Y may be any numeric array. R is numeric and is the negative value of Y. For complex numbers both the real and imaginary parts are negated.

Example

      -4 2 0 ¯3 ¯5
¯4 ¯2 0 3 5
 
      -1j2 ¯2J3 4J¯5
¯1J¯2 2J¯3 ¯4J5