unbounded interval造句

• These concepts are undefined for empty or unbounded intervals.
• Several methods exist for approximate integration over unbounded intervals.
• The same is not true on unbounded intervals ( Hamburger moment problem ).
• Omit either for an unbounded interval ( since the first year or until the second year ).
• The size of unbounded intervals is usually defined as, and the size of the empty interval may be defined as or left undefined.
• It can however be extended to unbounded intervals by taking limits, so long as this doesn't yield an answer such as.
• These definitions are usually extended to include the empty set and to the ( left-or right-) unbounded intervals, so that the closed intervals coincide with closed sets in that topology.