Root
  

Returns the radical of the number with given index.

syntax
Root(number [; index])

info
- if lack of index then function calculates square root,
- if number is negative then index must be odd.

example
Root(9;2) = 3
Root(9) = 3
Root(-8;3) = -2 because (-2*-2*-2) = -8
Root(-8;-3) = -0,5 = -8^(-1/3)
Root(8;-3) = 0,5