Method on @infsup: ceil (X) ¶

Round each number in interval X towards +Inf.

Accuracy: The result is a tight enclosure.

ceil (infsup (2.5, 3.5))
  ⇒ ans = [3, 4]
ceil (infsup (-0.5, 5))
  ⇒ ans = [0, 5]

See also: @@infsup/floor, @@infsup/round, @@infsup/roundb, @@infsup/fix.

Package: interval