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Y may be any numeric array.

Where an element of Y is real, the corresponding element of R is an integer whose value indicates whether the value is negative (¯1), zero (0) or positive (1).

Where an element of Y is complex, the corresponding element of R is a number with the same phase but with magnitude (absolute value) 1. It is equivalent to Y÷|Y. 

Examples

      ׯ15.3 0 101
¯1 0 1
 
      ×3j4 4j5
0.6J0.8 0.6246950476J0.7808688094
 
      {⍵÷|⍵}3j4 4j5
0.6J0.8 0.6246950476J0.7808688094
 
      |×3j4 4j5
1 1