Class: Numeric

Inherits:
Object
  • Object
show all
Defined in:
lib/fixedpnt.rb

Instance Method Summary collapse

Instance Method Details

#max_significant_bin_place ⇒ Object

Returns the max significant place of the binary representation (TODO: right wording?). Negative sign means that most significant binary place is right from the binary point.

EXAMPLES: 33.max_significant_bin_place -> 6 (33 = 0b100001) (1.0/33).max_significant_bin_place -> -6 (1/33 = 0b0.000001111100001)



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# File 'lib/fixedpnt.rb', line 580

def max_significant_bin_place(  )
  x = self.to_f.abs * 1.0000001 # 1.0000001 is for getting right values like 2**3 and 2**-3 TODO: Improve

  if x < 1
    x = 1.0 / x   
    sign = -1
  else
    sign = 1
  end

  x.to_i.to_s(2).size * sign
end