span -- construct smallest interval

• Usage:

  I = span(L)

  I = span(L,Precision => prec)

• Inputs:
  • L, a list or a sequence, containing Number objects
• Optional inputs:
  • Precision (missing documentation) => an integer, default value -1, specifies the desired precision of the output, a value of -1 uses the minimum precision of the inputs.
• Outputs:
  • I, a real interval or a complex interval,

i1 : span(1,4,interval(2,5),interval(-3))

o1 = [-3,5]

o1 : RRi (of precision 53)

i2 : span(1 + 3*ii, pi, 4 + ii)

o2 = [1,4]+[0,3]*ii

o2 : CCi (of precision 53)