average
calculated by adding a set of numbers together and dividing this amount by the total number of amounts in that set
数学平均数
[形容词]
operation
(mathematics) a process according to which a calculation is done, such as adding, dividing, etc.
运算
[名词]
sign
a symbol or letters used in math, music, or other subjects to show an instruction, idea, etc.
数学符号
[名词]
symbol
a mark or set of characters that shows a certain meaning, particularly in fields like chemistry, music, or science
符号
[名词]
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