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公式

公式科學上用符號去表達資訊嘅方法,常用嘅有兩種:數學公式同化學公式。

數學公式

[編輯]
球體體積可以用數學公式表達

數學公式,簡稱數學式,係用數學符號去表達兩個項關係嘅概念,譬如球體體積嘅數學公式係:

.

其中V係代表球體體積,r係球體半徑,左右兩邊嘅項用等號連接,代表兩邊等如

化學公式

[編輯]
異丁烷成份可以用化學公式表達

化學公式,簡稱化學式,係用化學符號去表達化合物嘅成份,譬如異丁烷嘅化學公式係:(CH3)3CH。

其中C係,H係

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公式
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