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× ,万国码 :U+00D7,名称为“乘号”,亦称作“叉号 ”或“交叉”。有以下的可能用法和意思:
数学:四则运算中的乘号 ,用作运算:
生物学:在基因图中表示两种物种 的杂交
中文:标点符号中的隐讳号 ,用以代替不便示众的文字。
日文:称作“ばつ ”(罰 )、“ばってん ”(罰點 )或“ぺけ ”,指不正确、错误等意思,与圈号 ○ :“まる ”(丸、圆)相对
语文 :用以代替有需要存在,但无需要明确表清的“参数”,常与“○”、“□”和“△”共用。例如:故事情节中的学校黑板或日记上的日期:○○年△△月□□日(星期×)
语文作业作文题目或例句中的名词:《××公司会议纪录》、××区××镇××村…… 跨界作品 ,在流行文化用以表示两种原本不相干的、人物、概念、作品等的交集,即是时下所说的“Crossover”。
同人:表示人物间的恋爱关系和主被动状况。如“小丁×小娜”,就是小丁主动,小娜被动。
宗教:钉死圣安德烈 的十字架是X型的十字架,称作圣安德烈十字架 。 由于这个符号的输入不太方便,故此在日常沟通时一般用英文字母“x ”代之。在HTML 和XHTML 上,则可以输入实体参引 × 、× 或× 。
字符编码
其他变形
U+2297 ⊗ CIRCLED TIMES ,HTML:⊗
⊗
U+2715 ✕ MULTIPLICATION X ,HTML:✕
U+2716 ✖ HEAVY MULTIPLICATION X ,HTML:✖
U+2A09 ⨉ N-ARY TIMES OPERATOR ,HTML:⨉
U+2A2F ⨯ VECTOR OR CROSS PRODUCT ,HTML:⨯
U+2A30 ⨰ MULTIPLICATION SIGN WITH DOT ABOVE ,HTML:⨰
U+2A31 ⨱ MULTIPLICATION SIGN WITH UNDERBAR ,HTML:⨱
U+2A34 ⨴ MULTIPLICATION SIGN IN LEFT HALF CIRCLE ,HTML:⨴
U+2A35 ⨵ MULTIPLICATION SIGN IN RIGHT HALF CIRCLE ,HTML:⨵
U+2A36 ⨶ CIRCLED MULTIPLICATION SIGN WITH CIRCUMFLEX ACCENT ,HTML:⨶
U+2A37 ⨷ MULTIPLICATION SIGN IN DOUBLE CIRCLE ,HTML:⨷
U+2A3B ⨻ MULTIPLICATION SIGN IN TRIANGLE ,HTML:⨻
U+2AC1 ⫁ SUBSET WITH MULTIPLICATION SIGN BELOW ,HTML:⫁
U+2AC2 ⫂ SUPERSET WITH MULTIPLICATION SIGN BELOW ,HTML:⫂
参见
算术运算
加法 (+)
项
+
项
被 加 数
+
被 加 数
addend (broad sense)
+
addend (broad sense)
augend
+
addend (strict sense)
}
=
{\displaystyle \scriptstyle \left.{\begin{matrix}\scriptstyle {\text{项 ))\,+\,{\text{项))\\\scriptstyle {\text{被 加 数 ))\,+\,{\text{被 加 数))\\\scriptstyle {\text{addend (broad sense)))\,+\,{\text{addend (broad sense)))\\\scriptstyle {\text{augend))\,+\,{\text{addend (strict sense)))\end{matrix))\right\}\,=\,}
sum
{\displaystyle \scriptstyle {\text{sum))}
减法 (−)
项
−
项
minuend
−
subtrahend
}
=
{\displaystyle \scriptstyle \left.{\begin{matrix}\scriptstyle {\text{项 ))\,-\,{\text{项))\\\scriptstyle {\text{minuend))\,-\,{\text{subtrahend))\end{matrix))\right\}\,=\,}
difference
{\displaystyle \scriptstyle {\text{difference))}
乘法 (×)
factor
×
factor
multiplier
×
multiplicand
}
=
{\displaystyle \scriptstyle \left.{\begin{matrix}\scriptstyle {\text{factor))\,\times \,{\text{factor))\\\scriptstyle {\text{multiplier))\,\times \,{\text{multiplicand))\end{matrix))\right\}\,=\,}
product
{\displaystyle \scriptstyle {\text{product))}
除法 (÷)
dividend
divisor
numerator
denominator
}
=
{\displaystyle \scriptstyle \left.{\begin{matrix}\scriptstyle {\frac {\scriptstyle {\text{dividend))}{\scriptstyle {\text{divisor))))\\\scriptstyle {\text{ ))\\\scriptstyle {\frac {\scriptstyle {\text{numerator))}{\scriptstyle {\text{denominator))))\end{matrix))\right\}\,=\,}
fraction
quotient
ratio
{\displaystyle {\begin{matrix}\scriptstyle {\text{fraction))\\\scriptstyle {\text{quotient))\\\scriptstyle {\text{ratio))\end{matrix))}
幂 (^)
base
exponent
=
{\displaystyle \scriptstyle {\text{base))^{\text{exponent))\,=\,}
power
{\displaystyle \scriptstyle {\text{power))}
n 次方根 (√)
radicand
degree
=
{\displaystyle \scriptstyle {\sqrt[{\text{degree))]{\scriptstyle {\text{radicand))))\,=\,}
root
{\displaystyle \scriptstyle {\text{root))}
对数 (log)
log
base
(
anti-logarithm
)
=
{\displaystyle \scriptstyle \log _{\text{base))({\text{anti-logarithm)))\,=\,}
logarithm
{\displaystyle \scriptstyle {\text{logarithm))}
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