Method on @infsup: mag (X)

Get the magnitude of numbers in interval X, that is the maximum of absolute values for each element.

If X is empty, mag (X) is NaN.

Accuracy: The result is exact.

mag (infsup (-3, 2))
  ⇒ ans = 3

See also: @infsup/mig, @infsup/smig, @infsup/inf, @infsup/sup.

Package: interval