$mul¶
Usage: $mul(x,y,*args)
Category: mathematical
Description:
Multiplies x by y. Can be used with an arbitrary number of arguments (i.e.:
$mul(x,y,z)
= (x * y) * z). If an argument is empty or not an integer,
the function will return an empty string.
Example:
The following statements will return the values indicated:
$mul(1,2) ==> "2"
$mul(1,2,3) ==> "6"
$mul(1,2,0) ==> "0"
$mul(1,-2,3) ==> "-6"
$mul(-1,2,-3) ==> "6"
$mul(1,2,) ==> ""
$mul(1,2,x) ==> ""
$mul(1,2.5) ==> ""