# Welcome to Authorea!

Hey, welcome. Double click anywhere on the text to start writing. In addition to simple text you can also add text formatted in boldface, italic, and yes, math too: $$E=mc^{2}$$! Add images by drag’n’drop or click on the ”Insert Figure” button. Three-dimensional saturated anisotropic aquifer ($$\overrightarrow{K}=(K_{x},K_{y},K_{z})$$):

$$S_{\frac{\delta h}{\delta t}}=\frac{\delta}{\delta x}\Big{(}K_{x}\frac{\delta h}{\delta x}\Big{)}+\frac{\delta}{\delta y}\Big{(}K_{y}\frac{\delta h}{\delta y}\Big{)}+\frac{\delta}{\delta z}\Big{(}K_{z}\frac{\delta h}{\delta z}\Big{)}\pm Q(\overrightarrow{x},t)\nonumber \\$$ \begin{aligned} T_{r}(x)=\frac{1}{P{[X\geq x]}}= \\ \frac{1}{1-P{[X\leq x]}}=\frac{1}{1-F(x)}\nonumber \\ \end{aligned}

Citing other papers is easy. Voilà: (CMS/CERN 2012) or (Holstein 2009). Click on the cite button in the toolbar to search articles and cite them. Authorea also comes with a powerful commenting system. Don’t agree that $$E=mc^{3}$$?!? Highlight the text you want to discuss or click the comment button. Find out more about using Authorea on our help page.