Create a ring of successive halves

halves  start (number), num_halves (int)

Create a ring containing the results of successive halving of the start value. If num_halves is negative, will return a ring of doubles.

Introduced in v2.10

Examples

# Example 1 

(halves 60, 2) 





#=> (ring 60, 30)

# Example 2 

(halves 120, 3)





#=> (ring 120, 60, 30)

# Example 3 

(halves 120, 5)





#=> (ring 120, 60, 30, 15, 7.5)

# Example 4 

(halves 30, -5)





#=> (ring 30, 60, 120, 240, 480)