Fix bug when cn is negative.
Fix bug when cn is negative.
tfar/relic,sruesch/relic,sruesch/relic,sruesch/relic,ace0/relic,tfar/relic,OlegHahm/relic,ace0/relic,ace0/relic,ace0/relic,OlegHahm/relic,ukscone/relic,ukscone/relic,tfar/relic,OlegHahm/relic,ukscone/relic