SI Units

$1m=c*frac{1}{299792458s}$

$1mL=1cm^{2}$

$1kg=1.000025L$ water

$1mol=6.022e23$ particles

$E=hv$

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): λν = c

c = speed of light 299792458 (m/s) E = energy of photon v = frequency h = Planck constant = 6.62606e−34 (J•s) or (m^2•kg)/s λ = wavelength J = joule e = charge = 1.60217e−19 (C) or (s•A) C = coulomb = k = boltzmann = 1.38065e−23 (J/K) or (m^2•kg•s^−2)/K K = kelvin NA = Avogadro# = 6.02214e23 (mol−1).

TeX Syntax (forcing PNG)	TeX Rendering	HTML Syntax	HTML Rendering
<math>\alpha</math>	$\alpha$	{{math|<VAR>&alpha;</VAR>}}	α
<math> f(x) = x^2\,</math>	$f(x)=x^{2}\,$	{{math|''f''(<var>x</var>) {{=}} <var>x</var><sup>2</sup>}}	f(x) = x2
<math>\sqrt{2}</math>	${\sqrt {2}}$	{{math|{{radical|2}}}}	√2
<math>\sqrt{1-e^2}</math>	${\sqrt {1-e^{2}}}$	{{math|{{radical|1 &minus; ''e''&sup2;}}}}	√1 − e²

$\operatorname {erfc} (x)={\frac {2}{\sqrt {\pi }}}\int _{x}^{\infty }e^{-t^{2}}\,dt={\frac {e^{-x^{2}}}{x{\sqrt {\pi }}}}\sum _{n=0}^{\infty }(-1)^{n}{\frac {(2n)!}{n!(2x)^{2n}}}$

 \operatorname{erfc}(x) =
 \frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =
 \frac{e^{-x^2}}{x\sqrt{\pi}}\sum_{n=0}^\infty (-1)^n \frac{(2n)!}{n!(2x)^{2n}}