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The Q notation is a way to specify the parameters of a binary fixed point number format. For example, in Q notation, the number format denoted by Q8.8 means that the fixed point numbers in this format have 8 bits for the integer part and 8 bits for the fraction part. A number of other notations have been used for the same purpose.

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  • The Q notation is a way to specify the parameters of a binary fixed point number format. For example, in Q notation, the number format denoted by Q8.8 means that the fixed point numbers in this format have 8 bits for the integer part and 8 bits for the fraction part. A number of other notations have been used for the same purpose. (en)
  • Q格式是二進制的定點數格式,其中會標示小數位元(也可能包括整數位元)的長度。例如Q15數表示分數部份有15個位元,而Q1.14數表示1個整數位元以及14個小數位元。 針對有號的定點數,有二種Q格式的表示方式。其中一種是將符號位元算在整數位元裡,但另外一種就不是。例如,16位元的有號整數(無小數位元)可以表示為Q16.0或Q15.0。因此,在用說明Q格式的有號定點數字時,可能也需要一併標示總位元數(在此處為16)。 Q格式是幾種廣為使用的定點数中的一種。定點数常用在不支援浮點運算器的硬體,或是用在需要固定解析度的應用。 (zh)
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  • May 2019 (en)
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  • The Q notation is a way to specify the parameters of a binary fixed point number format. For example, in Q notation, the number format denoted by Q8.8 means that the fixed point numbers in this format have 8 bits for the integer part and 8 bits for the fraction part. A number of other notations have been used for the same purpose. (en)
  • Q格式是二進制的定點數格式,其中會標示小數位元(也可能包括整數位元)的長度。例如Q15數表示分數部份有15個位元,而Q1.14數表示1個整數位元以及14個小數位元。 針對有號的定點數,有二種Q格式的表示方式。其中一種是將符號位元算在整數位元裡,但另外一種就不是。例如,16位元的有號整數(無小數位元)可以表示為Q16.0或Q15.0。因此,在用說明Q格式的有號定點數字時,可能也需要一併標示總位元數(在此處為16)。 Q格式是幾種廣為使用的定點数中的一種。定點数常用在不支援浮點運算器的硬體,或是用在需要固定解析度的應用。 (zh)
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  • Q (number format) (en)
  • Q格式 (zh)
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