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浮點數 (IEEE754 (元素 (fraction (premise (leading 1 (hidden bit,…

- - - - 表現precision
      - premise
        
        leading 1
        
        hidden bit
        
        generalization
        
        存1.F
    - - 表現range
    - - fixed bits
        
        range&precision 選擇
    - - expenent_fracrion
        
        zero
        
        0 :check:0 :check:
        
        denormalization
        
        0 :check: 0 :forbidden:
        
        0.F * 2^(-126)
        
        呈現接近該值
        
        浮點數
        
        1~254 :check:Anything :check:
        
        1.F
        
        infinity
        
        255 :check:0 :check:
        
        NaN
        
        255:check: 0 :forbidden:
      - sign bit
        
        最後考慮
  - - - 準度損失
    - - 3bits
        
        guard bit
        
        round bit
        
        sticky bit
        
        準度損失發生
        
        非0丟棄
        
        真假halfway
    - - round to nearest even
        
        premise
        
        halfway
      - 進位
        
        往大的
      - 退位
        
        往小的
      - 0
        
        丟棄
- - - - normalized form