on *:TEXT:!calc*:#: { 
  if ($3 == x) /notice $nick 7 $2- =7 $calc($2 * $4 * $5 * $6) 
  if ($3 == *) /notice $nick 7 $2- =7 $calc($2 * $4 * $5 * $6) 
  if ($3 == +) /notice $nick 7 $2- =7 $calc($2 + $4 + $5 + $6)
  if ($3 == -) /notice $nick 7 $2- =7 $calc($2 - $4 - $5 - $6) 
  if ($3 == /) /notice $nick 7 $2- =7 $calc($2 / $4 / $5 / $6) 
  if ($3 == $null) { /notice $nick Please use the calc buy typing: 
  /notice $nick calc <number> <+,*,/,-,x> <number> }
}