以 o 开头的数学词汇 | 玄数

2012-10-07
oblique   倾斜

  • Sloping or joining something at an angle that is not a right angle.
  • Neither perpendicular nor parallel to another line or plane.

oblique

oblong   长方形的,矩形的;椭圆形的
Having the shape of or resembling a rectangle or ellipse.

obtuse angle   钝角
An angle greater than 90° and less than 180°.
obtuse angle

obtuse triangle   钝角三角形
A triangle with one obtuse angle.
obtuse triangle

octagon   八边形
A polygon with eight sides and eight angles.
octagon

octahedron   八面体
A polyhedron with eight faces.
octahedron

odd   奇数的

  • Not divisible by two.
  • Changing sign but not absolute value when the sign of the independent variable is changed, as in y = x3.

odd number   奇数
Designating an integer not divisible by two, such as 1, 3, and 5.