compiler doesn't accept first argument to be omitted. for example =ISPMT(;1;L4;L5) =BITXOR(,25) You already get a formula correction message box when entering such.
Eike Rathke committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=633413a37ee7442cd899db1269fd3ef404efe58a Resolves: tdf#100768 accept empty missing argument also for first parameter It will be available in 5.3.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.