From charlesreid1

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   \frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =
   \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}}
   \frac{e^{-x^2}}{x\sqrt{\pi}}\sum_{n=0}^\infty (-1)^n \frac{(2n)!}{n!(2x)^{2n}}
</math>
</math>
 
<math>
y = x + 2
</math>

Revision as of 16:41, 29 September 2010

This is a math test:


$ \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}} $

$ y = x + 2 $