Kamus Matematika : O

OBELUS = tanda bagi
OBJECT = obyek
OBLIQUE ANGLE = sudut taksiku-siku
OBTUSE ANGLE = sudut tumpul
OBTUSE TRIANGLE = segitiga tumpul
OCTACONTAGON = segi-80 beraturan
OCTADECAGON = segi-18 beraturan
OCTAGON = segi-8 beraturan
OCTAGRAM = bintang depalapan
OCTAHEDRON = bidang delapan
OCTAL = bilangan basis-8
OCTANT = ruang koordinat ruang
ODD FUNCTION = fungsi ganjil
ODD NUMBER = bilangan ganjil
OGIVE = ogif
ONE = satu
ONE-TO-ONE = satu-satu (injektif)
ONE-WAY FUNCTION = fungsi searah
ONTO = pada (surjektif)
OPEN DISK = daerah lingkaran terbuka
OPEN INTERVAL = interval terbuka
OPEN SET = himpunan terbuka
OPERAND = yang dioperasikan
OPERATIONS RESEARCH = ridet operasi
OPERATOR = operator (pengoperasi)
OPTIMIZATION THEORY = teori optimisasi
OR = atau
ORDER = derajat (sukubanyak)
ORDERED GEOMETRY = geometri terurut
ORDERED PAIR = pasangan terurut
ORDERING = urutan
ORDINAL NUMBER = bilangan urutan
ORDINARY DIFFERENTIAL EQUATION = persamaan differensial biasa
ORDINATE = ordinat
ORIGAMI = ilmu melipat kertas
ORIGIN = titik asal
OSCILLATION = osilasi
OUTER PRODUCT = perkalian luar