[math]\displaystyle{ W(1) = \Omega = \left(\int_{-\infty}^{\infty} \frac{dt}{\left(e^t-t\right)^2 + \pi^2}\right)^{-1} - 1\approx 0.567143290409783872999968662210355549753815787186512508135131079223045793086684566693219446961752294557638\ldots }[/math]
![[math]\displaystyle{ W(1) = \Omega = \left(\int_{-\infty}^{\infty} \frac{dt}{\left(e^t-t\right)^2 + \pi^2}\right)^{-1} - 1\approx 0.567143290409783872999968662210355549753815787186512508135131079223045793086684566693219446961752294557638\ldots }[/math]](http://commons.wikimedia.org/wiki/File:Cosmos-animation_Lambda-CDM.gif){kind=link}