5.8.4  nth root: root

The root command finds roots of numbers.

• root takes two arguments:
  n and a, numbers.
• root(n,a) returns the nth root of a (i.e. a^1/n). If a<0, the nth root is a complex number with argument 2π/n.

Examples

• Input:
  root(3,2)
  Output:

  2

  1 3

• Input:
  root(3,2.0)
  Output:

  1.25992104989

• Input:
  root(3,sqrt(2))
  Output:

  2

  1 6