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求闻百科，共笔求闻

加法 (+)
	$\scriptstyle\left.\begin{matrix}\scriptstyle\text{项 }\,+\,\text{项}\\\scriptstyle\text{被加数 }\,+\,\text{被加数}\\\scriptstyle\text{addend (broad sense)}\,+\,\text{addend (broad sense)}\\\scriptstyle\text{augend}\,+\,\text{addend (strict sense)}\end{matrix}\right\}\,=\,$	$\scriptstyle\text{sum}$
减法 (−)
	$\scriptstyle\left.\begin{matrix}\scriptstyle\text{项 }\,-\,\text{项}\\\scriptstyle\text{minuend}\,-\,\text{subtrahend}\end{matrix}\right\}\,=\,$	$\scriptstyle\text{difference}$
乘法 (×)
	$\scriptstyle\left.\begin{matrix}\scriptstyle\text{factor}\,\times\,\text{factor}\\\scriptstyle\text{multiplier}\,\times\,\text{multiplicand}\end{matrix}\right\}\,=\,$	$\scriptstyle\text{product}$
除法 (÷)
	$\scriptstyle\left.\begin{matrix}\scriptstyle\frac{\scriptstyle\text{dividend}}{\scriptstyle\text{divisor}}\\\scriptstyle\text{ }\\\scriptstyle\frac{\scriptstyle\text{numerator}}{\scriptstyle\text{denominator}}\end{matrix}\right\}\,=\,$	$\begin{matrix}\scriptstyle\text{fraction}\\\scriptstyle\text{quotient}\\\scriptstyle\text{ratio}\end{matrix}$
幂
	$\scriptstyle\text{base}^\text{exponent}\,=\,$	$\scriptstyle\text{power}$
n 次方根 (√)
	$\scriptstyle\sqrt[\text{degree}]{\scriptstyle\text{radicand}}\,=\,$	$\scriptstyle\text{root}$
对数 (log)
	$\scriptstyle\log_\text{base}(\text{anti-logarithm})\,=\,$	$\scriptstyle\text{logarithm}$

×，万国码：U+00D7，名称为“乘号”，亦称作“叉号”或“交叉”。

字符编码

字符编码	Unicode	ISO 8859-1，2，3，4，9，13，15	ISO 8859-8
×	U+00D7	D7	AA

其他变形

U+2297 ⊗ CIRCLED TIMES ，HTML：⊗ &otimes;
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

取自“https://www.qiuwenbaike.cn/index.php?title=×&oldid=3785675”