported>Unbuttered Parsnip (I don't know why the example is not in black - it makes the colon very hard to spot)
To calculate an expression use {{#expr: 3*4^2}} not "expr".
The Template:Expr explains to use the wp:Parser function "#expr" to calculate an expression, rather than using "{{expr}}" which triggers this template.
For more details, see: Help:expr (Help:Calculation).