List of mathematical symbols

The following mathematical symbols are used differently from Wikipedia:

Symbol	Usage	Interpretation	Article	LaTeX	HTML	Unicode
[math]\displaystyle{ \widehat{} }[/math]	[math]\displaystyle{ \hat{a} }[/math]	Reciprocal of [math]\displaystyle{ a }[/math]: [math]\displaystyle{ 1/a }[/math] resp. [math]\displaystyle{ a^{-1} }[/math] for [math]\displaystyle{ a \ne 0 }[/math] (read as "hat")		\widehat{}		U+0302
[math]\displaystyle{ \acute{} }[/math]	[math]\displaystyle{ \acute{a} }[/math]	Increment of [math]\displaystyle{ a }[/math]: [math]\displaystyle{ a - 1 }[/math] (read as "dec")		\acute{}		U+00B4
[math]\displaystyle{ \grave{} }[/math]	[math]\displaystyle{ \grave{a} }[/math]	Decrement of [math]\displaystyle{ a }[/math]: [math]\displaystyle{ a + 1 }[/math] (read as "inc")		\grave{}		U+0060
[math]\displaystyle{ \nu }[/math]	[math]\displaystyle{ {}^{\nu} A }[/math]	greatest        finite number: intersection of the complex or real set [math]\displaystyle{ A }[/math] for [math]\displaystyle{ {}^{\nu}\mathbb{C} := [-\nu, \; \nu] + i[-\nu, \nu] }[/math]		\nu	ν	U+03BD
[math]\displaystyle{ \omega }[/math]	[math]\displaystyle{ {}^{\omega} A }[/math]	greatest mid-finite number: intersection of the complex or real set [math]\displaystyle{ A }[/math] for [math]\displaystyle{ {}^{\omega}\mathbb{C} := [-\omega, \omega] + i[-\omega, \omega] }[/math]		\omega	ω	U+03C9
[math]\displaystyle{ \varsigma }[/math]	[math]\displaystyle{ \varsigma = \max \mathbb{R} }[/math]	greatest real number		\varsigma	ς	U+03C2
d0	d0 [math]\displaystyle{ = \min \mathbb{R}_{\gt 0} }[/math]	smallest positive real number		d0	d0
[math]\displaystyle{ {}_b }[/math]	[math]\displaystyle{ {}_b a = \log_b a }[/math]	Logarithm to base [math]\displaystyle{ b }[/math] for [math]\displaystyle{ a \in \mathbb{C} \setminus \mathbb{R}_{\le 0} }[/math] (read as "b in a")		{}_b
[math]\displaystyle{ {}_1 }[/math]	[math]\displaystyle{ {}_1 x = x/||x|| }[/math]	Unit vector to [math]\displaystyle{ x \ne 0 }[/math]		{}_1
[math]\displaystyle{ \iota }[/math]	[math]\displaystyle{ \iota = \pi/2 }[/math]	Quarter of the circumference that the unit circle has		\iota	ι	U+03B9
[math]\displaystyle{ \tau }[/math]	[math]\displaystyle{ \tau = 2\pi }[/math]	Circumference that the unit circle has		\tau	τ	U+03C4
[math]\displaystyle{ \infty }[/math]	[math]\displaystyle{ \infty \gg \varsigma^2 }[/math]	Replacing [math]\displaystyle{ \pm0 }[/math] by [math]\displaystyle{ \pm\hat{\infty} }[/math]	Infinity	\infty	∞	U+221E
[math]\displaystyle{ \mathbb M }[/math]	[math]\displaystyle{ {\mathbb{M}}_{\mathbb{R}} = {}^{\omega}{\mathbb{R}} \setminus {}^{\nu}{\mathbb{R}} }[/math]	mid-finite numbers: [math]\displaystyle{ {\mathbb{M}}_{\mathbb{C}} := {\mathbb{M}}_{\mathbb{R}} + i{\mathbb{M}}_{\mathbb{R}} }[/math]		\mathbb{M}	𝕄	U+1D544
[math]\displaystyle{ {}^{\dot{}} }[/math]	[math]\displaystyle{ \dot{A} }[/math]	point-symmetric set [math]\displaystyle{ A }[/math]		\dot	˙	U+02D9
[math]\displaystyle{ {}^{\ll} }[/math]	[math]\displaystyle{ A^{\ll} }[/math]	Set [math]\displaystyle{ A }[/math] without boundary [math]\displaystyle{ \partial A }[/math] given by min [math]\displaystyle{ \{d(x, y) : x \in A°, y \in A^{\prime}\} = \hat{\nu} }[/math]		{}^{\ll}	≪	U+226A
[math]\displaystyle{ ' }[/math]	[math]\displaystyle{ A' }[/math]	Complement of the set [math]\displaystyle{ A }[/math]	Complement (set theory)	'		U+0027
[math]\displaystyle{ \curvearrowleft }[/math]	[math]\displaystyle{ \curvearrowleft {a} }[/math]	Predecessor of [math]\displaystyle{ a }[/math] (read as "pre")		\curvearrowleft		U+21B6
[math]\displaystyle{ \curvearrowright }[/math]	[math]\displaystyle{ \curvearrowright {a} }[/math]	Successor of [math]\displaystyle{ a }[/math] (read as "post")		\curvearrowright		U+21B7
[math]\displaystyle{ \Box }[/math]		End of proof		\Box		U+25A1
[math]\displaystyle{ \triangle }[/math]		End of definition		\triangle	Δ	U+2206

See also

• List of mathematical symbols