Equation Editor in Microsoft Word

Suppose you want to type up a function that involves a square root with an equation editor such as  .  You’re equation editor will probably look slightly different than this one depending on the version you have. 

Use the Insert Command at the top of the page:
   
Then click on Object:

Scroll down to Equation Editor and hit OK: ("Display as Icon" should not be checked and "Float Above Text" should not be checked if you have that command (Float Above Text does not appear here)).

                       

You will see some buttons similar to the ones below.  They might appear as is or they might appear in an equation editor window depending on the version you have.

   

You can go ahead and start typing your equation: Type your f.  Next it is best if you use the parenthesis inside the equation editor any time you need them because they will automatically be resized as needed:
Insert your x, then use your right arrow key (or click outside of the parenthesis) to get outside of the parenthesis.   Type the equal sign that is on the keyboard. Then look for the fraction template (there are two to choose from).  One of the fraction templates has larger text than the other.   If you are going to have exponents or other small text within the fraction you will probably want to use the one with larger text boxes.  I have discovered that if you are going to use the equation in a web page that you always need the larger text box, otherwise the image comes out to small on the web to be readable.
Next position the cursor in the numerator if it is not already there.  Then you can use the square root template.
Type in the text that goes under your square root and then move the cursor to the denominator.  Type the x and then find the exponent template.

Next, type in the 2, to make x2.  Finish typing the denominator and then click outside of the editor box to get out of the equation editor or click on the close box if you are in a window and hit yes when it asks you if you want to save changes. 

Once you get the idea you can experiment with all kinds of templates.  You can make piecewise defined functions, expressions that involve fractions in parenthesis or brackets raised to a power, arrows with or without notes above or below them.  The equation editor automatically puts variables in italics and known functions are in regular type, but you can highlight and change any text to the style you want.  If you explore my handouts or web pages and look at just about any image that involves an equation with something more complicated than variables raised to a power, you can bet that I did it with an equation editor.  If you use your equation image in a web page you can make the equation line up with the text better by putting align=”absmiddle” in the code in the same brackets as img src.  Example:  <img src=”equationim01.gif” align=”absmiddle”>.  You will need to convert your equations into gif or jpeg files before you put them into your web page.   Frontpage does this for you automatically.