hi can anybody tell me how i can input numbers if ibase > 10? (%i1) ibase:16; (%o1) 16 (%i2) 1A; Incorrect syntax: A is not an infix operator 1A; ^ (%i2) thx guenter -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail