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Iroot

integer part of r-th root of an integer
Syntax 

Iroot(N:INT, R: INT):INT

Description
This function computes the R-th root of an integer. If the argument is not a perfect R-th power it returns the integer part of the root.

Example 
  Iroot(25, 2);
5
-------------------------------
  Iroot(99, 3);
4
-------------------------------
  Iroot(-1, 3);
-1
-------------------------------


See Also