You will find that there are dozens of different tutorials available online, ranging from books and courses that you can pay for to tutorials and video lessons that can be downloaded for free. Each of these courses is broken down into sections that will address each of the different sections of formula so that you can learn them in groups. This tends to make it much easier to fully grasp the necessary formula for each section before moving on to the next segment.
This may sound a little unfair. After all, a standard Microsoft installation would include something called Equation Editor. Suffice to say, it wasn‘t advertised in the promotional videos. Software like Matlab was considered vastly superior and had the added advantage that you could analyze the equations as well. Anyway, the good news is that Microsoft has taken a big step forwards with Office 2010 and it‘s now possible to correctly display formulas in a pretty painless fashion. In Excel 2010, you should select the Insert ribbon, and click Equation. This creates a textbox and brings up a whole new ribbon with options for inserting equations. As well as providing easy access to the main Greek symbols, Microsoft have provided quick access to a number of simple functions, such as fractions and exponentials.