Method on @infsup: abs (X)

Compute the absolute value of numbers.

Accuracy: The result is a tight enclosure.

abs (infsup (2.5, 3.5))
  ⇒ ans = [2.5, 3.5]
abs (infsup (-0.5, 5.5))
  ⇒ ans = [0, 5.5]

See also: @infsup/mag, @infsup/mig.

Package: interval