H. Tjahjana
(1), I. Pranoto
(2), H. Muhammad
(3), J. Naiborhu
(4)
(1)
Department of Mathematics, Institut Teknologi Bandung, Bandung 40132, Indonesia, Indonesia,
(2)
Department of Mathematics, Institut Teknologi Bandung, Bandung 40132, Indonesia, Indonesia,
(3)
Department of Aeronautics and Aerospace Engineering, Institut Teknologi Bandung,
Bandung 40132, Indonesia, Indonesia,
(4)
Department of Mathematics, Institut Teknologi Bandung, Bandung 40132, Indonesia., Indonesia