Difference between revisions of "User:Fingolfin/Sandbox"

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(Add a personal sandbox)
 
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<math>\sqrt{2}+\pi^{20+a_i} - \tfrac{23}{42}</math>
 
<math>\sqrt{2}+\pi^{20+a_i} - \tfrac{23}{42}</math>
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 +
 +
<math>\sum_{k=1}^n k = \frac{k(k+1)}{2}</math>
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 +
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<math>
 +
\operatorname{erfc}(x) =
 +
\frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =
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\frac{e^{-x^2}}{x\sqrt{\pi}}\sum_{n=0}^\infty (-1)^n \frac{(2n)!}{n!(2x)^{2n}}
 +
</math>

Latest revision as of 21:44, 9 February 2010

This is my personal sandbox ;).

Some math mode tests:

[math]\sqrt{2}+\pi^{20+a_i} - \tfrac{23}{42}[/math]


[math]\sum_{k=1}^n k = \frac{k(k+1)}{2}[/math]


[math] \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}} [/math]