Confirmed, although not a bug in Octave itself but in the mismatch between the packages. Here is a full Octave transcript to reproduce:
octave:1> n = 6; octave:2> rp = 3; octave:3> rs = 30; octave:4> wp = .5; octave:5> [b,a] = ellip (n, rp, rs, wp); error: `fminbnd' undefined near line 37 column 4 error: called from: error: /usr/share/octave/packages/3.2/signal-1.0.11/__ellip_ws.m at line 37, column 3 error: /usr/share/octave/packages/3.2/signal-1.0.11/ncauer.m at line 40, column 3 error: /usr/share/octave/packages/3.2/signal-1.0.11/ellip.m at line 110, column 21 ** Package changed: octave (Ubuntu) => octave-signal (Ubuntu) ** Changed in: octave-signal (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087725 Title: fminbnd.m missing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/octave-signal/+bug/1087725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs