Something
public text v1 · immutableon $*:text:/^[!@.](calc|calculator)/Si:#:{
notice $nick 12 $2- = 4 $calc($2-)
$iif($left($1,1) == @, msg $chan, notice $nick)
}on $*:text:/^[!@.](calc|calculator)/Si:#:{
notice $nick 12 $2- = 4 $calc($2-)
$iif($left($1,1) == @, msg $chan, notice $nick)
}