code:

---

Function udfIntMax($vArray)
	Dim $iSubscript
	$udfIntMax=Val($vArray[0])
	For $iSubscript=1 To UBound($vArray)
		If Val($vArray[$iSubscript]) > $udfIntMax $udfIntMax=Val($vArray[$iSubscript]) EndIf
	Next
	Return
EndFunction

---

Just call it like this:

code:

---

$iNumber=99
$iMaxNo=udfIntMax(split("9 6 $iNumber 23")) ?
"Largest number is " $iMaxNo ?

---

You can do the min() thing by reversing the ">" test.